SBOS737C January   2016  – March 2018 OPA197 , OPA2197 , OPA4197

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      OPA197 in a High-Voltage, Multiplexed, Data-Acquisition System
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin Functions: OPA197
    2.     Pin Functions: OPA2197 and OPA4197
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information: OPA197
    5. 6.5 Thermal Information: OPA2197
    6. 6.6 Thermal Information: OPA4197
    7. 6.7 Electrical Characteristics: VS = ±4 V to ±18 V (VS = 8 V to 36 V)
    8. 6.8 Electrical Characteristics: VS = ±2.25 V to ±4 V (VS = 4.5 V to 8 V)
    9. 6.9 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Input Protection Circuitry
      2. 7.3.2 EMI Rejection
      3. 7.3.3 Phase Reversal Protection
      4. 7.3.4 Thermal Protection
      5. 7.3.5 Capacitive Load and Stability
      6. 7.3.6 Common-Mode Voltage Range
      7. 7.3.7 Electrical Overstress
      8. 7.3.8 Overload Recovery
    4. 7.4 Device Functional Modes
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 16-Bit Precision Multiplexed Data-Acquisition System
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curve
      2. 8.2.2 Slew Rate Limit for Input Protection
      3. 8.2.3 Precision Reference Buffer
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Development Support
        1. 11.1.1.1 TINA-TI (Free Software Download)
        2. 11.1.1.2 TI Precision Designs
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Related Links
    4. 11.4 Receiving Notification of Documentation Updates
    5. 11.5 Community Resources
    6. 11.6 Trademarks
    7. 11.7 Electrostatic Discharge Caution
    8. 11.8 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

6.8 Electrical Characteristics: VS = ±2.25 V to ±4 V (VS = 4.5 V to 8 V)

at TA = 25°C, VCM = VOUT = VS / 2, and RLOAD = 10 kΩ connected to VS / 2 (unless otherwise noted)
PARAMETERTEST CONDITIONSMINTYPMAXUNIT
OFFSET VOLTAGE
VOS Input offset voltage VS = ±2.25 V, VCM = (V+) – 3 V ±5 ±100 µV
(V+) – 3.5 V < VCM < (V+) – 1.5 V See Common-Mode Voltage Range section
VS = ±3 V, VCM = (V+) – 1.5 V ±10 ±100 µV
dVOS/dT Input offset voltage drift VS = ±2.25 V, VCM = (V+) – 3 V TA = –40°C to +125°C ±0.5 ±2.5 µV/°C
VS = ±2.25 V, VCM = (V+) – 1.5 V ±0.8 ±4.5
PSRR Power-supply rejection ratio TA = –40°C to +125°C, VCM = VS / 2 – 0.75 V ±2 µV/V
INPUT BIAS CURRENT
IB Input bias current ±5 ±20 pA
TA = –40°C to +125°C ±5 nA
IOS Input offset current ±2 ±20 pA
TA = –40°C to +125°C ±2 nA
NOISE
En Input voltage noise (V–) – 0.1 V < VCM < (V+) – 3 V, f = 0.1 Hz to 10 Hz 1.30 µVPP
(V+) – 1.5 V < VCM < (V+) + 0.1 V, f = 0.1 Hz to 10 Hz 4
en Input voltage noise density (V–) – 0.1 V < VCM < (V+) – 3 V f = 100 Hz 10.5 nV/√Hz
f = 1 kHz 5.5
(V+) – 1.5 V < VCM < (V+) + 0.1 V f = 100 Hz 32
f = 1 kHz 12.5
in Input current noise density f = 1 kHz 1.5 fA/√Hz
INPUT VOLTAGE
VCM Common-mode voltage range (V–) – 0.1 (V+) + 0.1 V
CMRR Common-mode rejection ratio VS = ±2.25 V,
(V–) – 0.1 V < VCM < (V+) – 3 V		 90 110 dB
TA = –40°C to +125°C 88 104
VS = ±2.25 V,
(V+) – 1.5 V < VCM < (V+)		 94 120
TA = –40°C to +125°C 77 100
VS = ±2.25 V,
(V+) – 3 V < VCM < (V+) – 1.5 V		 See Typical Characteristics
INPUT IMPEDANCE
ZID Differential 100 || 1.6 MΩ || pF
ZIC Common-mode 1 || 6.4 1013Ω || pF
OPEN-LOOP GAIN
AOL Open-loop voltage gain VS = ±2.25 V,
(V–) + 0.6 V < VO < (V+) – 0.6 V,
RLOAD = 2 kΩ		 104 126 dB
TA = –40°C to +125°C 100 114
VS = ±2.25 V,
(V–) + 0.3 V < VO < (V+) – 0.3 V,
RLOAD = 10 kΩ		 104 134
TA = –40°C to +125°C 100 120
FREQUENCY RESPONSE
GBW Unity gain bandwidth 10 MHz
SR Slew rate G = 1, 1-V step 14 V/µs
ts Settling time To 0.01% VS = ±3 V, G = 1, 5-V step 1 µs
tOR Overload recovery time VIN× G = VS 200 ns
OUTPUT
VO Voltage output swing from rail Positive rail No load 5 25 mV
RLOAD = 10 kΩ 95 125
RLOAD = 2 kΩ 430 500
Negative rail No load 5 25
RLOAD = 10 kΩ 95 125
RLOAD = 2 kΩ 430 500
ISC Short-circuit current VS = ±2.25 V ±65 mA
CLOAD Capacitive load drive See Typical Characteristics
ZO Open-loop output impedance f = 1 MHz, IO = 0 A, see Figure 26 375 Ω
POWER SUPPLY
IQ Quiescent current per amplifier IO = 0 A 1 1.3 mA
TA = –40°C to +125°C 1.5
TEMPERATURE
Thermal protection(1) 140 °C
(1) For a detailed description of thermal protection, see the Thermal Protection section.