a
Quad Picoampere Input Current
Bipolar Op Amp
AD704
FEATURES
High DC Precision
75 ␮V Max Offset Voltage
1 ␮V/ⴗC Max Offset Voltage Drift
150 pA Max Input Bias Current
0.2 pA/ⴗC Typical I B Drift
Low Noise
0.5 ␮V p-p Typical Noise, 0.1 Hz to 10 Hz
Low Power
600 ␮A Max Supply Current per Amplifier
Chips and MIL-STD-883B Processing Available
Available in Tape and Reel in Accordance
with EIA-481A Standard
Single Version: AD705, Dual Version: AD706
CONNECTION DIAGRAMS
14-Lead Plastic DIP (N)
14-Lead Cerdip (Q) Packages
OUTPUT
1
–IN
2
+IN
3
+VS
4
+IN
5
–IN
6
OUTPUT
7
1
4
AD704
3
PRIMARY APPLICATIONS
Industrial/Process Controls
Weigh Scales
ECG/EKG Instrumentation
Low Frequency Active Filters
OUTPUT
1
16
OUTPUT
–IN
–IN
2
15
–IN
12
+IN
+IN
3
14
+IN
11
–VS
+VS
4
13
–VS
10
+IN
+IN
5
9
–IN
–IN
6
8
OUTPUT
OUTPUT
NC
1
4
AD704
(TOP VIEW)
12
+IN
11
–IN
7
10
OUTPUT
8
9
2
3
NC
OUT1
NC
OUT4
–IN4
3
2
1
20
19
18 +IN4
+IN1 4
NC 5
AMP 1
+VS 6
NC 7
17 NC
AMP 4
16 –VS
AD704
AMP 2
AMP 3
15 NC
14 +IN3
12
13
–IN3
OUT2
11
NC
10
OUT3
9
–IN2
+IN2 8
NC = NO CONNECT
Since it has only 1/20 the input bias current of an AD OP07, the
AD704 does not require the commonly used “balancing” resistor.
Furthermore, the current noise is 1/5 that of the AD OP07 which
makes the AD704 usable with much higher source impedances. At
1/6 the supply current (per amplifier) of the AD OP07, the AD704
is better suited for today’s higher density circuit boards and
battery powered applications.
100
10
TYPICAL JFET AMP
1
0.1
AD704T
+25
TEMPERATURE – C
–IN1
20-Terminal LCC
(E) Package
The AD704 is a quad, low power bipolar op amp that has the
low input bias current of a BiFET amplifier but which offers a
significantly lower IB drift over temperature. It utilizes Superbeta bipolar input transistors to achieve picoampere input bias
current levels (similar to FET input amplifiers at room temperature), while its IB typically only increases by 5× at 125°C (unlike
a BiFET amp, for which IB doubles every 10°C resulting in a
1000× increase at 125°C). Furthermore the AD704 achieves
75 µV offset voltage and low noise characteristics of a precision
bipolar input op amp.
TYPICAL I B – nA
OUTPUT
13
NC = NO CONNECT
PRODUCT DESCRIPTION
0.01
–55
14
(TOP VIEW)
2
16-Lead SOIC
(R) Package
+125
Figure 1. Input Bias Current Over Temperature
The AD704 is an excellent choice for use in low frequency active
filters in 12- and 14-bit data acquisition systems, in precision
instrumentation, and as a high quality integrator. The AD704 is
internally compensated for unity gain and is available in five
performance grades. The AD704J and AD704K are rated over
the commercial temperature range of 0°C to 70°C. The AD704A
and AD704B are rated over the industrial temperature of –40°C
to +85°C. The AD704T is rated over the military temperature
range of –55°C to +125°C and is available processed to MILSTD-883B, Rev. C.
