INA180 26V current sense amplifier for cost-sensitive systems | TI.com

INA180 (ACTIVE) 26V current sense amplifier for cost-sensitive systems

 

Description

The INA180, INA2180, and INA4180 (INAx180) current sense amplifiers are designed for cost-optimized applications. These devices are part of a family of current-sense amplifiers (also called current-shunt monitors) that sense voltage drops across current-sense resistors at common-mode voltages from –0.2 V to +26 V, independent of the supply voltage. The INAx180 integrate a matched resistor gain network in four, fixed-gain device options: 20 V/V, 50 V/V, 100 V/V, or 200 V/V. This matched gain resistor network minimizes gain error and reduces the temperature drift.

All these devices operate from a single 2.7-V to 5.5-V power supply. The single-channel INA180 draws a maximum supply current of 260 µA; whereas, the dual-channel INA2180 draws a maximum supply current of 500 µA, and the quad channel draws a maximum supply current of 900 µA.

The INA180 is available in a 5-pin, SOT-23 package with two different pin configurations. The INA2180 is available in an 8-pin, VSSOP package. The INA4180 is available in a 14-pin, TSSOP package. All device options are specified over the extended operating temperature range of –40°C to +125°C.

Features

  • Common-mode range (VCM): –0.2 V to +26 V
  • High bandwidth: 350 kHz (A1 devices)
  • Offset voltage:
    • ±150 µV (max) at VCM = 0 V
    • ±500 µV (max) at VCM = 12 V
  • Output slew rate: 2 V/µs
  • Accuracy:
    • ±1% gain error (max)
    • 1-µV/°C offset drift (max)
  • Gain options:
    • 20 V/V (A1 devices)
    • 50 V/V (A2 devices)
    • 100 V/V (A3 devices)
    • 200 V/V (A4 devices)
  • Quiescent current: 260 µA max (INA180)

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INA180 Error Analysis

0.001m ≤ 
 mOhm ≤ 100m
0.0001 ≤ 
A
A ≤ 100 
2.7 ≤ 
V ≤ 5.5
-0.2 ≤ 
V ≤ 26
-40 ≤ 
C ≤ 125

Parametrics

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Part number Order 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 (#) Comparators (#) Features Rating Operating temperature range (C) Package Group Package size: mm2:W x L (PKG)
INA180 Order now 26     -0.2     150     0.2     100
20
200
50    
1     20     84     350
210
150
105    
5.5     2.7     0.3     1     0     Low-side Capable     Catalog     -40 to 125     SOT-23 | 5     5SOT-23: 5 mm2: 1.6 x 2.9 (SOT-23 | 5)    
INA181 Order now 26     -0.2     150     0.2     100
20
200
50    
1     20     84     350
210
150
105    
5.5     2.7     0.3     1     0     Bi-directional
Low-side Capable    
Catalog     -40 to 125     SOT-23 | 6     6SOT-23: 5 mm2: 1.6 x 2.9 (SOT-23 | 6)    
INA185 Order now 26     -0.2     55     0.2     100
20
200
50    
0.2     8     96     350
210
150
105    
5.5     2.7     0.3     1       Bi-directional
Low-side Capable    
Catalog     -40 to 125     SOT-5X3 | 6     6SOT-5X3: 2 mm2: 1.2 x 1.6 (SOT-5X3 | 6)    
INA199 Order now 26     -0.1     150     0.1     100
200
50