ZTA358
Dual Operational Amplifiers
FEATURES
DESCRIPTION
● Wide
The ZTA358 consists of two independent,
high-gain, (internally) frequency-compensated
operational amplifiers, which were designed
specifically to operate from a single power
supply over a wide range of voltages. The
device operation from split power supplies is
also possible and the low power supply current
drain is independent of the magnitude of the
power supply voltage.
Its application areas include transducer
amplifiers, dc gain blocks and all the
conventional operational amplifier circuits.
Range of Supply Voltages
● Low Supply Current Drain Independent of
the Supply Voltage
● Low Input Biasing Current
● Low Input Offset Voltage and Offset Current
● Input Common-Mode Voltage Range
Including the Ground
● Differential Input Voltage Range Equal to the
Power Supply Voltage
● DC Voltage Gain 100V/mV (Typ.)
● Internal Frequency Compensation
APPLICATIONS
Pins Configuration
● Battery
Charger
● Cordless Telephone
● Switching Power Supply
Top View SOP‐8L
OUT1 1
8 VCC
IN1− 2
7 OUT2
IN1+ 3
6 IN2−
GND 4
5 IN2+
ORDERING INFORMATION
PART
ZTA358S
PACKAGE RoHS
SOP-8L
Yes
Ship, Quantity
Tape and Reel
Block Diagram
DS-10; Dec. 27, 2011
Copyright © ZillTek Technology Corp.
-1-
4F-3, No.5, Technology Rd., Science-Based
Industrial Park, Hsinchu 30078, Taiwan
Tel: (886) 3577 7509; Fax: (886) 3577 7390
Email: sales@zilltek.com
ZTA358
Typical Single-Supply Applications
+
(V = 5.0 VDC)
Non-Inverting DC Gain (0V Output)
Note: R is not needed from +VIN to 1/2 ZTA358 due to
temperature independent IIN.
DC Summing Amplifier
Power Amplifier
(VIN’S ≥ 0 VDC and VO ≥ 0 VDC)
VO = 0 VDC for VIN = 0 VDC
AV = 10
Where: VO = V1 + V2 – V3 – V4
(V1 + V2) ≥ (V3 + V4) to keep VO > 0 VDC
“BI-QUAD” RC Active Band-Pass Filter
fO = 1kHz, Q = 50,. AV = 100 (40dB)
Fixed Current Sources
Lamp Driver
I2 = (R1/R2) × I1
DS-10; Dec. 27, 2011
Copyright © ZillTek Technology Corp.
-2-
4F-3, No.5, Technology Rd., Science-Based
Industrial Park, Hsinchu 30078, Taiwan
Tel: (886) 3577 7509; Fax: (886) 3577 7390
Email: sales@zilltek.com
ZTA358
Typical Single-Supply Applications
(Continued…)
Square Wave Oscillator
Pulse Generator
Absolute Maximum Ratings
Pins Description
Supply Voltage VCC ……………………………………………….. +45V
Input Voltage VIN ……………………………………. −0.3V to +45V
Input Current IIN (at VIN = −0.3V) …………………………. 50mA
Operating Temperature Range ……………. –40°C to +125°C
ESD ……...………………………………………………………………. 700V
CAUTION: Stresses above those listed in “Absolute
Maximum Ratings” may cause permanent damage to
the device. This is a stress only rating and operation of
the device at these or any other conditions above those
indicated in the operational sections of this specification
is not implied.
Pin
Description
1
OUT1 (AMPL #1)
2
IN1− (AMPL #1)
3
IN1+ (AMPL #1)
4
GND
5
IN2+ (AMPL #2)
6
IN2− (AMPL #2)
7
OUT2 (AMPL #2)
8
VCC
Electro-Static Discharge Sensitivity
This integrated circuit can be damaged by ESD.
It is recommended that all integrated circuits
be handled with proper precautions. Failure
to observe proper handling and installation procedures
can cause damage. ESD damage can range from subtle
performance degradation to complete device failure.
DS-10; Dec. 27, 2011
Copyright © ZillTek Technology Corp.
-3-
4F-3, No.5, Technology Rd., Science-Based
Industrial Park, Hsinchu 30078, Taiwan
Tel: (886) 3577 7509; Fax: (886) 3577 7390
Email: sales@zilltek.com
ZTA358
Electrical Specifications
(At specified free-air temperature, VCC = +5V, unless otherwise specified.)