REV. B
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 2001
AD704–SPECIFICATIONS (@ T = 25ⴗC, V
A
Model
Conditions
INPUT OFFSET VOLTAGE
Initial Offset
Offset
vs. Temp, Average TC
vs. Supply (PSRR)
TMIN –TMAX
Long Term Stability
INPUT BIAS CURRENT 1
vs. Temp, Average TC
TMIN –TMAX
TMIN –TMAX
INPUT OFFSET CURRENT
vs. Temp, Average TC
TMIN –TMAX
TMIN –TMAX
CM
= 0 V, and ⴞ15 V dc, unless otherwise noted)
AD704J/A
Min Typ Max
AD704K/B
Min Typ Max
50
100
0.2
132
126
0.3
150
250
1.5
30
50
0.2
132
126
0.3
75
150
1.0
100
270
300
80
150
200
TMIN –TMAX
100
VS = ± 2 to ± 18 V
VS = ± 2.5 to ± 18 V 100
VCM = 0 V
VCM = ± 13.5 V
0.3
VCM = 0 V
VCM = ± 13.5 V
VCM = 0 V
VCM = ± 13.5 V
80
0.6
100
100
VCM = 0 V
VCM = ± 13.5 V
Input Bias Current2
TMIN –TMAX
Common-Mode Rejection 3
TMIN –TMAX
Power Supply Rejection 4
FREQUENCY RESPONSE
UNITY GAIN
Crossover Frequency
Slew Rate, Unity Gain
Slew Rate
TMIN –TMAX
f = 10 Hz
RLOAD = 2 kΩ
INPUT IMPEDANCE
Differential
Common-Mode
INPUT VOLTAGE RANGE
Common-Mode Voltage
Common-Mode Rejection Ratio
VCM = ± 13.5 V
TMIN –TMAX
250
300
30
0.4
80
80
300
400
94
94
94
94
G = –1
TMIN –TMAX
µV
µV
µV/°C
dB
dB
µV/month
200
250
pA
pA
pA/°C
pA
pA
1.0
600
700
100
150
50
0.4
80
100
200
300
110
104
110
106
150
200
400
500
150
250
400
600
104
104
110
106
pA
pA
pA/°C
pA
pA
µV
µV
pA
pA
dB
dB
dB
dB
150
150
150
dB
0.8
0.15
0.1
0.8
0.15
0.1
0.8
0.15
0.1
MHz
V/µs
V/µs
40储2
300储2
40储2
300储2
40储2
300储2
MΩ储pF
GΩ储pF
± 13.5 ± 14
100 132
98
128
± 13.5 ± 14
114 132
108 128
0.1 to 10 Hz
f = 10 Hz
3
50
3
50
INPUT VOLTAGE NOISE
0.1 to 10 Hz
f = 10 Hz
f = 1 kHz
0.5
17
15
0.5
17
15
VO = ± 12 V
RLOAD = 10 kΩ
TMIN –TMAX
VO = ± 10 V
RLOAD = 2 kΩ
TMIN –TMAX
80
Unit
100
150
1.0
132
126
0.3
130
200
300
400
INPUT CURRENT NOISE
OPEN-LOOP GAIN
112
108
200
300
250
400
500
600
TMIN –TMAX
AD704T
Typ Max
30
80
0.2
300
400
MATCHING CHARACTERISTICS
Offset Voltage
Crosstalk5
112
108
Min
22
± 13.5 ± 14
110 132
108 128
V
dB
dB
3
50
2.0
0.5
17
15
22
pA p-p
fA/√Hz
2.0
22
µV p-p
nV/√Hz
nV/√Hz
200
150
2000
1500
400
300
2000
1500
400
300
2000
1500
V/mV
V/mV
200
150
1000
1000
300
200
1000
1000
200
100
1000
1000
V/mV
V/mV
–2–
REV. B
AD704
Model
Conditions
OUTPUT CHARACTERISTICS
Voltage Swing
RLOAD = 10 kΩ
TMIN –TMAX
Short Circuit
Current
CAPACITIVE LOAD
Drive Capability
AD704J/A
Min Typ Max
AD704K/B
Min Typ Max
Min
± 13
± 13
± 13
Gain = +1
10,000
POWER SUPPLY
Rated Performance
Operating Range
Quiescent Current
± 2.0
TRANSISTOR COUNT
± 14
± 15
± 15
TMIN –TMAX
1.5
1.6
# of Transistors
180
± 14
± 15
AD704T
Typ Max
10,000
± 18
2.4
2.6
± 2.0
± 15
1.5
1.6
± 18
2.4
2.6
± 2.0
± 14
± 15
V
mA
10,000
pF
± 15
1.5
1.6
180
Unit
± 18
2.4
2.6
V
V
mA
mA
180
NOTES
1
Bias current specifications are guaranteed maximum at either input.
