描述:1
LTC1655/LTC1655L
16-Bit Rail-to-Rail
Micropower DACs in
SO-8 Package
n 16-Bit Monotonicity Over Temperature
n Deglitched Rail-to-Rail Voltage Output
n SO-8 Package
n I
CC(TYP)
: 600m A
n Internal Reference: 2.048V (LTC1655)
1.25V (LTC1655L)
n Maximum DNL Error: – 1LSB
n Settling Time: 20m S to – 1LSB
n 750kHz Max Update Rate
n Power-On Reset to Zero Volts
n 3-Wire Cascadable Serial Interface
n Low Cost
n Pin Compatible Upgrade for LTC1451 12-Bit DAC
Family
The LTC
?
1655/LTC1655L are rail-to-rail voltage output,
16-bit digital-to-analog converters in an SO-8 package.
They include an output buffer and a reference. The 3-wire
serial interface is compatible with SPI/QSPI and
MICROWIRE
TM
protocols. The CLK input has a Schmitt
trigger that allows direct optocoupler interface.
The LTC1655 has an onboard 2.048V reference that can be
overdriven to a higher voltage. The output swings from 0V
to 4.096V when using the internal reference. The typical
power dissipation is 3.0mW on a single 5V s