MAX9939AUB+ by Analog Devices

SPI-Programmable Gain Amplifier (PGA) with Input VOS Trim and Output Op Amp

Status: Active
Series: MAX9939
RoHS: Unknown
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The MAX9939 is a general-purpose, differential-input programmable-gain amplifier (PGA) that is ideal for conditioning a variety of wide dynamic range signals such as those found in motor current-sense, medical instrumentation, and sonar data acquisition applications. It features SPI-programmable differential gains from 0.2V/V to 157V/V, input offset-voltage compensation, and an output amplifier that can be configured either as a high-order active filter or to provide a differential output. The PGA is optimized for high-signal bandwidth and its gain can be programmed to be 0.2V/V, 1V/V, 10V/V, 20V/V, 30V/V, 40V/V, 60V/V, 80V/V, 119V/V, and 157V/V. Precision resistor matching provides extremely low gain tempco and high CMRR. Although the MAX9939 operates from a single supply VCC between 2.9V to 5.5V, it can process signals both above and below ground due to the use of an input level-shifting amplifier stage. Furthermore, its inputs are protected to ±16V, allowing it to withstand fault conditions and signal overranges. The output amplifier is designed for high bandwidth and low-bias currents, making it ideal for use in multiple-feedback active filter topologies that offer much higher Qs and stopband attenuation than Sallen-Key architectures. The MAX9939 draws 3.4mA of quiescent supply current at 5V, and includes a software-programmable shutdown mode that reduces its supply current to only 13µA. The MAX9939 is available in a 10-pin µMAX® package and operates over the -40°C to +125°C automotive temperature range.

Prices starting from US$2.02


Distributor Starting From Stock
Logo for Farnell Farnell US$2.06
68
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Logo for element14 element14 US$2.02
66
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Logo for Newark Electronics Newark Electronics US$2.58
-
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Features

SPI-Programmable Gains: 0.2V/V to 157V/V
Extremely Low Gain Tempco
Integrated Amplifier for R/C Programmable Active Filter
Input Offset-Voltage Compensation
Input Protection to ±16V
13µA Software Shutdown Mode
-40°C to +125°C Operating Temperature Range
10-Pin µMAX Package

Specifications

Interface Type SPI
AV (V/V) 0.2 to 157
Gain Error (%) (max) 0.38
Gain Temp.- Coeff. (ppm/°C) (max) 17
VSUPPLY (V) (min) 2.9
VSUPPLY (V) (max) 5.5
Shutdown Mode Supply Current (µA) (typ) 13
Shutdown Mode Supply Current (µA) (max) 24
Supply Current (µA) (typ) 3400
Supply Current (µA) (max) 6700
Gain-BW Product (MHz) 2.15 to 279
Oper. Temp. (°C) -40 to +125
Package/Pins UMAX/10
BudgetaryPrice (See Notes) 1.29


MAX9939AUB+ Amplifiers & Comparators by Analog Devices

PROG GAIN AMP DUAL 2.15MHZ UMAX-10

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

Specifications

No. of Channels 2Channels
No. of Amplifiers 2 Amplifier, 2Amplifiers
Bandwidth 2.15MHz
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Supply Voltage Range 2.9V to 5.5V
Amplifier Case Style µMAX
No. of Pins 10Pins
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

SPI PROGRAMMABLE-GAIN OP AMP VOS UMAX10 | RS
PROG GAIN AMP, DUAL, 2.15MHZ, UMAX-10 | Farnell
Prog Gain Amp, Dual, 2.15Mhz, Umax-10 | Newark Electronics

Frequently Asked Questions

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Is the MAX9939AUB+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including RS, Farnell, element14 and Newark Electronics have stock available or on a lead time for MAX9939AUB+ .

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