2
Input bias current match is the maximum difference between corresponding inputs of all four amplifiers.
3
CMRR match is the difference of ∆VOS/∆VCM between any two amplifiers, expressed in dB.
4
PSRR match is the difference between ∆VOS/∆VSUPPLY for any two amplifiers, expressed in dB.
5
See Figure 2a for test circuit.
All min and max specifications are guaranteed.
Specifications subject to change without notice.
METALIZATION PHOTOGRAPH
ABSOLUTE MAXIMUM RATINGS 1
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 18 V
Internal Power Dissipation (25°C) . . . . . . . . . . . . See Note 2
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± VS
Differential Input Voltage3 . . . . . . . . . . . . . . . . . . . . . . . ± 0.7 V
Output Short Circuit Duration (Single Input) . . . . . Indefinite
Storage Temperature Range
(Q) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to +150°C
(N, R) . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to +125°C
Operating Temperature Range
AD704J/K . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
AD704A/B . . . . . . . . . . . . . . . . . . . . . . . . . –40°C to +85°C
AD704T . . . . . . . . . . . . . . . . . . . . . . . . . –55°C to +125°C
Lead Temperature Range (Soldering 10 seconds) . . . . . 300°C
Dimensions shown in inches and (mm).
Contact factory for latest dimensions.
NOTES
1
Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the
device at these or any other conditions above those indicated in
the operational section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
2
Specification is for device in free air:
14-Lead Plastic Package: θJA = 150°C/W
14-Lead Cerdip Package: θJA = 110°C/W
16-Lead SOIC Package: θJA = 100°C/W
20-Terminal LCC Package: θJA = 150°C/W
3
The input pins of this amplifier are protected by back-to-back diodes. If the
differential voltage exceeds ± 0.7 volts, external series protection resistors should
be added to limit the input current to less than 25 mA.
–80
AMP4
CROSSTALK – dB
–100
9k⍀
1k⍀
INPUT*
SIGNAL
1k⍀
AD704
PIN 4
+VS
–
1/4
AD704
OUTPUT
+
2.5k⍀
0.1␮F
1␮F
0.1␮F
1␮F
COM
–VS
AMP3
–120
–140
AD704
PIN 11
ALL 4 AMPLIFIERS ARE CONNECTED AS SHOWN
–160
* THE SIGNAL INPUT (SUCH THAT THE AMPLIFIER'S OUTPUT IS AT MAX
10
AMPLITUDE WITHOUT CLIPPING OR SLEW LIMITING) IS APPLIED TO ONE
AMPLIFIER AT A TIME. THE OUTPUTS OF THE OTHER THREE AMPLIFIERS
ARE THEN MEASURED FOR CROSSTALK.
100
1k
10k
FREQUENCY – Hz
Figure 2b. Crosstalk vs. Frequency
Figure 2a. Crosstalk Test Circuit
REV. B
AMP2
–3–
100k
AD704
ORDERING GUIDE
Model
Temperature Range
Package Option*
AD704JN
AD704JR
AD704JR-/REEL
AD704KN
AD704AN
AD704AQ
AD704AR
AD704AR-REEL
AD704BQ
AD704SE/883B
AD704TQ
AD704TQ/883B
0°C to 70°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–55°C to +125°C
–55°C to +125°C
–55°C to +125°C
N-14
R-16
Tape and Reel
N-14
N-14
Q-14
R-16
Tape and Reel
Q-14
E-20A
Q-14
Q-14
Chips are also available.
*E = Leadless Ceramic Chip Carrier; N = Plastic DIP; Q = Cerdip;
R = Small Outline (SOIC).
Typical Characteristics (@ 25ⴗC, V = ⴞ15 V, unless otherwise noted.)
