MAX191ACWG+ by Analog Devices

Low-Power, 12-Bit Sampling ADC with Internal Reference and Power-Down


The MAX191 is a monolithic, CMOS, 12-bit analog-to-digital converter (ADC) featuring differential inputs, track/hold (T/H), internal voltage reference, internal or external clock, and parallel or serial µP interface. The MAX191 has a 7.5µs conversion time, a 2µs acquisition time, and a guaranteed 100ksps sample rate. The MAX191 operates from a single +5V supply or from dual ±5V supplies, allowing ground-referenced bipolar input signals. The device features a logic power-down input, which reduces the 3mA VDD supply current to 50µA max, including the internal-reference current. Decoupling capacitors are the only external components needed for the power supply and reference. This ADC operates with either an external reference, or an internal reference that features an adjustment input for trimming system gain errors. The MAX191 provides three interface modes: two 8-bit parallel modes, and a serial interface mode that is compatible with SPI™, QSPI™, and MICROWIRE™ serial-interface standards.

Where to Buy

Prices starting from US$21.25

Distributor Stock
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Farnell
from US$30.82
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Analog Devices
from US$21.25
118
in stock
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element14
from US$27.65
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Newark Electronics
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Features

12-Bit Resolution, 1/2 LSB Linearity
+5V or ±5V Operation
Built-In Track/Hold
Internal Reference with Adjustment Capability
Low Power: 3mA Operating Mode 20µA Power-Down Mode
3mA Operating Mode
20µA Power-Down Mode
100ksps Tested Sampling Rate
Serial and 8-Bit Parallel µP Interface
24-Pin Narrow DIP and Wide SO Packages

Specifications

Resolution (bits) (ADC) 12
# Input Channels 1
Conv. Rate (ksps) (max) 100
Data Bus µP/8SPI
ADC Architecture SAR
Diff/S.E. Input Diff. Only
Internal VREF (V) (nominal) 4.096
External VREF (V) (min) 2.5
External VREF (V) (max) 5
Unipolar VIN (V) (max) 4.096
INL (±LSB) 1
Package/Pins PDIP/24SOIC (W)/24
BudgetaryPrice (See Notes) 13.95


MAX191ACWG+ - Integrated Circuits by Analog Devices

ADC SAR 12BIT 100KSPS WSOIC-24

Status: Unknown
Series: 12-Bit SAR ADCs
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Resolution (Bits) 12bit
Sampling Rate 100kSPS
Input Channel Type Differential Pseudo Differential Single Ended
Data Interface Parallel Serial
Supply Voltage Type Single Dual (+/-)
Supply Voltage Min 4.75V
Supply Voltage Max 5.25V
ADC / DAC Case Style WSOIC
No. of Pins 24Pins
Operating Temperature Min 0°C
Operating Temperature Max 70°C
Product Range 12-Bit SAR ADCs
Automotive Qualification Standard -
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

Low-Power, 12-Bit Sampling ADC | Analog Devices
ADC, SAR, 12BIT, 100KSPS, WSOIC-24 | Farnell
Adc, Sar, 12Bit, 100Ksps, Wsoic-24 | Newark Electronics

Frequently Asked Questions

Where can I find additional details, specifications and documents for a MAX191ACWG+ ?

Additional datasheets, footprints and schematics for MAX191ACWG+ are listed on our Part Details page. You can also find images and similar parts to MAX191ACWG+ on this page.

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Is the MAX191ACWG+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX191ACWG+ have stock available?

Authorised distributors including Analog Devices, element14, Farnell and Newark Electronics have stock available or on a lead time for MAX191ACWG+ .

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