The MAX1157/MAX1159/MAX1175 14-bit, low-power, successive-approximation analog-to-digital converters (ADCs) feature automatic power-down, a factory-trimmed internal clock, and a 14-bit wide parallel interface. The devices operate from a single +4.75V to +5.25V analog supply and feature a separate digital supply input for direct interface with +2.7V to +5.25V digital logic.

The MAX1157 accepts an analog input voltage range from 0 to +10V while the MAX1159 accepts a bipolar analog input voltage range of ±10V. The MAX1175 accepts a bipolar analog input voltage range of ±5V. All devices consume only 23mW at a sampling rate of 135ksps when using an external reference and 29mW when using the internal +4.096V reference. AutoShutdown™ reduces supply current to 0.4mA at 10ksps. The MAX1157/MAX1159/MAX1175 are ideal for high-performance, battery-powered data-acquisition applications. Excellent AC performance (THD = -100dB) and DC accuracy (±1 LSB INL) make the MAX1157/ MAX1159/MAX1175 ideal for industrial process control, instrumentation, and medical applications.

The MAX1157/MAX1159/MAX1175 are available in a 28-pin TSSOP package and are fully specified over the -40°C to +85°C extended temperature range and the 0°C to +70°C commercial temperature range.

MAX1157, MAX1159, MAX1175: Typical Application Circuit

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Key Features

Analog Input Voltage Range ±10V, ±5V, or 0 to 10V
14-Bit Wide Parallel Interface
Single +4.75V to +5.25V Analog Supply Voltage
Interfaces with +2.7V to +5.25V Digital Logic
±1 LSB INL (max)
±1 LSB DNL (max)
Low Supply Current (MAX1159)
- 5.3mA (External Reference)
- 6.2mA (Internal Reference)
- 5µA AutoShutdown Mode
Small Footprint
- 28-Pin TSSOP Package

Applications/Uses

Data Acquisition Systems
I/O Modules
Industrial Process Controls
Precision Instrumentation
Temperature Sensing and Monitoring

Parametric Specs

Part Number

Resolution
(bits)

Input Chan.

Conv. Rate
(ksps)

ADC Architecture

Data Bus

Diff/S.E. Input

Internal V_REF
(V)

External V_REF
(V)

Unipolar V_IN
(V)

SNR
(dB)

THD
(dB)

INL
(±LSB)

Package/Pins

Budgetary
Price

ADC

max

nominal

min

max

See Notes

MAX1157

135

SAR

µP/14

S.E. Only

4.096

3.8

4.2

-100

TSSOP/28

$6.07 @500

See All Precision ADCs (< 5Msps) (443)

Pricing Notes:

This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Design Resources

MAX1179EVKIT: Evaluation Kit for the MAX1156, MAX1157, MAX1158, MAX1159, MAX1174, MAX1175, MAX1177, MAX1179, MAX1187, and MAX1189

Technical Documents

App Note 1948 Analysis of ADC System Distortion Caused by Source Resistance

Quality and Environmental Data

Request Reliability Report for: MAX1159
Lead-Free Package Tin (Sn) Whisker Reports

Quality And Environmental

Device	Fab Process	Technology	Sample size	Rejects	FIT at 25°C	FIT at 55°C

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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