50
50
40
40
40
30
20
10
–80
20
10
0
–40
0
+40
+80
INPUT OFFSET VOLTAGE – ␮V
TPC 1. Typical Distribution of
Input Offset Voltage
+VS
35
–0.5
30
–1.0
–1.5
+1.5
+1.0
0
5
10
15
SUPPLY VOLTAGE – V
20
TPC 4. Input Common-Mode
Voltage Range vs. Supply Voltage
20
10
–120
–60
0
+60
+120
INPUT OFFSET CURRENT – pA
TPC 3. Typical Distribution of
Input Offset Current
100
25
20
15
10
0
1k
30
0
–80
0
+80
+160
INPUT BIAS CURRENT – pA
5
+0.5
–VS
–160
TPC 2. Typical Distribution of
Input Bias Current
OUTPUT VOLTAGE – V p-p
INPUT COMMON-MODE VOLTAGE LIMIT – V
(REFERRED TO SUPPLY VOLTAGES)
30
OFFSET VOLTAGE DRIFT – ␮V/ⴗC
0
PERCENTAGE OF UNITS
50
PERCENTAGE OF UNITS
PERCENTAGE OF UNITS
S
10k
100k
FREQUENCY – Hz
TPC 5. Large Signal Frequency
Response
–4–
1M
SOURCE RESISTANCE
MAY BE EITHER BALANCED
OR UNBALANCED
10
1.0
0.1
1k
10k
100k
1M
10M
SOURCE RESISTANCE – ⍀
100M
TPC 6. Offset Voltage Drift vs.
Source Resistance
REV. B
AD704
4
40
30
20
10
0
3
2
1
0
–0.8
–0.4
0
+0.4
+0.8
INPUT OFFSET VOLTAGE DRIFT – ␮V/ⴗC
TPC 7. Typical Distribution of
Offset Voltage Drift
1000
100
0
1
2
3
4
WARM-UP TIME – Minutes
80
POSITIVE IB
60
40
NEGATIVE IB
20
0
–15
5
TPC 8. Change in Input Offset
Voltage vs. Warm-Up Time
–10
–5
0
5
10
COMMON-MODE VOLTAGE – V
15
TPC 9. Input Bias Current vs.
Common-Mode Voltage
1000
CURRENT NOISE – fA/ Hz
VOLTAGE NOISE – nV/ Hz
120
INPUT BIAS CURRENT – pA
CHANGE IN OFFSET VOLTAGE – ␮V
PERCENTAGE OF UNITS
50
100
10
100
0.5␮V
100⍀
10
10k⍀
20M⍀
VOUT
1
1
10
100
FREQUENCY – Hz
1
1000
10
100
FREQUENCY – Hz
500
450
0
1000
TPC 11. Input Noise Current
Spectral Density
TPC 10. Input Noise Voltage
Spectral Density
160
180
140
160
+25 C
80
60
0
5
10
15
SUPPLY VOLTAGE – ⴞV
20
TPC 13. Quiescent Supply Current
vs. Supply Voltage (per Amplifier)
REV. B
0
0.1
120
100
–PSR
80
60
20
–55 C
VS = 15V
TA = 25 C
+PSR
40
350
300
100
PSR – dB
+125 C
10
140
VS = 15V
400
5
TIME – Seconds
TPC 12. 0.1 Hz to 10 Hz Noise Voltage
120
CMR – dB
QUIESCENT CURRENT – ␮A
1
40
1
10
100
1k
10k
FREQUENCY – Hz
100k
TPC 14. Common-Mode
Rejection vs. Frequency
–5–
1M
20
0.1
1
10
100
1k
10k
FREQUENCY – Hz
100k
1M
TPC 15. Power Supply Rejection
vs. Frequency
AD704
+25ⴗC
1M
100k
+125ⴗC
1
10
LOAD RESISTANCE – k⍀
100
TPC 16. Open-Loop Gain vs. Load
Resistance Over Temperature
0
120
30
60
100
PHASE
80
90
60
120
150
40
GAIN
180
20
+VS
0
–20
0.01 0.1
OUTPUT VOLTAGE SWING – V
(REFERRED TO SUPPLY VOLTAGES)
–55ⴗC
140
PHASE SHIFT – Degrees
OPEN-LOOP VOLTAGE GAIN – dB
OPEN-LOOP VOLTAGE GAIN
10M
RL = 10k⍀
–0.5
–1.0
–1.5
+1.5
+1.0
+0.5
–VS
1
10 100 1k 10k 100k 1M 10M
FREQUENCY – Hz
TPC 17. Open-Loop Gain and Phase
vs. Frequency
0
5
10
15
SUPPLY VOLTAGE – ⴞV
20
TPC 18. Output Voltage Swing vs.
