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MAX1395MTB

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

Maxim Integrated 

19-3709; Rev 0; 5/05

1.5V to 3.6V, 357ksps, 1-Channel True-Differential/

2-Channel Single-Ended, 10-Bit, SAR ADCs

General Description

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 (VDD = +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

VREF that has a wide range from 0.6V to VDD. The

MAX1392 provides one true-differential analog input

that accepts signals ranging from 0 to VREF (unipolar

mode) or ±VREF/2 (bipolar mode). The MAX1395 pro-

vides two single-ended inputs that accept signals rang-

ing from 0 to VREF. Analog conversion results are

available through a 5MHz, 3-wire SPI™-/QSPI™-

/MICROWIRE™-/digital signal processor (DSP)-compat-

ible serial interface. Excellent dynamic performance,

low voltage, low power, ease of use, and small pack-

age sizes make these converters ideal for portable bat-

tery-powered data-acquisition applications, and for

other applications that demand low power consumption

and minimal space.

The MAX1392/MAX1395 are available in a space-sav-

ing (3mm x 3mm) 10-pin TDFN package or 10-pin

µMAX® package. The parts operate over the extended

(-40°C to +85°C) and military (-55°C to +125°C) tem-

perature ranges.

Applications

Portable Datalogging

Data Acquisition

Medical Instruments

Battery-Powered Instruments

Process Control

Features

♦ 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 VDD)

♦ AutoShutdown Between Conversions

♦ SPI-/QSPI-/MICROWIRE-/DSP-Compatible,

3- or 4-Wire Serial Interface

♦ Small (3mm x 3mm), 10-Pin TDFN or µMAX

(3mm x 5mm) Package

Typical Operating Circuit and Pin Configurations appear at

end of data sheet.

AutoShutdown is a trademark of Maxim Integrated Products, Inc.

SPI/QSPI are trademarks of Motorola, Inc.

MICROWIRE is a trademark of National Semiconductor Corp.

µMAX is a registered trademark of Maxim Integrated Products, Inc.

Ordering Information

PART

TEMP RANGE

MAX1392ETB**

-40°C to +85°C

MAX1392EUB**

-40°C to +85°C

MAX1392MTB**

-55°C to +125°C

MAX1392MUB**

-55°C to +125°C

MAX1395ETB

-40°C to +85°C

MAX1395EUB**

-40°C to +85°C

MAX1395MTB**

-55°C to +125°C

MAX1395MUB**

-55°C to +125°C

*EP = Exposed pad.

**Future product—contact factory for availability.

PIN-PACKAGE

10 TDFN-EP*

10 µMAX

10 TDFN-EP*

10 µMAX

10 TDFN-EP*

10 µMAX

10 TDFN-EP*

10 µMAX

ANALOG INPUTS

1-CH DIFF

1-CH DIFF

1-CH DIFF

1-CH DIFF

2-CH S/E

2-CH S/E

2-CH S/E

2-CH S/E

TOP MARK

AOY

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APB

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________________________________________________________________ Maxim Integrated Products 1

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

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