ZHCSHO6 February   2018 XTR305

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      典型应用
  4. 4 修订历史记录
  5. 5 Pin Configuration and Functions
    1.     Pin 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
    5. 6.5  Electrical Characteristics: Voltage Output Mode
    6. 6.6  Electrical Characteristics: Current Output Mode
    7. 6.7  Electrical Characteristics: Operational Amplifier (OPA)
    8. 6.8  Electrical Characteristics: Instrumentation Amplifier (IA)
    9. 6.9  Electrical Characteristics: Current Monitor
    10. 6.10 Electrical Characteristics: Power and Digital
    11. 6.11 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagrams
    3. 7.3 Feature Description
      1. 7.3.1 Functional Features
      2. 7.3.2 Current Monitor
      3. 7.3.3 Error Flags
      4. 7.3.4 Power On/Off Glitch
    4. 7.4 Device Functional Modes
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1  Voltage Output Mode
        2. 8.2.2.2  Current Output Mode
        3. 8.2.2.3  Input Signal Connection
        4. 8.2.2.4  Externally-Configured Mode: OPA and IA
        5. 8.2.2.5  Driver Output Disable
        6. 8.2.2.6  Driving Capacitive Loads and Loop Compensation
        7. 8.2.2.7  Internal Current Sources, Switching Noise, and Settling Time
        8. 8.2.2.8  IA Structure, Voltage Monitor
        9. 8.2.2.9  Digital I/O and Ground Considerations
        10. 8.2.2.10 Output Protection
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
    3. 10.3 VQFN Package and Heat Sinking
    4. 10.4 Power Dissipation
  11. 11器件和文档支持
    1. 11.1 文档支持
      1. 11.1.1 相关文档
    2. 11.2 接收文档更新通知
    3. 11.3 社区资源
    4. 11.4 商标
    5. 11.5 静电放电警告
    6. 11.6 Glossary
  12. 12机械、封装和可订购信息

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

6.8 Electrical Characteristics: Instrumentation Amplifier (IA)

All specifications at TA = 25°C, VS = ±20 V, RIA = 2 kΩ, and RGAIN = 2 kΩ, unless otherwise noted. See Figure 37.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
OFFSET VOLTAGE
VOS Offset voltage, RTI IDRV = 0 A ±0.7 ±2.7 mV
dVOS/dT Offset voltage vs temperature TA = –40°C to 85°C ±2.4 ±10 μV/°C
PSRR Offset voltage vs power supply VS = ±5 V to ±22 V ±0.8 ±10 μV/V
INPUT VOLTAGE RANGE
VCM Input voltage range (V−) + 3 (V+) − 3 V
CMRR Common-mode rejection ratio RTI 100 130 dB
INPUT BIAS CURRENT
IB Input bias current ±20 ±35 nA
IOS Input offset current ±1 ±10 nA
INPUT IMPEDANCE
Differential 105 || 5 Ω || pF
Common-mode 105 || 5 Ω || pF
TRANSCONDUCTANCE (Gain)(3)
Transconductance error IAOUT = ±2.4 mA, (V−) + 3 V < VIAOUT< (V+) − 3 V ±0.04 ±0.1 %FS
Transconductance error vs temperature TA = –40°C to 85°C ±0.2 ppm/°C
Linearity error (V−) + 3 V < VIAOUT< (V+) − 3 V ±0.01 ±0.1 %FS
Input bias current to G1, G2 ±20 nA
Input offset current to G1, G2(1) ±1 nA
OUTPUT
Output swing to the rail IAOUT = ±2.4 mA (V−) + 3 (V+) − 3 V
Output impedance IAOUT = ±2.4 mA 600 mΩ
ILIMIT Short-circuit current M2 = High ±7.2 mA
M2 = Low ±4.5 mA
FREQUENCY RESPONSE
GBW Gain-bandwidth product G = 1, RGAIN = 10 kΩ, RIA = 5 kΩ 1 MHz
SR Slew rate G = 1, RGAIN = 10 kΩ, RIA = 5 kΩ 1 V/μs
Settling time(2), 0.1% IAOUT = ±40 μA, RGAIN = 10 kΩ,
RIA = 5 kΩ, CL = 100 pF		 6 μs
Overload recovery time, 50% RGAIN = 10 kΩ, RIA = 15 kΩ,
CL = 100 pF		 10 μs
(1) See typical characteristics curve (Figure 3).
(3) Use equation: IAOUT = 2 (IAIN+ − IAIN−) / RGAIN