Supply Voltage
CLOSED-LOOP OUTPUT IMPEDANCE – ⍀
1000
RF
100
100
+VS
90
0.1␮F
10
A V = –1000
1
–
1/4
AD704
A V = +1
0.1
VOUT
RL
2k⍀
+
VIN
CL
10
0%
0.01
SQUARE
WAVE INPUT
I OUT = 1mA
0.001
1
10
100
1k
FREQUENCY – Hz
10k
0.1␮F
50␮s
2V
–VS
100k
TPC 19. Closed-Loop Output
Impedance vs. Frequency
TPC 20a. Unity Gain Follower (For
Large Signal Applications, Resistor RF
Limits the Current through the Input
Protection Diodes)
TPC 20b. Unity Gain Follower Large
Signal Pulse Response RF = 10 kΩ,
CL = 1,000 pF
10k⍀
5␮s
5␮s
+VS
0.1␮F
100
100
90
90
10k⍀
VIN
–
1/4
AD704
+
SQUARE
WAVE INPUT
10
10
0%
0%
20mV
TPC 20c. Unity Gain Follower Small
Signal Pulse Response RF = 0 Ω,
CL = 100 pF
VOUT
RL
2.5k⍀
CL
0.1␮F
–VS
20mV
TPC 20d. Unity Gain Follower Small
Signal Pulse Response RF = 0 Ω,
CL = 1,000 pF
–6–
TPC 21a. Unity Gain Inverter
Connection
REV. B
AD704
50␮s
2V
5␮s
5␮s
100
100
100
90
90
90
10
10
10
0%
0%
0%
20mV
TPC 21b. Unity Gain Inverter Large
Signal Pulse Response, CL = 1,000 pF
20mV
TPC 21c. Unity Gain Inverter Small
Signal Pulse Response, CL = 100 pF
GAIN TRIM
(500k⍀ POT)
OPTIONAL
AC CMRR TRIM
R5
2.4k⍀
R3
6.34k⍀
R4
47.5k⍀
DC
CMRR
TRIM
(5k⍀ POT)
R1
6.34k⍀
ω =
R2
49.9k⍀
Q2 =
1
R6
C1C2
C3
4C4
1
ω=
R6 = R7
R8
R8 = R9
C1
Ct
+VS
C3C4
C3
0.1␮F
1/4
AD704
1/4
AD704
+
R7
1M⍀
R6
1M⍀
–
–
+
R8
1M⍀
1/4
AD704
–
C2
0.1␮F
+
–VIN
C1
4C2
Q1 =
RG
TPC 21d. Unity Gain Inverter Small
Signal Pulse Response, CL = 1,000 pF
R9
1M⍀
C4
1/4
AD704
–
–VS
+VIN
+
OUTPUT
R10, 2M⍀
R11, 2M⍀
INSTRUMENTATION AMPLIFIER GAIN = 1 +
C5, 0.01␮F
R2 2R2
+
(FOR R1 = R3, R2 = R4 + R5)
R1 RG
C6, 0.01␮F
ALL RESISTORS METAL FILM, 1%
OPTIONAL BALANCE RESISTOR
NETWORKS CAN BE REPLACED
WITH A SHORT
CAPACITORS C2 AND C4 ARE
SOUTHERN ELECTRONICS MPCC,
POLYCARBONATE, 5%, 50 VOLT
Figure 3. Gain of 10 Instrumentation Amplifier with Post Filtering
The instrumentation amplifier circuit offers many performance
benefits including BiFET level input bias currents, low input
offset voltage drift and only 1.2 mA quiescent current. It will
operate for gains G ≥ 2, and at lower gains it will benefit from
the fact that there is no output amplifier offset and noise contribution as encountered in a 3 op amp design. Good low frequency
CMRR is achieved even without the optional ac CMRR trim
(Figure 4). Table I provides resistance values for 3 common
circuit gains. For other gains, use the following equations:
Table I. Resistance Values for Various Gains
Circuit Gain
(G)
R1 & R3
RG (Max Value
of Trim Potentiometer)
Bandwidth
(–3 dB), Hz
10
100
1,000
6.34 kΩ
526 Ω
56.2 Ω
166 kΩ
16.6 kΩ
1.66 kΩ
50k
5k
0.5k
160
GAIN = 10, 0.2V p-p COMMON-MODE INPUT
140
COMMON-MODE REJECTION – dB
The instrumentation amplifier with post filtering (Figure 3)
combines two applications which benefit greatly from the
AD704. This circuit achieves low power and dc precision over
temperature with a minimum of components.
R2 = R4 + R5 = 49.9 kΩ
R1 = R3 =
49.9 kΩ
0.9 G − 1
Max Value of RG =
Ct ≈
99.8 kΩ
0.06 G
CIRCUIT TRIMMED
USING CAPACITOR Ct
120
100
80
TYPICAL MONOLITHIC IN AMP
60
40
WITHOUT CAPACITOR Ct
20
1
2 π (R3) 5 × 105
0
1
10
100
FREQUENCY – Hz
1k
10k
Figure 4. Common-Mode Rejection vs. Frequency with
and without Capacitor Ct
REV. B
–7–
AD704
180
OFFSET VOLTAGE
OF FILTER CIRCUIT (RTI) – ␮V
120
WITHOUT OPTIONAL
BALANCE RESISTOR, R3
60
0
C00818–0–1/01 (rev. B)
The 1 Hz, 4-pole active filter offers dc precision with a minimum of components and cost. The low current noise, IOS, and
IB allow the use of 1 MΩ resistors without sacrificing the
1 µV/°C drift of the AD704. This means lower capacitor values
may be used, reducing cost and space. Furthermore, since the
AD704’s IB is as low as its IOS, over most of the MIL temperature range, most applications do not require the use of the
normal balancing resistor (with its stability capacitor). Adding the
optional balancing resistor enhances performance at high
temperatures, as shown in Figure 5. Table II gives capacitor
values for several common low pass responses.
WITH OPTIONAL
BALANCE RESISTOR, R3
–60
–120
–180
–40
0
+40
+80
TEMPERATURE – ⴗC
+120
Figure 5. VOS vs. Temperature Performance of the 1 Hz
Filter Circuit
Table II. 1 Hz, 4-Pole Low-Pass Filter Recommended Component Values
Desired Low
Pass Response
Section 1
Frequency
(Hz)
Bessel
Butterworth
0.1 dB Chebychev
0.2 dB Chebychev
0.5 dB Chebychev
1.0 dB Chebychev
1.43
1.00
0.648
0.603
0.540
0.492
Q
Section 2
Frequency
(Hz)
Q
C1
(␮F)
C2
(␮F)
C3
(␮F)
C4
(␮F)
0.522
0.541
0.619
0.646
0.705
0.785
1.60
1.00
0.948
0.941
0.932
0.925
0.806
1.31
2.18
2.44
2.94
3.56
0.116
0.172
0.304
0.341
0.416
0.508
0.107
0.147
0.198
0.204
0.209
0.206
0.160
0.416
0.733
0.823
1.00
1.23
0.0616
0.0609
0.0385
0.0347
0.0290
0.0242
Specified Values are for a –3 dB point of 1.0 Hz. For other frequencies simply scale capacitors C1 through C4 directly; i.e., for 3 Hz Bessel response, C1 = 0.0387 µF,
C2 = 0.0357 µF, C3 = 0.0533 µF, C4 = 0.0205 µF.
OUTLINE DIMENSIONS
14-Lead Cerdip (Q) Package
14-Lead Plastic DIP (N) Package
16-Lead Plastic SO (R) Package
20-Terminal LCCC (E) Package
0.100 (2.54)
0.064 (1.63)
0.358 (9.09)
0.342 (8.69)
PRINTED IN U.S.A.
Dimensions shown in inches and (mm).
0.040 (1.02)
x 45 REF
3 PLCS
0.028 (0.71)
0.022 (0.56)
NO. 1 PIN
INDEX
0.050
(1.27)
BSC
0.020 (0.51)
x 45 REF
–8–
REV. B