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MAX4172EUA+T

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Maxim Integrated Current-Sensing Amplifiers, MSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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MAX4172EUA+T

Maxim Integrated · Current-Sensing Amplifiers · MSOP-8

MAX4172EUA+T from Maxim Integrated, in a MSOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 RS+ input Power connection to the external sense resistor; the '+' indicates the direction of current flow, and the sense voltage (VRS+ - VRS-) must stay within the 0 to 32V input range with a maximum differential of 150mV for specified accuracy (175mV typical maximum VSENSE).
2 RS- input Load-side connection for the external sense resistor; the '-' indicates the direction of current flow, and the input range is 0 to 32V.
3 N.C. unconnected No internal connection; leave open or connect to GND.
4 N.C. unconnected No internal connection; leave open or connect to GND.
5 GND power_in Ground reference for the device; the substrate is connected to GND.
6 OUT output Current output proportional to the sense voltage (VRS+ - VRS-); a 1kΩ resistor from OUT to ground gives 10V/V of sense voltage, and the output voltage must not exceed V+ - 1.2V.
7 PG output Open-collector power-good output; a low level indicates V+ is sufficient to power the MAX4172 and power-on transients have settled, with a V+ rising threshold of 2.77V and falling threshold of 2.67V (typical PG output low voltage 0.4V at 1.2mA sink).
8 V+ power_in Supply voltage input for the MAX4172, operating from 3V to 32V.

Key specifications

Parameter Value
Manufacturer Maxim Integrated
Package MSOP-8
Category Operational Amplifier/Comparator
Pins 8

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Operating Voltage Range V+ 3 32 V 2
Input Voltage Range VRS- 0 0 32 V 2
Operating Temperature Range (MAX4172E_A) TA -40 85 °C MAX4172E_A 2
Supply Current IV+ 0.8 1.6 mA IOUT = 0mA 2
Input Offset Voltage (MAX4172EUA) VOS -1.6 0.2 1.6 mV V+ = 12V, VRS+ = 12V 2
Positive Input Bias Current IRS+ 0 27 42.5 µA VRS+ > 2.0V, IOUT = 0mA 2
Positive Input Bias Current IRS+ -325 42.5 µA VRS+ ≤ 2.0V, IOUT = 0mA 2
Negative Input Bias Current IRS- 0 50 85 µA VRS+ > 2.0V 2
Negative Input Bias Current IRS- -650 85 µA VRS+ ≤ 2.0V 2
Maximum VSENSE Voltage VSENSE 150 175 mV 2
Low-Level Current Error (MAX4172EUA) -15 15 µA VSENSE = 6.25mV, V+ = 12V, VRS+ = 12V (Note 1) 2
Output Current Error (MAX4172EUA) -50 50 µA VSENSE = 100mV, V+ = 12V, VRS+ = 12V, TA = -40°C to 0°C 2
Output Current Error (MAX4172EUA) -15 15 µA VSENSE = 100mV, V+ = 12V, VRS+ = 12V, TA = 0°C to +105°C 2
Maximum Output Current IOUT 1.5 1.75 mA 3
Transconductance Gm 9.8 10 10.2 mA/V Gm = IOUT/(VRS+ - VRS-), VSENSE = 100mV, VRS+ > 2.0V, TA = 0°C to +105°C 3
Transconductance Gm 9.7 10 10.3 mA/V Gm = IOUT/(VRS+ - VRS-), VSENSE = 100mV, VRS+ > 2.0V, TA = -40°C to 0°C 3
OUT Power-Supply Rejection Ratio ΔIOUT/ΔV+ 0.2 µA/V 3V ≤ V+ ≤ 32V, VRS+ > 2.0V 2
OUT Common-Mode Rejection Ratio ΔIOUT/ΔVRS+ 0.03 µA/V 2.0V < VRS+ < 32V 2
PG Output Low Voltage VOL 0.4 V ISINK = 1.2mA, V+ = 2.9V, TA = +25°C 3
Leakage Current into PG 1 µA V+ = 2.5V, TA = +25°C 3
Power-Off Input Leakage Current (RS+, RS-) 0.1 1 µA V+ = 0V, VRS+ = VRS- = 32V 3
V+ Threshold for PG Output Low, rising V+ 2.77 V V+ rising (Note 2) 3
V+ Threshold for PG Output Low, falling V+ 2.67 V V+ falling (Note 2) 3
Absolute Maximum V+, RS+, RS-, PG V+, VRS+, VRS-, VPG -0.3 36 V 2
Absolute Maximum Differential Input Voltage VRS+ - VRS- -700 700 mV 2
Absolute Maximum Current into Any Pin -50 50 mA 2
Absolute Maximum OUT Voltage VOUT -0.3 V maximum is V+ + 0.3V 2
Storage Temperature Range TSTG -65 150 °C 2
Lead Temperature (soldering, 10s) 300 °C soldering, 10s 2
Soldering Temperature (reflow) 260 °C reflow 2

CAD (KiCad official)

  • Symbol: MAX4172EUA+T
  • Footprint: Package_SO:MSOP-8_3x3mm_P0.65mm
  • 3D model: MSOP-8 (KiCad packages3D, STEP)
  • 3D model files: max4172eua-t-etched.step / max4172eua-t-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); max4172eua-t.step / max4172eua-t.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Maxim Integrated datasheet (9 pp, sha256 331a39cb406ffc04, retrieved 2026-10-29, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF