LTC2621

Features:

 Smallest Pin-Compatible Single DACs:
    LTC2601: 16 Bits
    LTC2611: 14 Bits
    LTC2621: 12 Bits
  Guaranteed Monotonic Over Temperature
  Wide 2.5V to 5.5V Supply Range
  Low Power Operation: 300µA at 3V
  Power Down to 1µA, Max
  High Rail-to-Rail Output Drive (±15mA, Min)
  Double-Buffered Data Latches
  Asynchronous DAC Update Pin
  Tiny (3mm ´ 3mm) 10-Lead DFN Package


Application

 Mobile Communications
 Process Control and Industrial Automation
 Instrumentation
 Automatic Test Equipment


Pinout

Specifications

Any Pin to GND ........................................... 0.3V to 6V
Any Pin to V_CC .............................................6V to 0.3V
Maximum Junction Temperature ......................... 125°C
Operating Temperature Range
    LTC2601C/LTC2611C/LTC2621C ..........  0°C to 70°C
    LTC2601I/LTC2611I/LTC2621I .......... 40°C to 85°C
Storage Temperature Range ................65°C to 125°C
Lead Temperature (Soldering, 10 sec)................ 300°C


Description

The LTC^®2601/LTC2611/LTC2621 are single 16-, 14- and 12-bit, 2.5V-to-5.5V rail-to-rail voltage output DACs in a 10-lead DFN package. They have built-in high performance output buffers and are guaranteed monotonic.

These parts establish new board-density benchmarks for 16- and 14-bit DACs and advance performance standards for output drive, and load regulation in single-supply, voltage-output multiples.

The parts use a simple SPI/MICROWIRE^TM compatible 3-wire serial interface which can be operated at clock rates up to 50MHz. Daisy-chain capability, hardware CLR and asynchronous DAC update ( LDAC ) pins are included.

The LTC2601/LTC2611/LTC2621 incorporate a power-on reset circuit. During power-up, the voltage outputs rise less than 10mV above zero scale; and after power-up, they stay at zero scale until a valid write and update take place.