MAX9920ASA+T by Analog Devices

-20V to +75V Input Range, Precision Uni-/Bidirectional, Current-Sense Amplifiers


The MAX9918/MAX9919/MAX9920 are single-supply, high-accuracy current-sense amplifiers with a high input common-mode range that extends from -20V to +75V. These amplifiers are well suited for current monitoring of inductive loads such as motors and solenoids, where common-mode voltages can become negative due to inductive kickback, reverse-battery conditions, or transient events. The MAX9918/MAX9920 feature adjustable gain set by an external resistive-divider network. The MAX9919 features fixed gains of 45V/V (MAX9919F) and 90V/V (MAX9919N). The MAX9918/MAX9919/MAX9920 operate as unidirectional amplifiers when VREFIN = GND and as bidirectional amplifiers when VREFIN = VCC/2. The MAX9920 attenuates the input signal by a factor of 4 at the input level-shifting stage allowing the device to sense voltages up to 200mV (unidirectional operation) or ±100mV (bidirectional operation). The MAX9918/MAX9919/MAX9920 operate with a single 5V supply voltage, are fully specified over the -40°C to +125°C automotive temperature range, and are available in an 8-pin SOIC package.

Where to Buy

Prices starting from US$1.55

Distributor Stock
Logo for Farnell
Farnell
from US$1.55
1,695
in stock
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Logo for Newark Electronics
Newark Electronics
from US$1.72
1,695
in stock
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Logo for element14
element14
from US$1.56
1,695
in stock
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Features

Reduce Protective Clamping for High Inductive Kickback Voltage -20V to +75V Input Common-Mode Voltage Range
-20V to +75V Input Common-Mode Voltage Range
Supports Wide Range of Precision AC and DC Current Sensing Applications Uni- or Bidirectional Current Sensing 0.6% (max) Gain Accuracy Error 400µV (max) Input Offset Voltage 120kHz, -3dB Bandwidth (MAX9919N) Reference Input for Bidirectional OUT Rail-to-Rail Output
Uni- or Bidirectional Current Sensing
0.6% (max) Gain Accuracy Error
400µV (max) Input Offset Voltage
120kHz, -3dB Bandwidth (MAX9919N)
Reference Input for Bidirectional OUT
Rail-to-Rail Output
Saves Board Space 8-Pin SOIC Package Single-Supply Operation (4.5V to 5.5V)
8-Pin SOIC Package
Single-Supply Operation (4.5V to 5.5V)
AEC-Q100 Qualified (MAX9918ASA/V+, MAX9919FASA/V+, MAX9919NASA/V+, MAX9920ASA/V+ Only)

Specifications

VSENSE_FS (mV) (recomm.) 200
VOS @25°C (µV) (max) 1200
Output Format Voltage
CMVR (V) (min) -20
CMVR (V) (max) 75
VCC (V) (min) 4.5
VCC (V) (max) 5.5
ICC (µA) (typ) 1000
Bi-Dir. Curr. Sense Yes
Gain Adj.
Gain Accuracy @25°C (%) (max) 1
Oper. Temp. (°C) -40 to +125
Package/Pins SOIC (N)/8
BudgetaryPrice (See Notes) 1.26


MAX9920ASA+T Amplifiers & Comparators by Analog Devices

CURRENT SENSE AMPLIFIER 230KHZ HSOIC-8

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

No. of Amplifiers 1 Amplifier
Input Bias Current 175µA
Amplifier Case Style HSOIC
No. of Pins 8Pins
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Bandwidth 230kHz
Supply Voltage Min 4.5V
Supply Voltage Max 5.5V
Input Offset Voltage 480µV
CMRR 86dB
Product Range -
Automotive Qualification Standard -
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

Current Sense Amp, 230Khz, -40To125Deg C | Newark Electronics
CURRENT SENSE AMP, 230KHZ, -40TO125DEG C | element14

Frequently Asked Questions

Where can I find additional details, specifications and documents for a MAX9920ASA+T ?

Additional datasheets, footprints and schematics for MAX9920ASA+T are listed on our Part Details page. You can also find images and similar parts to MAX9920ASA+T on this page.

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Is the MAX9920ASA+T RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX9920ASA+T have stock available?

Authorised distributors including Newark Electronics, element14 and Farnell have stock available or on a lead time for MAX9920ASA+T .

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