FEATURES
PIN CONNECTION DIAGRAM
Single-supply operation
Wide bandwidth: 4.25 MHz
Low offset voltage: 100 μV
Unity-gain stable
High slew rate: 4.0 V/μs
Low noise: 3.9 nV/√Hz
OUT A 1
8
V+
–IN A 2
7
OUT B
+IN A 3
6
–IN B
V– 4
5
+IN B
OP284-EP
TOP VIEW
(Not to Scale)
12562-001
Enhanced Product
Precision RRI0 Dual Operational Amplifier
OP284-EP
Figure 1.
ENHANCED PRODUCT FEATURES
Supports defense and aerospace applications (AQEC standard)
Military temperature range (−55°C to +125°C)
Controlled manufacturing baseline
1 assembly/test site
1 fabrication site
Enhanced product change notification
Qualification data available on request
APPLICATIONS
Battery-powered instrumentation
Power supply control and protection
Telecommunications
DAC output amplifier
ADC input buffer
GENERAL DESCRIPTION
The OP284-EP is a dual, single-supply, 4.25 MHz bandwidth
amplifier featuring rail-to-rail inputs and outputs (RRIO).
The OP284-EP is guaranteed to operate from 5 V to 36 V (or
±2.5 V to ±18 V).
This amplifier is superb for single-supply applications requiring
both ac and precision dc performance. The combination of
wide bandwidth, low noise, and precision makes the OP284-EP
useful in a wide variety of applications, including filters and
instrumentation.
and use as an amplifier or buffer for transducers with wide
output ranges. Sensors requiring a rail-to-rail input amplifier
include Hall effect, piezoelectric, and resistive transducers.
The ability to swing rail to rail at both the input and output
enables designers to build multistage filters in single-supply
systems and to maintain high signal-to-noise ratios.
The OP284-EP is specified over the extended industrial
temperature range of −55°C to +125°C. The OP284-EP is
available in a SOIC surface-mount package.
Other applications for this amplifier include portable telecommunications equipment, power supply control and protection,
Rev. 0
Document Feedback
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 that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
©2015 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
OP284-EP
Enhanced Product
TABLE OF CONTENTS
Features .............................................................................................. 1
Absolute Maximum Ratings ............................................................5
Enhanced Product Features ............................................................ 1
Thermal Resistance .......................................................................5
Applications ....................................................................................... 1
ESD Caution...................................................................................5
Pin Configuration ............................................................................. 1
Typical Performance Characteristics ..............................................6
General Description ......................................................................... 1
Outline Dimensions ....................................................................... 13
Revision History ............................................................................... 2
Ordering Guide .......................................................................... 13
Specifications..................................................................................... 3
Electrical Characteristics ............................................................. 3
REVISION HISTORY
5/15—Revision 0: Initial Version
Rev. 0 | Page 2 of 13
Enhanced Product
OP284-EP
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
VS = 5.0 V, VCM = 2.5 V, TA = 25°C, unless otherwise noted.
Table 1.
Parameter
INPUT CHARACTERISTICS
Offset Voltage
Symbol
Test Conditions/Comments
Min
Typ
VOS
−55°C ≤ TA ≤ +125°C
Input Bias Current
IB
60
–55°C ≤ TA ≤ +125°C
Input Offset Current
Offset Voltage Drift
Bias Current Drift
OUTPUT CHARACTERISTICS
Output Voltage High
Output Voltage Low
Output Current
POWER SUPPLY
Supply Current/Amplifier
DYNAMIC PERFORMANCE
Slew Rate
Settling Time
Gain Bandwidth Product
Phase Margin
NOISE PERFORMANCE
Voltage Noise
Voltage Noise Density
Current Noise Density
Unit
125
250
450
600
μV
μV
nA
nA
50
5
nA
V
dB
V/mV
V/mV
µV/°C
pA/°C
IOS
–55°C ≤ TA ≤ +125°C
Input Voltage Range
Common-Mode Rejection Ratio
Large Signal Voltage Gain
Max
CMRR
AVO
VCM = 1.0 V to 4.0 V, −55°C ≤ TA ≤ +125°C
RL = 2 kΩ, 1 V ≤ VOUT ≤ 4 V
RL = 2 kΩ, −55°C ≤ TA ≤ +125°C
0
86
50
25
ΔVOS/ΔT
ΔIB/ΔT
240
0.2
150
VOH
VOL
IOUT
IL = 1.0 mA
IL = 1.0 mA
ISY
VOUT = 2.5 V, −55°C ≤ TA ≤ +125°C
SR
tS
GBP
ΦM
RL = 2 kΩ
To 0.01%, 1.0 V step
en p-p
en
in
0.1 Hz to 10 Hz
f = 1 kHz
2.00
4.80
125
V
mV
mA
1.45
mA
±6.5
Rev. 0 | Page 3 of 13
1.65
2.4
2.5
3.25
45
V/µs
µs
MHz
Degrees
0.3
3.9
0.4
μV p-p
nV/√Hz
pA/√Hz
OP284-EP
Enhanced Product
VS = ±15.0 V, VCM = 0 V, TA = 25°C, unless otherwise noted.
