ZHCSHU3A March   2018  – January 2021 OPA197-Q1 , OPA2197-Q1 , OPA4197-Q1

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  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-Q1
    5. 6.5 Thermal Information: OPA2197-Q1
    6. 6.6 Thermal Information: OPA4197-Q1
    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 Examples
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Development Support
        1. 11.1.1.1 TINA-TI™ Simulation Software (Free Download)
        2. 11.1.1.2 TI Precision Designs
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 接收文档更新通知
    4. 11.4 支持资源
    5. 11.5 Trademarks
    6. 11.6 静电放电警告
    7. 11.7 术语表
  12. 12Mechanical, Packaging, and Orderable Information

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订购信息

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 RL = 10 kΩ connected to VS / 2 (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
OFFSET VOLTAGE
VOS Input offset voltage VCM = (V+) – 3 V ±5 ±250 µV
TA = 0°C to 85°C ±8 ±350
TA = –40°C to +125°C ±10 ±400
(V+) – 3.5 V < VCM < (V+) – 1.5 V See Section 7.3.6
VCM = (V+) – 1.5 V ±10 ±250
TA = 0°C to 85°C ±25 ±350
TA = –40°C to +125°C ±50 ±500
dVOS/dT Input offset voltage drift VCM = (V+) – 3 V TA = –40°C to +125°C ±0.5 ±2.5 µV/°C
dVOS/dT Input offset voltage drift VCM = (V+) – 1.5 V ±0.8 ±4.5
PSRR Power-supply rejection ratio TA = –40°C to +125°C ±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 1.3 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
(V–) – 0.1 V < VCM < (V+) – 3 V		 94 110 dB
TA = –40°C to +125°C 90 104
(V+) – 1.5 V < VCM < (V+) 100 120
TA = –40°C to +125°C 84 100
(V+) – 3 V < VCM < (V+) – 1.5 V See Section 6.9
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 (V–) + 0.6 V < VO < (V+) – 0.6 V,
RL = 2 kΩ		 110 120 dB
TA = –40°C to +125°C 100 114

(V–) + 0.3 V < VO < (V+) – 0.3 V,
RL = 10 kΩ		 110 126
TA = –40°C to +125°C 110 120 dB
FREQUENCY RESPONSE
GBW Unity gain bandwidth 10 MHz
SR Slew rate G = 1, 5-V step 20 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
Crosstalk OPA4197-Q1 at dc 150 dB
OPA4197-Q1, f = 100 kHz 130 dB
OUTPUT
VO Voltage output swing from rail Positive rail No load 5 15 mV
RL = 10 kΩ 95 110
RL = 2 kΩ 430 500
Negative rail No load 5 15
RL = 10 kΩ 95 110
RL = 2 kΩ 430 500
ISC Short-circuit current ±65 mA
CLOAD Capacitive load drive See Section 6.9
ZO Open-loop output impedance f = 1 MHz, IO = 0 A; see Figure 6-29 375 Ω
POWER SUPPLY
IQ Quiescent current per amplifier IO = 0 A 1 1.2 mA
TA = –40°C to +125°C 1.5
TEMPERATURE
Thermal protection 140 °C
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