MAX9923TEUB+ by Analog Devices

Ultra-Precision, High-Side Current-Sense Amplifiers

Status: Active
Series: MAX9923
RoHS: Unknown
View Datasheet Manufacturer Site View Pricing & Stock

The MAX9922/MAX9923 ultra-precision, high-side current-sense amplifiers feature ultra-low offset voltage (VOS) of 25µV (max) and laser-trimmed gain accuracy better than 0.5%. The combination of low VOS and high-gain accuracy allows precise current measurements even at very small sense voltages. The MAX9922/MAX9923 are capable of both unidirectional and bidirectional operation. For unidirectional operation, connect REF to GND. For bidirectional operation, connect REF to VDD/2. The MAX9922 has adjustable gain set with two external resistors. The MAX9923T/MAX9923H/MAX9923F use an internal laser-trimmed resistor for fixed gain of 25V/V, 100V/V, and 250V/V, respectively. The devices operate from a +2.85V to +5.5V single supply, independent of the input common-mode voltage, and draw only 700µA operating supply current and less than 1µA in shutdown. The +1.9V to +28V current-sense input common-mode voltage range makes the MAX9922/MAX9923 ideal for current monitoring in applications where high accuracy, large common-mode measurement range, and minimum full-scale VSENSE voltage is critical. The MAX9922/MAX9923 use a spread-spectrum autozeroing technique that constantly measures and cancels the input offset voltage, eliminating drift over time and temperature, and the effect of 1/f noise. This, in conjunction with the indirect current-feedback technique, achieves less than 25µV (max) offset voltage. The MAX9922/MAX9923 are available in a small 10-pin µMAX® package and are specified over the -40°C to +85°C extended temperature range.

Prices starting from US$2.55


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Logo for Newark Electronics Newark Electronics US$3.30
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Logo for element14 element14 US$2.67
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Features

Ultra-Precision VOS Over Temperature MAX9922: ±10µV (max) MAX9923T: ±25µV (max) MAX9923H: ±20µV (max) MAX9923F: ±10µV (max)
MAX9922: ±10µV (max)
MAX9923T: ±25µV (max)
MAX9923H: ±20µV (max)
MAX9923F: ±10µV (max)
±0.5% (max) Full-Scale Gain Accuracy
Bidirectional or Unidirectional ISENSE
Multiple Gains Available Adjustable (MAX9922) +25V/V (MAX9923T) +100V/V (MAX9923H) +250V/V (MAX9923F)
Adjustable (MAX9922)
+25V/V (MAX9923T)
+100V/V (MAX9923H)
+250V/V (MAX9923F)
1.9V to 28V Input Common-Mode Voltage, Independent of VDD
Supply Voltage: +2.85V to +5.5V
700µA Supply Current, 1µA Shutdown Current
Extended Temperature Range (-40°C to +85°C)
Available in Space-Saving 10-Pin µMAX

Specifications

VSENSE_FS (mV) (recomm.) +/-150
VOS @25°C (µV) (max) 10
Output Format Voltage
CMVR (V) (min) 1.9
CMVR (V) (max) 28
VCC (V) (min) 2.85
VCC (V) (max) 5.5
ICC (µA) (typ) 700
Bi-Dir. Curr. Sense Yes
Gain 100 V/V25 V/V250 V/V
Gain Accuracy @25°C (%) (max) 0.3
Oper. Temp. (°C) -40 to +85
Package/Pins UMAX/10
BudgetaryPrice (See Notes) 1.68


MAX9923TEUB+ Amplifiers & Comparators by Analog Devices

CURRENT SENSE AMP 50KHZ UMAX-10

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

Specifications

No. of Amplifiers 1 Amplifier, 1Amplifiers
Input Bias Current 1pA
Amplifier Case Style µMAX
No. of Pins 10Pins
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Bandwidth 50kHz
Supply Voltage Min 2.85V
Supply Voltage Max 5.5V
Input Offset Voltage 0.2µV
CMRR 140dB
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

Current Sense Amp, 50Khz, Umax-10 | Newark Electronics
CURRENT SENSE AMP, 50KHZ, UMAX-10 | element14

Frequently Asked Questions

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Is the MAX9923TEUB+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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