LINEAR TECHNOLOGY LTC2601 Data Sheet User Guide LTC2611 LTC2621

查询LTC2601CDD供应商

LTC2601/LTC2611/LTC2621 16-/14-/12-Bit Rail-to-Rail DACs in 10-Lead DFN

FEATURES DESCRIPTIO

Smallest Pin-Compatible Single DACs: The LTC®2601/LTC2611/LTC2621 are single 16-, 14- LTC2601: 16 Bits and 12-bit, 2.5V-to-5.5V rail-to-rail voltage output DACs LTC2611: 14 Bits in a 10-lead DFN package. They have built-in high perfor- LTC2621: 12 Bits mance output buffers and are guaranteed monotonic. Guaranteed Monotonic Over Temperature

These parts establish new board-density benchmarks for

Wide 2.5V to 5.5V Supply Range

16- and 14-bit DACs and advance performance standards

Low Power Operation: 300µA at 3V

for output drive, and load regulation in single-supply,

Power Down to 1µA, Max

voltage-output multiples.

High Rail-to-Rail Output Drive (±15m A, Min)

Double-Buffered Data Latches The parts use a simple SPI/MICROWIRETM compatible Asynchronous DAC Update Pin 3-wire serial interface which can be operated at clock rates Tiny (3mm × 3mm) 10-Lead DFN Package up to 50MHz. Daisy-chain capability, hardware CLR and asynchronous DAC update (LDAC) pins are included.

APPLICATIO The LTC2601/LTC2611/LTC2621 incorporate a power-on

reset circuit. During power-up, the voltage outputs rise

Mobile Communications

less than 10m V above zero scale; and after power-up, they

Process Control and Industrial Automation

stay at zero scale until a valid write and update take place.

Instrumentation

DN (L SB , LTC and LT are registered trademarks of Linear Technology Corporation.

Automatic Test Equipment MICROWIRE is a trademark of National Semiconductor Corporation.

U.S. patent number 5396245.

BLOCK DIAGRA

SDI REF VCC

Differential Nonlinearity (LTC2601) 1.0 VCC = 5V 0.8 VREF = 4.096V

32-BIT VOUT

INPUT DAC 0.2

SHIFT 12-/14-/16-BIT DAC

REGISTER REGISTER

REGISTER

CS/LD

CONTROL –0.6

DECODE

LOGIC

LDAC CLR GND CODE

2601 BD 2600 G02