The MAX1065/MAX1066 14-bit, low-power successive approximation analog-to-digital converters (ADCs) feature automatic power-down, a factory-trimmed internal clock, and a high-speed, 14-bit-wide (MAX1065) or byte-wide (MAX1066) parallel interface. The devices operate from a single 4.75V to 5.25V analog supply and a 2.7V to 5.25V digital supply.

The MAX1065/MAX1066 use an internal 4.096V reference or an external reference. The MAX1065/MAX1066 consume only 1.8mA at a sampling rate of 165ksps with external reference and 2.7mA with internal reference. AutoShutdown™ reduces supply current to 0.1mA at 10ksps.

The MAX1065/MAX1066 are ideal for high-performance, battery-powered, data-acquisition applications. Excellent dynamic performance and low-power consumption in a small package make the MAX1065/MAX1066 the best choice for circuits with demanding power consumption and space requirements.

The 14-bit-wide MAX1065 is available in a 28-pin TSSOP package, and the byte-wide MAX1066 is available in a 20-pin TSSOP package. Both devices are available in either the 0°C to +70°C commercial, or the -40°C to +85°C extended temperature range.

MAX1065, MAX1066: Typical Operating Circuit

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Key Features

14-Bit-Wide (MAX1065) and Byte-Wide (MAX1066) Parallel Interface
High Speed: 165ksps Sample Rate
Accurate: ±1 LSB DNL (max), ±1 LSB INL (max)
4.096V, 35ppm/°C Internal Reference
External Reference Range 3.8V to 5.25V
Single 4.75V to 5.25V Analog Supply Voltage
2.7V to 5.25V Digital Supply Voltage
Low Supply Current
- 1.8mA (External Reference)
- 2.7mA (Internal Reference)
- 0.1mA AutoShutdown Mode (10ksps, External Reference)
Small Footprint
- 28-Pin TSSOP Package (14-Bit Wide)
- 20-Pin TSSOP Package (Byte Wide)

Applications/Uses

Accelerometer Measurements
Cable/Harness Tester
Data Acquisition
Digital Signal Processing (DSP)
I/O Boards
Industrial Process Controls
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

MAX1065

165

SAR

µP/16

S.E. Only

4.096

3.8

4.096

-99

TSSOP/28

$7.28 @500

MAX1066

µP/8

TSSOP/20

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

Technical Documents

Tutorial 1080 Understanding SAR ADCs: Their Architecture and Comparison with Other ADCs

Quality and Environmental Data

Request Reliability Report for: MAX1066
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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