Table 2.
Parameter
INPUT CHARACTERISTICS
Offset Voltage
Symbol
Test Conditions/Comments
Min
Typ
VOS
−55°C ≤ TA ≤ +125°C
Input Bias Current
Input Offset Current
Input Voltage Range
Common-Mode Rejection Ratio
Large Signal Voltage Gain
Offset Voltage Drift
Bias Current Drift
OUTPUT CHARACTERISTICS
Output Voltage High
Output Voltage Low
Output Current
POWER SUPPLY
Power Supply Rejection Ratio
Supply Current/Amplifier
DYNAMIC PERFORMANCE
Slew Rate
Full Power Bandwidth
Settling Time
Gain Bandwidth Product
Phase Margin
NOISE PERFORMANCE
Voltage Noise
Voltage Noise Density
Current Noise Density
IB
IOS
CMRR
AVO
80
−55°C ≤ TA ≤ +125°C
−55°C ≤ TA ≤ +125°C
VCM = −14.0 V to +14.0 V, −55°C ≤ TA ≤ +125°C
RL = 2 kΩ, −10 V ≤ VOUT ≤ 10 V
RL = 2 kΩ, −55°C ≤ TA ≤ +125°C
−15
86
150
75
ΔVOS/ΔT
ΔVB/ΔT
IL = 1.0 mA
IL = 1.0 mA
PSRR
ISY
VS = ±2.0 V to ±18 V, −55°C ≤ TA ≤ +125°C
VOUT = 0 V, −55°C ≤ TA ≤ +125°C
VS = ±18 V, −55°C ≤ TA ≤ +125°C
90
SR
BWp
tS
GBP
ΦM
RL = 2 kΩ
1% distortion, RL = 2 kΩ, VOUT = 29 V p-p
To 0.01%, 10 V step
2.4
en p-p
en
in
0.1 Hz to 10 Hz
f = 1 kHz
Unit
100
200
450
600
50
+15
μV
μV
nA
nA
nA
V
dB
V/mV
V/mV
µV/°C
pA/°C
90
1000
0.2
150
VOH
VOL
IOUT
Max
2.00
14.8
−14.875
±10
Rev. 0 | Page 4 of 13
2.0
2.25
V
V
mA
dB
mA
mA
4.0
35
4
4.25
50
V/µs
kHz
µs
MHz
Degrees
0.3
3.9
0.4
µV p-p
nV/√Hz
pA/√Hz
Enhanced Product
OP284-EP
ABSOLUTE MAXIMUM RATINGS
Table 3.
Parameter
Supply Voltage
Input Voltage
Differential Input Voltage1
Output Short-Circuit Duration to GND
Storage Temperature Range
Operating Temperature Range
Junction Temperature Range
Lead Temperature (Soldering 60 sec)
1
Rating
±18 V
±18 V
±0.6 V
Indefinite
−65°C to +150°C
−55°C to +125°C
−65°C to +150°C
300°C
For input voltages greater than 0.6 V, the input current must be limited to
less than 5 mA to prevent degradation or destruction of the input devices.
THERMAL RESISTANCE
θJA is specified for the worst-case conditions; that is, θJA is
specified for a device soldered in the circuit board for the SOIC
package.
Table 4. Thermal Resistance
Package Type
8-Lead SOIC
ESD CAUTION
Stresses at or above those listed under Absolute Maximum
Ratings may cause permanent damage to the product. This is a
stress rating only; functional operation of the product at these
or any other conditions above those indicated in the operational
section of this specification is not implied. Operation beyond
the maximum operating conditions for extended periods may
affect product reliability.
