MAX1395

1.5V to 3.6V, 357ksps, 1-Channel True-Differential/2-Channel Single-Ended, 10-Bit, SAR ADCs

Ultra-Low Power and Supply Voltage Make These ADCs Ideal for Battery-Powered Applications

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Overview

357ksps 10-Bit Successive-Approximation Register (SAR) ADCs
Single True-Differential Analog Input Channel with Unipolar-/Bipolar-Selected Input (MAX1392)
Dual Single-Ended Input Channel with Channel-Selected Input (MAX1395)
±0.5 LSB INL, ±0.5 LSB DNL, No Missing Codes
±1 LSB Total Unadjusted Error
61dB SINAD at 85kHz Input Frequency
Single-Supply Voltage (+1.5V to +3.6V)
0.945mW at 350ksps, 1.8V
0.27mW at 100ksps, 1.8V
3.1µW at 1ksps, 1.8V
< 1µA Shutdown Current
External Reference (0.6V to V_DD)
AutoShutdown Between Conversions
SPI-/QSPI-/MICROWIRE-/DSP-Compatible, 3- or 4-Wire Serial Interface
Small (3mm x 3mm), 10-Pin TDFN

The MAX1392/MAX1395 micropower, serial-output, 10-bit, analog-to-digital converters (ADCs) operate with a single power supply from +1.5V to +3.6V. These ADCs feature automatic shutdown, fast wake-up, and a high-speed 3-wire interface. Power consumption is only 0.740mW (V_DD = +1.5V) at the maximum conversion rate of 357ksps. AutoShutdown™ between conversions reduces power consumption at slower throughput rates.

The MAX1392/MAX1395 require an external reference V_REF that has a wide range from 0.6V to V_DD. The MAX1392 provides one true-differential analog input that accepts signals ranging from 0 to V_REF (unipolar mode) or ±V_REF/2 (bipolar mode). The MAX1395 provides two single-ended inputs that accept signals ranging from 0 to V_REF. Analog conversion results are available through a 5MHz, 3-wire SPI™-/QSPI™-/MICROWIRE™-/digital signal processor (DSP)-compatible serial interface. Excellent dynamic performance, low voltage, low power, ease of use, and small package sizes make these converters ideal for portable battery-powered data-acquisition applications, and for other applications that demand low power consumption and minimal space.

The MAX1392/MAX1395 are available in a space-saving (3mm x 3mm) 10-pin TDFN package. The parts operate over the extended (-40°C to +85°C) temperature range.

Applications

Battery-Powered Instruments
Data Acquisition
Medical Instruments
Portable Datalogging
Process Control

Documentation

Data Sheet 1

MAX1392-MAX1395: 1.5V to 3.6V, 357ksps, 1-Channel True-Differential/2-Channel Single-Ended, 10-Bit, SAR ADCs Data Sheet (Rev.3) 01/05/2010

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Analog to Digital Converters (ADCs) 8
MAX1391		1.5V to 3.6V, 416ksps, 1-Channel True-Differential/2-Channel Single-Ended, 8-Bit, SAR ADCs
MAX1393		1.5V to 3.6V, 312.5ksps, 1-Channel True-Differential/2-Channel Single-Ended, 12-Bit, SAR ADCs
MAX1396		1.5V to 3.6V, 312.5ksps, 1-Channel True-Differential/2-Channel Single-Ended, 12-Bit, SAR ADCs
MAX1394		1.5V to 3.6V, 416ksps, 1-Channel True-Differential/2-Channel Single-Ended, 8-Bit, SAR ADCs

MAX11618	PRODUCTION	10-Bit, 300ksps ADCs with FIFO and Internal Reference
MAX159	LAST TIME BUY	+2.7V, Low-Power, 2-Channel, 108ksps, Serial 10-Bit ADCs in 8-Pin µMAX
MAX1085	PRODUCTION	400ksps/300ksps, Single-Supply, Low-Power, Serial 10-Bit ADCs with Internal Reference
MAX1088		150ksps, 10-Bit, 2-Channel Single-Ended, and 1-Channel True-Differential ADCs in SOT23 and TDFN

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