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

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

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.

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 H2
    • Device 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.

View more

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)
INA240-Q1 INA240 LMP8601 LMP8601-Q1
80     80     60     60    
-4     -4     -22     -22    
25     25     1000     1000    
0.05     0.05     2     2    
100
20
200
50    
100
20
200
50    
100
20
50    
100
20
50    
0.2     0.2     0.5     0.5    
10     10     20     20    
120     120     90     90    
400     400     60     60    
5.5     5.5     5.5     5.5    
2.7     2.7     3     3    
2.6     2.6     1.5     1.5    
1     1     1     1    
Bi-directional
Enhanced PWM Rejection
Low-side Capable    
Bi-directional
Enhanced PWM Rejection
Low-side Capable    
Bi-directional
Low-side Capable    
Bi-directional
Low-side Capable    
Automotive     Catalog     Catalog     Automotive    
-40 to 150
-40 to 125    
-40 to 125     -40 to 125     -40 to 125
-40 to 150    
SOIC | 8
TSSOP | 8    
SOIC | 8
TSSOP | 8    
SOIC | 8     SOIC | 8    
8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)
8TSSOP: 19 mm2: 6.4 x 3 (TSSOP | 8)    
8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)
8TSSOP: 19 mm2: 6.4 x 3 (TSSOP | 8)    
8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)     8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)    

INA240-Q1 Error Analysis

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