Rev. 0 | Page 5 of 13
θJA
158
θJC
43
Unit
°C/W
OP284-EP
Enhanced Product
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
–IN A 2
+IN A 3
V– 4
8
OP284-EP
V+
OUT B
TOP VIEW
6 –IN B
(Not to Scale)
5 +IN B
7
12562-002
OUT A 1
Figure 2. Pin Configuration
Table 5. Pin Function Descriptions
Pin No.
1
2
3
4
5
6
7
8
Mnemonic
OUT A
−IN A
+INA
V−
+IN B
−IN B
OUT B
V+
Description
Output Channel A.
Inverting Input Channel A.
Noninverting Input Channel A.
Negative Supply Voltage.
Noninverting Input Channel B.
Inverting Input Channel B.
Output Channel B.
Positive Supply Voltage.
Rev. 0 | Page 6 of 13
Enhanced Product
OP284-EP
TYPICAL PERFORMANCE CHARACTERISTICS
20
25
VS = 5V
TA = 25°C
VCM = 2.5V
18
VS = ±15V
–55°C ≤ TA ≤ +125°C
20
14
FREQUENCY (Hz)
FREQUENCY (Hz)
16
12
10
8
15
10
6
4
5
–200 –160 –120 –80
–40
0
40
80
120
160
200
INPUT OFFSET VOLTAGE (µV)
0
12562-006
0.4
180
VS = ±15V
18 TA = 25°C
160
16
140
INPUT BIAS CURRENT (nA)
0.6
0.8
1.0
14
12
10
8
6
4
VCM = VS/2
VS = ±15V
120
100
VS = 5V
80
60
40
20
2
–40
0
40
80
120
160
200
INPUT OFFSET VOLTAGE (µV)
0
–75
12562-007
–200 –160 –120 –80
–50
–25
0
25
50
75
100
125
TEMPERATURE (°C)
Figure 4. Input Offset Voltage Distribution, VS = ±15 V
Figure 7. Bias Current vs. Temperature
25
500
VS = ±15V
VS = 5V
–55°C ≤ TA ≤ +125°C
400
20
INPUT BIAS CURRENT (nA)
300
15
10
5
200
100
0
–100
–200
–300
–400
–1.0 –0.8 –0.6 –0.4 –0.2
0
0.2
0.4
0.6
0.8
1.0
TCVOS (µV/°C)
–500
–15
12562-008
0
–10
–5
0
5
10
COMMON-MODE VOLTAGE (V)
Figure 8. Input Bias Current vs. Common-Mode Voltage
Figure 5. Input Offset Voltage Drift Distribution, VS = 5 V
Rev. 0 | Page 7 of 13
15
12562-011
FREQUENCY (Hz)
0.2
Figure 6. Input Offset Voltage Drift Distribution, VS = ±15 V
20
FREQUENCY (Hz)
0
TCVOS (µV/°C)
Figure 3. Input Offset Voltage Distribution, VS = 5 V
0
–1.0 –0.8 –0.6 –0.4 –0.2
12562-010
0
12562-009
2
OP284-EP
Enhanced Product
1000
70
VS = ±15V
VS = 5V
TA = 25°C
NO LOAD
60
10
0.01
0.1
1
10
LOAD CURRENT (mA)
45
90
10
135
0
180
–10
225
–20
270
100k
1M
10M
FREQUENCY (Hz)
Figure 12. Open-Loop Gain and Phase vs. Frequency (No Load), VS = 5 V
1.5
70
VS = 3V
TA = 25°C
NO LOAD
60
1.4
VS = ±15V
1.1
VS = 5V
1
0.9
0.8
–50
–25
0
25
50
75
100
125
TEMPERATURE (°C)
20
90
10
135
0
180
–10
225
–20
270
100k
1M
10M
FREQUENCY (Hz)
Figure 13. Open-Loop Gain and Phase vs. Frequency (No Load), VS = 3 V
50
70
VS = ±15V
TA = 25°C
NO LOAD
60
+ISC
40
–ISC
30
–ISC
+ISC
VS = 5V, VCM = 2.5V
10
–25
0
25
50
75
100
TEMPERATURE (°C)
Figure 11. Short-Circuit Current vs. Temperature
125
0
30
45
20
90
10
135
0
180
–10
225
–20
270
–30
10k
12562-015
–50
40
100k
1M
FREQUENCY (Hz)
