60-V, Bidirectional, Low- or High-Side, Voltage Output Current Sensing Amplifier - LMP8601

LMP8601 (ACTIVE)

60-V, Bidirectional, Low- or High-Side, Voltage Output Current Sensing Amplifier

 

Other gain values available

LMP8601: 20V/V | LMP8602: 50V/V | LMP8603: 100V/V

Automotive versions available

LMP8601-Q1: 20V/V | LMP8602-Q1: 50V/V | LMP8603-Q1: 100V/V

Description

The LMP8601, LMP8602, LMP8603 (LMP860x) and LMP8601-Q1, LMP8602-Q1, LMP8603-Q1 (LMP860x-Q1) devices are fixed-gain, precision current-sense amplifiers (also referred to as current-shunt monitors). The input common-mode voltage range is –22 V to +60 V when operating from a single 5-V supply, or –4 V to +27 V with a 3.3-V supply. The LMP860x and LMP860x-Q1 are ideal parts for unidirectional and bidirectional current sensing applications.

These devices have a precise gain of 20x (LPM8601, LPM8601-Q1), 50x (LPM8602, LPM8602-Q1), and 100x (LPM8603, LPM8603-Q1), and are adequate in most targeted applications to drive an ADC to full-scale value. The fixed gain is achieved in two separate stages: a preamplifier with a gain of 10x and an output stage buffer amplifier with a gain of 2x (LMP8601, LMP8601-Q1), 5x (LMP8602, LMP8602-Q1), or 10x (LMP8603, LMP8603-Q1). The path between the two stages is brought out on two pins to enable the option of an additional filter network or modifying the gain.

The offset input pin enables these devices for unidirectional or bidirectional single supply voltage current sensing.

The LMP860x-Q1 devices incorporate enhanced manufacturing and support processes for the automotive market and are compliant with the AEC-Q100 standard.

Features

  • Gain = 20x for LMP8601 and LMP8601-Q1
  • Gain = 50x for LMP8602 and LMP8602-Q1
  • Gain = 100x for LMP8603 and LMP8603-Q1
  • TCVOS: 10 µV/°C Maximum
  • CMRR: 90-dB Minimum
  • Input Offset Voltage: 1-mV Maximum
  • CMVR at VS = 3.3 V: –4 V to 27 V
  • CMVR at VS = 5 V: –22 V to 60 V
  • Single-Supply Bidirectional Operation
  • All Minimum and Maximum Limits 100% Tested
  • Q1 Devices Qualified for Automotive Applications
  • Q1 Devices ACE-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device Temperature Grade 0: –40°C to 150°C (LMP8601EDRQ1 Only)
    • Device HBM ESD Classification Level 2
      (3A on inputs)
    • Device CDM ESD Classification Level C6
    • Device MM ESD Classification Level M2

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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 (%)
CMRR (Min) (dB)
Bandwidth (kHz)
Supply Voltage (Max) (V)
Supply Voltage (Min) (V)
Iq (Max) (mA)
Features
Rating
Operating Temperature Range (C)
Package Group
Package Size: mm2:W x L (PKG)
Gain Error Drift (Max) (ppm/°C)
PSRR (Typ) (uV/V)
Specified Common Mode Voltage (V)
Specified Power Supply Voltage (V)
LMP8601
60   
-22   
1000   
2   
20
50
100   
0.5   
90   
60   
5.5   
3   
1.5   
Bi-directional
Low-side Capable   
Catalog   
-40 to 125   
SOIC   
8SOIC: 29 mm2: 6 x 4.9(SOIC)   
20   
5.6   
1.65   
3.3   

Other qualified versions of LMP8601

Version Part Number Definition
Automotive LMP8601-Q1 Q100 devices qualified for high-reliability automotive applications targeting zero defects

LMP8601 Error Analysis

0.001m ≤ 
 mOhm ≤ 100m
0.0001 ≤ 
A
A ≤ 100 
3 ≤ 
V ≤ 5.5
-22 ≤ 
V ≤ 60
-40 ≤ 
C ≤ 125