TYP
MAX
UNIT
25°C
VCC = +5V to max,
VIC = VICR(min), VO = +1.4V Full range
3
7
9
mV
Full range
7
25°C
Full range
2
Full range
10
25°C
Full range
−20
Symbol
TEST CONDITIONS (Note)
Input Offset Voltage
VIO
Average Temperature Coefficient
of Input Offset Voltage
αVIO
PARAMETER
Input Offset Current
IIO
Average Temperature Coefficient
of Input Offset Current
αIIO
Input Bias Current
IIB
VO = +1.4V
VO = +1.4V
MIN
0 to
VCC−1.5
0 to
Full range
VCC−2
Full range
26
Full range
27
Full range
25°C
25
Full range
15
μV/°C
50
150
nA
pA/°C
−250
−500
nA
25°C
Common-Mode Input Voltage
Range
VICR
High-Level Output Voltage
VOH
Low-Level Output Voltage
VOL
Large-Signal Differential Voltage
Amplification
AVD
VCC = +15V, RL ≥ 2kΩ
VOUT = +1V to +11V
Common-Mode Rejection Ratio
CMRR
VCC = +5V to max,
VIC = VICR(min)
25°C
65
80
dB
kSVR
VCC = +5V to max
25°C
65
100
dB
VO1/VO2
f = 1kHz to 20kHz
25°C
25°C
Full range
25°C
Full range
120
−50
dB
Supply Voltage Rejection Ratio
(ΔVCC/ΔVIO)
Crosstalk Attenuation
VCC = +5V to max
VCC = max, RL = 2kΩ
VCC = max, RL ≥ 10kΩ
RL ≥ 10kΩ
VCC = +15V,
VID = +1V, VO = 0V
Output Current
IOUT
Short-Circuit Output Current
IOS
Supply Current (Two Amplifiers)
ICC
Slew Rate
Gain Bandwidth
Total Harmonic Distortion
VCC = +15V,
VID = −1V, VO = +15V
VCC = +15V,
25°C
VID = −1V, VO = +2V
VID = −1V, VO = +200mV
25°C
VID = −1V, VO = +15V
25°C
VCC = +2.5V, No load Full range
VCC = max, VO = 0.5VCC,
Full range
No load
VCC = +15V, RL = 2kΩ,
VIN = +0.5V to +3V,
25°C
CL = 100pF, Unity gain
VCC = +30V, f = 100kHz,
VIN = +10mV, RL = 2kΩ,
25°C
CL = 100pF
f = 1kHz, AV = 20dB,
25°C
RL = 2kΩ, VO = 2Vpp,
CL = 100pF
−30
−20
15
7
V
28
5
100
V
20
mV
V/mV
mA
35
15
28
mA
12
50
50
0.7
70
1.2
μA
mA
mA
1
2
mA
0.35
V/μs
700
kHz
0.04
%
Note: All characteristics are measured under the open-loop conditions with zero common-mode input voltage, unless
otherwise specified. Max VCC for testing purposes is +36V, Vccabsmax = +45V. Full range is −40°С to +125°С.
DS-10; Dec. 27, 2011
Copyright © ZillTek Technology Corp.
-4-
4F-3, No.5, Technology Rd., Science-Based
Industrial Park, Hsinchu 30078, Taiwan
Tel: (886) 3577 7509; Fax: (886) 3577 7390
Email: sales@zilltek.com
ZTA358
Typical Characteristics
Inverting Op Amp With Vcc Bias
Supply Current
Output Characteristics Current Sinking
Output Characteristics: Current Sourcing
Current Limiting
Large Signal Frequency Response
DS-10; Dec. 27, 2011
Copyright © ZillTek Technology Corp.
-5-
4F-3, No.5, Technology Rd., Science-Based
Industrial Park, Hsinchu 30078, Taiwan
Tel: (886) 3577 7509; Fax: (886) 3577 7390
Email: sales@zilltek.com
ZTA358
Typical Characteristics
(Continued…)
Open Loop Frequency Response
Voltage Gain
Voltage Follower Pulse Response
Voltage Follower Pulse Response (Small Signal)
Input Current
Input Voltage Range
DS-10; Dec. 27, 2011
Copyright © ZillTek Technology Corp.
-6-
4F-3, No.5, Technology Rd., Science-Based
Industrial Park, Hsinchu 30078, Taiwan
Tel: (886) 3577 7509; Fax: (886) 3577 7390
Email: sales@zilltek.com
ZTA358
PACKAGE DIMENSIONS
SOP-8L
E
C
e
b
D
A2
A
θ
A1
SYMBOLS
DIMENSION (MM)
H
L
DIMENSION (INCH)
MIN
MAX
MIN
MAX
A
1.300
1.752
0.051
0.069
A1
0.000
0.150
0.000
0.006
A2
1.350
1.550
0.053
0.061
b
0.330
0.510
0.013
0.020
C
5.790
6.200
0.228
0.244
D
4.700
5.110
0.185
0.201
E
3.800
4.000
0.150
0.157
e
1.27 BSC
0.05 BSC
H
0.170
0.254
0.007
0.010
L
0.400
1.270
0.016
0.050
θ
0°
8°
0°
8°
DS-10; Dec. 27, 2011
Copyright © ZillTek Technology Corp.
-7-
4F-3, No.5, Technology Rd., Science-Based
Industrial Park, Hsinchu 30078, Taiwan
Tel: (886) 3577 7509; Fax: (886) 3577 7390
Email: sales@zilltek.com