10M
PHASE SHIFT (Degrees)
OPEN-LOOP GAIN (dB)
50
VS = ±15V
0
–75
45
–30
10k
Figure 10. Supply Current vs. Temperature
20
0
30
12562-018
0.7
–75
40
12562-017
OPEN-LOOP GAIN (dB)
1.2
PHASE SHIFT (Degrees)
50
1.3
12562-013
SUPPLY CURRENT PER AMPLIFIER (mA)
30
20
–30
10k
Figure 9. Output Voltage to Supply Rail vs. Load Current
SHORT-CIRCUIT CURRENT (mA)
0
PHASE SHIFT (Degrees)
SINK
40
12562-016
OPEN-LOOP GAIN (dB)
SOURCE
100
12562-012
OUTPUT VOLTAGE (mV)
50
Figure 14. Open-Loop Gain and Phase vs. Frequency (No Load), VS = ±15 V
Rev. 0 | Page 8 of 13
Enhanced Product
OP284-EP
300
4000
VS = 15V
TA = 25°C
270
3500
VS = ±15V
–10V < VOUT < +10V
RL = 2kΩ
2000
1500
VS = 5V
1V < VOUT < 4V
RL = 2kΩ
1000
210
150
120
90
60
500
30
–50
–25
0
25
50
75
100
125
TEMPERATURE (°C)
AV = +1
0
10
12562-019
0
–75
100
10k
100k
1M
10M
Figure 18. Output Impedance vs. Frequency
60
5
40
30
20
10
0
–10
–20
4
3
2
1
–30
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
0
1k
12562-021
–40
10
VS = 5V
VIN = 0.5V TO 4.5V
RL = 2kΩ
TA = 25°C
100k
1M
Figure 19. Maximum Output Swing vs. Frequency
300
30
VS = 5V
TA = 25°C
10M
FREQUENCY (Hz)
Figure 16. Closed-Loop Gain vs. Frequency (2 kΩ Load)
270
10k
12562-026
MAXIMUM OUTPUT SWING (V p-p)
VS = ±15V
RL = 2kΩ
TA = 25°C
50
VS = ±15V
VIN = ±14V
RL = 2kΩ
TA = 25°C
AV = +10
25
240
AV = +100
210
20
VOUT (V)
180
150
120
10
90
60
5
100
1k
10k
100k
1M
FREQUENCY (Hz)
10M
12562-023
AV = +1
30
0
10
15
Figure 17. Output Impedance vs. Frequency
0
1k
10k
100k
1M
FREQUENCY (Hz)
Figure 20. Maximum Output Swing vs. Frequency
Rev. 0 | Page 9 of 13
10M
12562-027
CLOSED-LOOP GAIN (dB)
1k
FREQUENCY (Hz)
Figure 15. Open-Loop Gain vs. Temperature
OUTPUT IMPEDANCE (Ω)
AV = +10
AV = +100
180
12562-024
2500
OUTPUT IMPEDANCE (Ω)
OPEN-LOOP GAIN (V/mV)
240
3000
OP284-EP
Enhanced Product
6
180
TA = 25°C
160
+SLEW RATE
5
140
VS = ±15V
RL = 2kΩ
SLEW RATE (V/µV)
CMRR (dB)
120
100
VS = ±15V
80
60
40
20
4
–SLEW RATE
3
+SLEW RATE
–SLEW RATE
2
VS = 5V
RL = 2kΩ
VS = +5V
1
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
0
–75
12562-028
–20
10
0
–25
25
50
75
30
±2.5V ≤ VS ≤ ±15V
TA = 25°C
VOLTAGE NOISE DENSITY (nV/ Hz)
TA = 25°C
120
100
80
VS = ±15V
60
40
125
Figure 24. Slew Rate vs. Temperature
160
140
100
TEMPERATURE (°C)
Figure 21. CMRR vs. Frequency
PSRR (dB)
–50
12562-031
0
VS = +5V
20
0
25
20
15
10
5
1k
10k
100k
1M
10M
FREQUENCY (Hz)
0
1
100
Figure 25. Voltage Noise Density vs. Frequency
80
10
CURRENT NOISE DENSITY (pA/ Hz)
VS = ±2.5V
TA = 25°C, AVCL = 1
70 V = ±50mV
IN
60
–OS
50
40
+OS
30
20
100
CAPACITIVE LOAD (pF)
1000
12562-030
10
0
10
1000
FREQUENCY (Hz)
