ZHCSNI6 march   2023 OPA928

ADVANCE INFORMATION  

  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.     Thermal Information
    5. 6.4 Electrical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Guard Buffer
      2. 7.3.2 Thermal Protection
      3. 7.3.3 Capacitive Load and Stability
      4. 7.3.4 EMI Rejection
      5. 7.3.5 Common-Mode Voltage Range
    4. 7.4 Device Functional Modes
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Contamination Considerations
      2. 8.1.2 Guarding Considerations
      3. 8.1.3 Humidity Considerations
      4. 8.1.4 Dielectric Relaxation
    2. 8.2 Typical Applications
      1. 8.2.1 High-Impedance (Hi-Z) Amplifier
        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 Transimpedance Amplifier
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
    3. 8.3 Power-Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Examples
  9. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Development Support
        1. 9.1.1.1 PSpice® for TI
        2. 9.1.1.2 TINA-TI™ 仿真软件（免费下载）
        3. 9.1.1.3 TI 参考设计
    2. 9.2 Documentation Support
      1. 9.2.1 Related Documentation
    3. 9.3 接收文档更新通知
    4. 9.4 支持资源
    5. 9.5 Trademarks
    6. 9.6 静电放电警告
    7. 9.7 术语表
  10. 10Mechanical, Packaging, and Orderable Information

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

6.4 Electrical Characteristics

at TA = 25°C, VS = 4.5 V to 16 V, VCM = VOUT = VS / 2, and RL = 10 kΩ connected to VS/2 (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
INPUT BIAS CURRENT
IB Input bias current ±1 ±20 fA
TA = –40°C to +85°C ±20
IOS Input offset current ±1 ±20 fA
TA = –40°C to +85°C ±20
OFFSET VOLTAGE
VOS Input offset voltage ±5 ±25 µV
TA = –40°C to +125°C ±8 ±75
VCM = (V+) – 1.5 V ±10 ±50
TA = –40°C to +125°C ±25 ±150
(V+) – 3 V < VCM < (V+) – 1.5 V See Typical Characteristics
dVOS/dT Input offset voltage drift TA = –40°C to +125°C   ±0.1 ±0.8 µV/°C
VCM = (V+) – 1.5 V ±0.5
PSRR Power-supply rejection ratio TA = –40°C to +125°C ±0.3 ±1.0 µV/V
NOISE
Input voltage noise f = 0.1 Hz to 10 Hz (V–) – 0.1 V < VCM < (V+) – 3 V 1.4 µVPP
(V+) – 1.5 V < VCM < (V+) + 0.1 V 7
en Input voltage noise density (V–) – 0.1 V < VCM < (V+) – 3 V f = 100 Hz 18 nV/√Hz
f = 1 kHz 15
(V+) – 1.5 V < VCM < (V+) + 0.1 V f = 100 Hz 53
f = 1 kHz 24
in Input current noise density f = 0.1 Hz 0.05 fA/√Hz
INPUT VOLTAGE
VCM Common-mode voltage (V–) – 0.1 (V+) + 0.1 V
CMRR Common-mode rejection ratio (V–) – 0.1 V < VCM < (V+) – 3 V 120 140 dB
TA = –40°C to +125°C 114 126
(V+) – 1.5 V < VCM < (V+) 96 120
TA = –40°C to +125°C 86 100
(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 (V–) + 0.6 V < VO < (V+) – 0.6 V,
RL = 2 kΩ		 124 134 dB
TA = –40°C to +125°C 114 126
(V–) + 0.3 V < VO < (V+) – 0.3 V,
RL = 10 kΩ		 126 140
TA = –40°C to +125°C 120 134
FREQUENCY RESPONSE
GBW Unity gain bandwidth 2.5 MHz
SR Slew rate Gain = 1, 10-V step Falling 7.5 V/µs
Rising 5.5
ts Settling time To 0.01%, CL = 20 pF Gain = 1, 2-V step 0.7 µs
Gain = 1, 5-V step 1
To 0.001%, CL = 20 pF Gain = 1, 2-V step 1.8
Gain = 1, 5-V step 3.7
tOR Overload recovery time VIN × gain = VS From overload to negative rail 0.4 µs
From overload to positive rail 1
THD+N Total harmonic distortion + noise Gain = 1, f = 1 kHz, VO = 3.5 VRMS 0.0012%
OUTPUT
VO Voltage output swing from rail Positive rail No load 5 15 mV
RL = 10 kΩ 50 110
RL = 2 kΩ 200 500
Negative rail No load 5 15
RL = 10 kΩ 50 110
RL = 2 kΩ 200 500
ISC Short-circuit current VS = ±18 V ±65 mA
CL Capacitive load drive See Typical Characteristics
ZO Open-loop output impedance f = 1 MHz, IO = 0 A 700 Ω
POWER SUPPLY
IQ Quiescent current per amplifier IO = 0 A 275 400 µA
TA = –40°C to +125°C 500
TEMPERATURE
Thermal protection 180 °C
Thermal hysteresis 30 °C
INTERNAL GUARD BUFFER
VOSG Guard input offset voltage ±5 ±25 µV
TA = –40°C to +125°C ±8 ±75
dVOSG/dT Guard input offset voltage drift TA = –40°C to +125°C ±0.1 ±0.8 µV/°C
VCM = (V+) – 1.5 V ±0.5
BW Bandwidth 2.5 MHz
Guard output impedance IO = 0 A 1 kΩ