MAX1169

Features:

 High-Speed I²C-Compatible Serial Interface
     400kHz Fast Mode
     1.7MHz High-Speed Mode
 +4.75V to +5.25V Single Supply
 +2.7V to +5.5V Adjustable Logic Level
 Internal +4.096V Reference
 External Reference: 1V to AVDD
 Internal 4MHz Conversion Clock
 58.6ksps Sampling Rate
 AutoShutdown Between Conversions
 Low Power
    5.0mW at 58.6ksps
    4.2mW at 50ksps
    2.0mW at 10ksps
    0.23mW at 1ksps
    3W in Shutdown
 Small 14-Pin TSSOP Package


Application

Hand-Held Portable Applications
Medical Instruments
Battery-Powered Test Equipment
Solar-Powered Remote Systems
Received-Signal-Strength Indicators
System Supervision


Pinout




Specifications

AVDD to AGND .........................................................-0.3V to +6V
DVDD to DGND.........................................................-0.3V to +6V
AGND to DGND......................................................-0.3V to +0.3V
AGNDS to AGND....................................................-0.3V to +0.3V
AIN, REF, REFADJ to AGND........................-0.3V to (AV_DD + 0.3V)
SCL, SDA, ADD_ to DGND.........................................-0.3V to +6V
Maximum Current into Any Pin............................................50mA
Continuous Power Dissipation (T_A = +70°C)
   14-Pin TSSOP (derate 9.1mW/°C above +70°C) .......727mW
Operating Temperature Ranges
   MAX1169_CUD ................................................0°C to +70°C
   MAX1169_EUD .............................................-40°C to +85°C
Storage Temperature Range ........................-65°C to +150°C
Junction Temperature...................................................+150°C
Lead Temperature (soldering, 10s) ..............................+300°C


Description

The MAX1169 is a low-power, 16-bit successiveapproximation analog-to-digital converter (ADC). The device features automatic power down, an on-chip 4MHz clock, a +4.096V internal reference, and an I²C-compatible 2-wire serial interface capable of both fast and high speed modes.

The MAX1169 operates from a single supply and consumes 5mW at the maximum conversion rate of 58.6ksps. AutoShutdown™ powers down the device between conversions, reducing supply current to less than 50A at a 1ksps throughput rate. The option of a separate digital supply voltage allows direct interfacing with +2.7V to +5.5V digital logic.

The MAX1169 performs a unipolar conversion on its single analog input using its internal 4MHz clock. The full-scale analog input range is determined by the internal reference or by an externally applied reference voltage ranging from 1V to AV_DD.

The four address select inputs (ADD0 to ADD3) allow up to 16 MAX1169 devices on the same bus.

The MAX1169 is packaged in a 14-pin TSSOP and offers both commercial and extended temperature ranges. Refer to the MAX1069 data sheet for a 14-bit device in a pin-compatible package.