MAX44245:36V, Precision, Low-Power, 90µA, Single/Quad/Dual Op Amps

Precision, Low-Power Performance in High-Voltage Applications

The MAX44244/MAX44245/MAX44248 family of parts provide ultra-precision, low-noise, zero-drift single/quad/ dual operational amplifiers featuring very low-power operation with a wide supply range. The devices incorporate a patented auto-zero circuit that constantly measures and compensates the input offset to eliminate drift over time and temperature as well as the effect of 1/f noise. These devices also feature integrated EMI filters to reduce high-frequency signal demodulation on the output. The op amps operate from either a single 2.7V to 36V supply or dual ±1.35V to ±18V supply. The devices are unity-gain stable with a 1MHz gain-bandwidth product and a low 90µA supply current per amplifier. The low offset and noise specifications and high supply range make the devices ideal for sensor interfaces and transmitters. The devices are available in µMAX®, SO, SOT23, and TSSOP packages and are specified over the -40°C to +125°C automotive operating temperature range.

Key Features
  • Reduces Power for Sensitive Precision Applications
    • Low 90µA Quiescent Current per Amplifier
  • Eliminates the Cost of Calibration with Increased Accuracy with Maxim’s Patented Autozero Circuitry
    • Very Low Input Voltage Offset 7.5µV (max)
    • Low 30nV/NC Offset Drift (max)
  • Low Noise Ideal for Sensor Interfaces and Transmitters
    • 50nV/√Hz at 1kHz
    • 0.5µVP-P from 0.1Hz to 10Hz
  • 1MHz Gain-Bandwidth Product
    • EMI Suppression Circuitry
  • Rail-to-Rail Output
  • Wide Supply for High-Voltage Front Ends
    • 2.7V to 36V Supply Range
  • µMAX, SO, SOT23, TSSOP Packages
MAX44244: Typical Operating Circuit
MAX44244: Typical Operating Circuit
  • 4-20mA and 0 to 10V Transmitters
  • PLC Analog I/O Modules
  • Portable Medical Devices
  • Sensors Interfaces
  • Weight Scales
titleDownload file
MAX44244-MAX44248 Data SheetMAX44244-MAX44248.pdf
Part NumberAmps.Rail to RailVSUPPLY (Total)
ICC per Amp.
Low Input Bias CMOS InputsInput IBIAS
Unity Gain BW
Slew Rate
minmaxtypmaxtyptypmaxtyptyp<See Notes
MAX442441Output Only2.7361007.5130148Yes0.310.750µMAX/8
$1.32 @1k
$3.61 @1k
$1.48 @1k
Design kits & evaluation modules
Quality and Environmental Data
Related Products
  • MAX9618:High-Efficiency, 1.5MHz Op Amps with RRIO
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX44245ASD+ActiveSOIC(N),;14 pin;54.3 mm²-40°C to +125°CLead Free
MAX44245ASD+TActiveSOIC(N),;14 pin;54.3 mm²-40°C to +125°CLead Free
MAX44245AUD+ActiveMAX44267AUD+TSSOP,;14 pin;33.4 mm²-40°C to +125°CLead Free
MAX44245AUD+TActiveTSSOP,;14 pin;33.4 mm²-40°C to +125°CLead Free
MAX44244-MAX44248.pdf MAX44248
RTD Measurement System Design Essentials MAX14932
Passive Components Aren’t Really So Passive (Part 3): Printed Circuit Boards MAX44280
Passive Components Aren’t Really So Passive (Part 2): Resistors MAX44280
MAX44245.pdf MAX44245