Figure 22. PSRR vs. Frequency
OVERSHOOT (%)
10
Figure 23. Small Signal Overshoot vs. Capacitive Load
±2.5V ≤ VS ≤ ±15V
TA = 25°C
8
6
4
2
0
1
10
100
FREQUENCY (Hz)
Figure 26. Current Noise Density vs. Frequency
Rev. 0 | Page 10 of 13
1000
12562-033
100
12562-029
–40
10
12562-032
–20
Enhanced Product
OP284-EP
0.3
5
VS = 5V
TA = 25°C
4
VS = ±15V
AV = 10M
0.2
3
0.1
1
0.1%
0
NOISE (µV)
STEP SIZE (V)
2
0.01%
–1
0
–0.1
–2
–3
–0.2
0
1
2
3
4
5
6
SETTLING TIME (µs)
–0.3
–5
12562-034
–5
–3
–2
–1
0
TIME
1
2
3
4
5
Figure 30. 0.1 Hz to 10 Hz Noise, VS = ±15 V
Figure 27. Step Size vs. Settling Time, VS = 5 V
160
10
TA = 25°C
VS = ±15V
TA = 25°C
8
140
CHANNEL SEPARATION (dB)
6
4
2
0.1%
0
0.01%
–2
–4
–6
120
VS = ±15V
100
80
60
40
20
0
–20
–8
0
1
2
3
4
5
6
SETTLING TIME (µs)
–40
100
12562-035
–10
1k
10k
100k
1M
10M
FREQUENCY (Hz)
12562-038
STEP SIZE (V)
–4
12562-037
–4
Figure 31. Channel Separation vs. Frequency
Figure 28. Step Size vs. Settling Time, VS = ±15 V
0.3
VS = 5V
AV = +1
RL = OPEN
CL = 300pF
TA = 25°C
VS = ±2.5V
AV = 10M
0.2
400mV
0
–0.1
0V
100mV
–0.3
–5
–4
–3
–2
–1
0
TIME
1
2
3
4
5
1µs
Figure 32. Small Signal Transient Response
Figure 29. 0.1 Hz to 10 Hz Noise, VS = ±2.5 V
Rev. 0 | Page 11 of 13
12562-039
–0.2
12562-036
NOISE (µV)
0.1
OP284-EP
Enhanced Product
0.1
VS = 5V
AV = +1
RL = 2kΩ
CL = 300pF
TA = 25°C
THD + N (%)
400mV
VOUT = ±0.75V
AV = +1000
VS = ±2.5V
RL = 2kΩ
0.01
VOUT = ±2.5V
1µs
VOUT = ±1.5V
0.001
0.0005
20
100
1k
10k
20k
FREQUENCY (Hz)
Figure 34. Total Harmonic Distortion + Noise vs. Frequency
Figure 33. Small Signal Transient Response
Rev. 0 | Page 12 of 13
12562-043
100mV
12562-040
0V
Enhanced Product
OP284-EP
OUTLINE DIMENSIONS
5.00 (0.1968)
4.80 (0.1890)
1
5
6.20 (0.2441)
5.80 (0.2284)
4
1.27 (0.0500)
BSC
0.25 (0.0098)
0.10 (0.0040)
1.75 (0.0688)
1.35 (0.0532)
0.51 (0.0201)
0.31 (0.0122)
COPLANARITY
0.10
SEATING
PLANE
0.50 (0.0196)
0.25 (0.0099)
45°
8°
0°
0.25 (0.0098)
0.17 (0.0067)
1.27 (0.0500)
0.40 (0.0157)
COMPLIANT TO JEDEC STANDARDS MS-012-AA
CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS
(IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR
REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN.
012407-A
8
4.00 (0.1574)
3.80 (0.1497)
Figure 35. 8-Lead Standard Small Outline Package [SOIC_N]
Narrow Body
(R-8)
Dimensions shown in millimeters and (inches)
ORDERING GUIDE
Model1
OP284TRZ-EP-R7
1
Temperature Range
−55°C to +125°C
Package Description
8-Lead Standard Small Outline Package [SOIC_N]
Z = RoHS Compliant Part.
©2015 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
D12562-0-5/15(0)
Rev. 0 | Page 13 of 13
Package Option
R-8