Document
Advanced Monolithic Systems
AMSOP-77
ULTRA LOW OFFSET VOLTAGE OPERATIONAL AMPLIFIER
RoHS compliant
FEATURES
• Outstanding Linearity • Low VOS overTemperature.…………………. 55µV Max • Excellent VOS Drift………………………. 0.6µV/°C Max • Ultra High Gain………………………….5000V/mV Min • High PSRR……………………………………3µV/V Max • Low Power Consumption…………………….60mW Max
APPLICATIONS
• High-Gain Instrumentation • Precision Data Acquisition • Precision Integrators • Precision Threshold Detectors • Biomedical Amplifiers
GENERAL DESCRIPTION The AMSOP-77 is a precision operational amplifier with an ultra low input offset voltage. This device features a wide input voltage range of ±13V minimum, low input bias current, high impedance, high PSRR, high CMRR, excellent stability of offsets and gain over time and temperature. Exceptional gain linearity eliminates incorrectable system nonlinearities common in previous monolithic op amps, and provides superior performance in high closed-loop gain applications. Low cost, low noise, low offsets and high open-loop gain make the AMSOP-77 an excellent choice particularly for high-gain instrumentation applications. Other applications include precision data acquisition, precision integrators, threshold detectors and medical instrumentation.
The AMSOP-77 is operational in the commercial temperature range of 0°C to 70°C and is available in the 8 lead SOIC and plastic dip (PDIP) packages.
ORDERING INFORMATION:
TOL.
PACKAGE TYPE
8 LEAD SOIC ±25µV AMSOP-77ES ±60µV AMSOP-77FS ±100µV AMSOP-77GS
8 LEAD PDIP AMSOP-77EP AMSOP-77FP AMSOP-77GP
OPERATING TEMPERATURE RANGE
0 to 70° C 0 to 70° C 0 to 70° C
PIN CONNECTIONS
8 Lead SOIC/ 8Lead PDIP
VOS TRIM 1 -IN 2 +IN 3 V- 4
8 VOS TRIM 7 V+ 6 OUT 5 N/C
Top View
Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723
ABSOLUTE MAXIMUM RATINGS (Note1)
Supply Voltage
±22V
Differential Input Voltage
±30V
Input Voltage
±22V
Output Short Circuit Duration
Indefinite
Operating Temperature Range
0°C to70°C
AMSOP-77
Storage temperature Junction Temperature Soldering information (25 sec) Thermal Resistance
8 L SOIC 8 L PDIP
-65°C to +125°C +150°C 265°C
158°C/W 103°C/W
ELECTRICAL CHARACTERISTICS
Electrical Characteristics at VIN =±15V and TA = +25°C unless otherwise specified.
Parameter
Conditions
AMSOP-77E
AMSOP-77F
Min Typ Max Min Typ Max
Input Offset Voltage
10
25
20
60
Long Term VOS Stability
Input Offset Current
(Note 2)
0.3
0.3
1.5
0.4
0.3
2.8
Input Bias Current
-0.2
1.2
2.0
-0.2
1.2
2.8
Input Noise Voltage 0.1Hz to 10Hz
0.35
0.6
0.38
0.65
Input Noise Voltage Density
Input Noise Current
fO = 10Hz fO = 100Hz (Note 3) fO = 1000Hz
0.1Hz to 10Hz
10.3
18.0
10.0
13.0
9.6
11.0
14
30
10.5
20.0
10.2
13.5
9.8
11.5
15
35
Input Noise Current Density
Input Resistance Differential-Mode Input Resistance Common-Mode
Input Voltage Range
fO = 10Hz fO = 100Hz (Note 3) fO = 1000Hz
(Note 4)
0.32
0.80
0.14
0.23
0.12
0.17
0.35
0.90
0.15
0.27
0.13
0.18
26
45
18.5
45
200
200
± 13
± 14
± 13
± 14
Common-Mode Rejection Ratio
VCM = ± 13
0.1
1.0
0.1
1.6
Power Supply Rejection Ratio
VS = ± 13 to ± 18
0.7
3.0
0.7
3.0
Large-Signal Voltage Gain
RL≥2kΩ, VO =± 10V
5000 12000
2000
6000
Output Voltage Swing
Slew Rate
RL ≥10kΩ RL ≥2kΩ RL ≥1kΩ
RL ≥2kΩ (Note 3)
± 13.5 ± 12.5 ± 12.0
0.1
± 14.0 ± 13.0 ± 12.5
0.3
± 13.5 ± 12.5 ± 12.0
0.1
± 14.0 ± 13.0 ± 12.5
0.3
Closed-Loop Bandwidth
AVCL =+1 (Note 3)
0.4
0.6
0.4
0.6
Open-Loop Output VO = 0, IO= 0
60
60
Resistance
Power Consumption
Offset Adjustment Range
VS =± 15V, No Load VS =± 3V, No Load
RP =20kΩ
50
60
3.5
4.5
±3
50
60
3.5
4.5
±3
AMSOP-77G Min Typ Max
50
100
0.4
Units
µV µV/Mo
0.3
2.8
nA
-0.2
1.2
2.8
nA
0.38
0.65
µVP-P
10.5
20.0
10.3
13.5 nV/√Hz
9.8
11.5
15
35
pAP-P
0.35
0.90
0.15
0.27 pA/√Hz
0.13
0.18
18.5
45
MΩ
200
GΩ
± 13
± 14
V
0.1
1.6
µV/V
0.7
3.0
2000
6000
± 13.5 ± 12.5 ± 12.0
0.1
0.4
± 14.0 ± 13.0 ± 12.5
0.3
0.6
µV/V V/mV
V V/µs MHz
60
Ω
50
60
mW
3.5
4.5
±3
mV
Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723
AMSOP-77
ELECTRICAL CHARACTERISTICS
Electrical Characteristics at VIN= ±15, 0°C ≤ TA ≤ +70°C unless otherwise specified.
Parameter
Conditions
AMSOP-77E
AMSOP-77F
Min Typ Max Min Typ Max
Input Offset Voltage
10
55
20
100
Average Input Offset Voltage Drift
(Note 3)
0.3
0.6
0.4
1.0
Input Offset Current
Average Input Offset Current Drift
(Note 5)
0.5
2.2
1.5
40
0.5
4.5
1.5
85
Input Bias Current
-0.2
2.4
4.0
-0.2
2.4
6.0
Average Input Bias (Note 5) Current Drift
8
40
15
60
Input Voltage Range
± 13.0 ± 1.