MAX1392, 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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Status Explanations for product status codes

Part Number Status
MAX1392 Active: In Production. See Ordering Information for details.
MAX1395 Active: In Production. See Ordering Information for details.

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 provides two single-ended inputs that accept signals ranging from 0 to VREF. 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.
 

Data Sheet

Download this datasheet in PDF formatDownload Rev 3 (PDF, 400kB)
Send this datasheet to any email addressE-Mail
An evaluation kit is available: MAX1396EVKIT

Key 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
 

Applications/Uses

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

Key Specifications:

Precision ADCs (< 5Msps)
Part Number Resolution
(bits)
Input Chan. Conv. Rate
(ksps)
Data Bus
(bits)
Diff/S.E. Input External VREF
(V)
External VREF
(V)
Unipolar VIN
(V)
Bipolar VIN
(±V)
SNR
(dB)
SINAD
(dB)
THD
(dB)
SFDR
(dB)
DNL
(±LSB)
INL
(±LSB)
Package/Pins Budgetary Price
ADC max min max max max See Notes
MAX1392  10 1 350 SPI Diff. Only 0.6 3.6 3.6 1.8 61 61 -83 84 0.5 0.5
TDFN-EP/10
$1.83 @1k
MAX1395  2 357 S.E. Only
TDFN-EP/10
$1.93 @1k
See All Precision ADCs (< 5Msps) (417)
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 prices and delivery, please see the price and availability page or contact an authorized distributor.


Diagram

MAX1392, MAX1395: Typical Operating Circuit
Typical Operating Circuit

More Information

Topmark Coding MAX1392
Topmark Coding MAX1395

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Document Ref.: 19-3709 Rev 3; 2010-01-05
This page last modified: 2010-01-05




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