INA240-Q1 AEC-Q100, 80V, Low-/High-Side, Bi-Directional, Zero-Drift, CSA w/Enhanced PWM Rejection | TI.com

INA240-Q1 (ACTIVE) AEC-Q100, 80V, Low-/High-Side, Bi-Directional, Zero-Drift, CSA w/Enhanced PWM Rejection

 

Description

The INA240-Q1 device is an automotive-qualified, voltage-output, current-sense amplifier with enhanced PWM rejection that can sense drops across shunt resistors over a wide common-mode voltage range from –4 V to 80 V, independent of the supply voltage. The negative common-mode voltage allows the device to operate below ground, accommodating the flyback period of typical solenoid applications. Enhanced PWM rejection provides high levels of suppression for large common-mode transients (ΔV/Δt) in systems that use pulse width modulation (PWM) signals (such as motor drives and solenoid control systems). This feature allows for accurate current measurements without large transients and associated recovery ripple on the output voltage.

This device operates from a single 2.7-V to 5.5-V power supply, drawing a maximum of 2.4 mA of supply current. Four fixed gains are available: 20 V/V, 50 V/V, 100 V/V, and 200 V/V. The low offset of the zero-drift architecture enables current sensing with maximum drops across the shunt as low as 10-mV full-scale. Grade 1 versions are specified over the extended operating temperature range (–40°C to +125°C) and are offered in an 8-pin TSSOP and 8-pin SOIC packages. Grade 0 versions are specified over the extended operating temperature range (–40°C to +150°C) and are offered in an 8-pin SOIC package.

Features

  • AEC-Q100 Qualified for Automotive Applications
    • Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
    • Temperature Grade 0: –40°C to +150°C Ambient Operating Temperature Range
    • HBM ESD Classification Level H2
    • CDM ESD Classification Level C5
  • Enhanced PWM Rejection
  • Excellent CMRR:
    • 132-dB DC CMRR
    • 93-dB AC CMRR at 50 kHz
  • Wide Common-Mode Range: –4 V to 80 V
  • Accuracy:
    • Gain Error: 0.20% (Maximum) With 2.5 ppm/°C (Maximum Drift)
    • Offset Voltage: ±25 µV (Maximum) With 250 nV/°C (Maximum Drift)
  • Available Gains:
    • INA240A1-Q1: 20 V/V
    • INA240A2-Q1: 50 V/V
    • INA240A3-Q1: 100 V/V
    • INA240A4-Q1: 200 V/V

All trademarks are the property of their respective owners.

INA240-Q1 Error Analysis

0.001m ≤ 
 mOhm ≤ 100m
0.0001 ≤ 
A
A ≤ 100 
2.7 ≤ 
V ≤ 5.5
-4 ≤ 
V ≤ 80
-40 ≤ 
C ≤ 125

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)
INA240-Q1 Order now 80     -4     25     0.05     100
20
200
50    
0.2     10     120     400     5.5     2.7     2.6     1     0     Bi-directional
Enhanced PWM Rejection
Low-side Capable    
Automotive     -40 to 150
-40 to 125    
SOIC | 8
TSSOP | 8    
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)
8TSSOP: 19 mm2: 6.4 x 3 (TSSOP | 8)    
INA240 Order now 80     -4     25     0.05     100
20
200
50    
0.2     10     120     400     5.5     2.7     2.6     1     0     Bi-directional
Enhanced PWM Rejection
Low-side Capable    
  -40 to 125     SOIC | 8
TSSOP | 8    
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)
8TSSOP: 19 mm2: 6.4 x 3 (TSSOP | 8)    
INA250-Q1 Order now 36     0     100mA
50mA
30mA
20mA    
250 A/C     2000mV/A
200mV/A
500mV/A
800mV/A    
0.3     45     100     50     36     2.7     0.35     1     0     Bi-directional
Integrated Shunt
Low-side Capable    
Automotive     -40 to 125     TSSOP | 16     16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)    
LMP8601 Order now 60     -22