INA271A-Q1 AEC-Q100, 80V, Low-/High-side, High-Speed, Voltage Output Current Sense Amplifier | TI.com

INA271A-Q1 (ACTIVE)

AEC-Q100, 80V, Low-/High-side, High-Speed, Voltage Output Current Sense Amplifier

 

Recommended alternative parts

  • INA282-Q1  -  The INA282 is a higher-precision device.

Other gain values available

INA270A-Q1: 14V/V | INA271A-Q1: 20V/V |

Commercial versions available

INA270: 14V/V | INA271: 20V/V |

Description

The INA270A-Q1 and INA271A-Q1 (INA27xA-Q1) family of current-shunt monitors with voltage output can sense voltage drops across current shunts at common-mode voltages from –16 V to +80 V, independent of the supply voltage. The INA27xA-Q1 pinouts readily enable filtering.

The INA27xA-Q1 devices are available with two output voltage scales: 14 V/V and 20 V/V. The 130-kHz bandwidth simplifies use in current-control loops.

The INA27xA-Q1 operates from a single 2.7-V to 18-V supply, drawing a maximum of 900 µA of supply current. They are specified over the extended operating temperature range of –40°C to +125°C and are offered in an SOIC-8 package.

Features

  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C6
  • Pinout Optimized for External Filtering
  • Wide Common-Mode Range: –16 V to +80 V
  • Accuracy:
    • CMRR: 120 dB
    • ±2.5-mV Offset (Maximum)
    • ±1% Gain Error (Maximum)
    • 20-µV/°C Offset Drift (Maximum)
    • 55-ppm/°C Gain Drift (Maximum)
  • Bandwidth: Up to 130 kHz
  • Two Gain Options Available:
    • 14 V/V (INA270A-Q1)
    • 20 V/V (INA271A-Q1)
  • Quiescent Current: 900 µA (Maximum)
  • Power Supply: 2.7 V to 18 V
  • Packages: SOIC-8

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Parametrics Compare all products in Current sense amplifiers analog output

 
Common mode voltage (Max) (V)
Common mode voltage (Min) (V)
Input offset (+/-) (Max) (uV)
Input offset drift (+/-) (Typ) (uV/C)
Gain (V/V)
Gain error (%)
Gain error drift (+/-) (Max) (ppm/°C)
CMRR (Min) (dB)
Bandwidth (kHz)
Supply Voltage (Max) (V)
Supply Voltage (Min) (V)
Iq (Max) (mA)
Number of channels (#)
Features
Rating
Operating temperature range (C)
Package Group
Package size: mm2:W x L (PKG)
INA270A-Q1
80    
-16    
3000    
2.5    
14
20    
2    
50    
100    
130    
18    
2.7    
0.95    
1    
Low-side Capable    
Automotive    
-40 to 125    
SOIC | 8    
8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)    

Design tool

INA271A-Q1 Error Analysis

0.001m ≤ 
 mOhm ≤ 100m
0.0001 ≤ 
A
A ≤ 100 
2.7 ≤ 
V ≤ 36
0 ≤ 
V ≤ 36
-40 ≤ 
C ≤ 125