SGLS174J September   2003  – August 2018 INA138-Q1 , INA168-Q1

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Typical Application Circuit
  4. 4 Revision History
  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
    6. 6.6 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 Output Voltage Range
      2. 7.3.2 Bandwidth
    4. 7.4 Device Functional Modes
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Operation
    2. 8.2 Typical Applications
      1. 8.2.1 Buffering Output to Drive an ADC
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 Selecting RS and RL
        3. 8.2.1.3 Application Curve
      2. 8.2.2 Output Filter
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
        3. 8.2.2.3 Application Curve
      3. 8.2.3 Offsetting the Output Voltage
      4. 8.2.4 Bipolar Current Measurement
        1. 8.2.4.1 Application Curve
      5. 8.2.5 Bipolar Current Measurement Using Differential Input of an ADC
      6. 8.2.6 Multiplexed Measurement Using Logic Signal for Power
  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 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Related Links
    3. 11.3 Receiving Notification of Documentation Updates
    4. 11.4 Community Resources
    5. 11.5 Trademarks
    6. 11.6 Electrostatic Discharge Caution
    7. 11.7 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

6.5 Electrical Characteristics

at TA = −40°C to +125°C, V+ = 5 V, VIN+ = 12 V, and RL = 125 kΩ (unless otherwise noted)
PARAMETER TEST CONDITIONS INA138-Q1 INA168-Q1 UNIT
MIN TYP MAX MIN TYP MAX
INPUT
Full-scale sense voltage VSENSE = VIN+ – VIN− 100 500 100 500 mV
Common-mode rejection VIN+ = 2.7 V to 36 V, VSENSE = 50 mV 100 120 dB
VIN+ = 2.7 V to 60 V, VSENSE = 50 mV 100 120
Offset voltage(1) ±0.2 ±2 ±0.2 ±2 mV
Offset voltage vs temperature 1 1 μV/°C
Offset voltage vs power supply (V+) V+ = 2.7 V to 36 V, VSENSE = 50 mV 0.1 10 μV/V
V+ = 2.7 V to 60 V, VSENSE = 50 mV 0.1 10
Input bias current VIN+ = VIN− = 12 V 10 10 μA
OUTPUT
Transconductance VSENSE = 10 mV to 150 mV 194 206 194 206 μA/V
Transconductance versus temperature VSENSE = 100 mV 10 10 nA/°C
Nonlinearity error VSENSE = 10 mV to 150 mV ±0.01% ±0.2 % ±0.01% ±0.2 %
Total output error VSENSE = 100 mV ±0.5% ±3.2% ±0.5% ±3.2%
Output impedance 1 || 5 1 || 5 GΩ || pF
Voltage output swing to power supply (V+) (V+) – 0.8 (V+) – 1.2 (V+) – 0.8 (V+) – 1.2 V
Voltage output swing to common mode, VCM VCM – 0.5 VCM – 1.2 VCM – 0.5 VCM – 1.2 V
FREQUENCY RESPONSE
Bandwidth RL = 5 kΩ 800 800 kHz
RL = 125 kΩ 32 32
Settling time (0.1%) 5-V step, RL = 5 kΩ 1.8 1.8 μs
5-V step, RL = 125 kΩ 30 30
NOISE
Output-current noise density TA = 25°C 9 9 pA/√Hz
Total output-current noise BW = 100 kHz 3 3 nA RMS
POWER SUPPLY
Quiescent current VSENSE = 0 V, IO = 0 mA 25 60 25 60 μA
(1) Defined as the amount of input voltage, VSENSE, to drive the output to zero.