INA190-Q1 AEC-Q100 40V, bi-dir, low-/high-side, zero-drift, voltage output CSA w/low bias current and enable | TI.com

INA190-Q1
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AEC-Q100 40V, bi-dir, low-/high-side, zero-drift, voltage output CSA w/low bias current and enable

 

Description

The INA190-Q1 is an automotive, low-power, voltage-output, current-shunt monitor (also called a current-sense amplifier). This device is commonly used for monitoring systems directly connected to an automotive 12-V battery. The INA190-Q1 can sense drops across shunts at common-mode voltages from –0.2 V to +40 V, independent of the supply voltage. In addition, the input pins have an absolute maximum voltage of 42 V.

The low input bias current of the device permits the use of larger current-sense resistors, thus providing accurate current measurements in the microamp range. The low offset voltage of the zero-drift architecture extends the dynamic range of the current measurement. This feature allows for smaller sense resistors with lower power loss, while still providing accurate current measurements.

The INA190-Q1 operates from a single 1.7-V to 5.5-V power supply, and draws a maximum of 65 µA of supply current. Five fixed gain options are available: 25 V/V, 50 V/V, 100 V/V, 200 V/V, or 500 V/V. The device is specified over the operating temperature range of –40°C to +125°C, and offered in an SC70 package.

Features

  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Low input bias currents: 500 pA (typ)
    (enables microamp current measurement)
  • Low power:
    • Low supply voltage, VS: 1.7 V to 5.5 V
    • Low quiescent current: 50 µA at 25°C (typ)
  • Accuracy:
    • Gain error: ±0.2% (A1 device)
    • Gain drift: 5 ppm/°C (max)
    • Offset voltage, VOS: ±15 µV (max)
    • Offset drift: 0.13 µV/°C (max)
  • Wide common-mode voltage: –0.2 V to +40 V with survivability up to 42 V
  • Bidirectional current sensing capability
  • Gain options:
    • INA190A1-Q1: 25 V/V
    • INA190A2-Q1: 50 V/V
    • INA190A3-Q1: 100 V/V
    • INA190A4-Q1: 200 V/V
    • INA190A5-Q1: 500 V/V

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INA190-Q1 Error Analysis guide
0.001m ≤ 
 mOhm ≤ 100m
0.0001 ≤ 
A
A ≤ 100 
1.7 ≤ 
V ≤ 5.5
-0.2 ≤ 
V ≤ 40
-40 ≤ 
C ≤ 125
X Scale:

Parametrics

Compare all products in Current sense amplifiers analog output Email Download to Excel
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)
INA190-Q1 Order now 40     -0.2     15     0.01     100
200
25
50
500    
0.2
0.3
0.4    
7     132     45
37
35
32
27    
5.5     1.7     0.09     1     0     Bi-directional
Low-side Capable    
Automotive     -40 to 125     SC70 | 6     6SC70: 4 mm2: 2.1 x 2 (SC70 | 6)    
INA186-Q1 Order now 40     -0.2     50     0.05     100
200
25
50
500    
0.9     10     120     45
37
35
32
27    
5.5     1.7     0.09     1       Bi-directional
Low-side Capable    
Automotive     -40 to 125     SC70 | 6     6SC70: 4 mm2: 2.1 x 2 (SC70 | 6)    
INA199-Q1 Order now 26     -0.3     150     0.1     100
200
50    
1.5
1    
10     100     80
30
14    
26     2.7     0.115     1     0     Bi-directional
Low-side Capable    
Automotive     -40 to 125     SC70 | 6     6SC70: 4 mm2: 2.1 x 2 (SC70 | 6)    
INA210-Q1 Order now 26     -0.3     35
60
100