DAC8822_V01中文资料德州仪器数据手册PDF规格书

FEATURES

· ±0.5LSB DNL

· ±1LSB INL

· Low Noise: 12nV/ÖHz

· Low Power Operation:

I DD = 1mA per Channel at 2.7V

· 2mA Full-Scale Current, with VREF = 10V

· Settling Time: 0.5ms

· 16-Bit Monotonic

· 4-Quadrant Multiplying Reference Inputs

· Reference Bandwidth: 10MHz

· Reference Input: ±18V

· Reference Dynamics: –105 THD

· Midscale or Zero Scale Reset

· Analog Power Supply: +2.7V to +5.5V

· TSSOP-38 Package

· Industry-Standard Pin Configuration

· Pin-Compatible with the 14-Bit DAC8805

· Temperature Range: –40°C to +125°C

APPLICATIONS

· Automatic Test Equipment

· Instrumentation

· Digitally Controlled Calibration

· Industrial Control PLCs

DESCRIPTION

The DAC8822 dual, multiplying digital-to-analog

converter (DAC) is designed to operate from a single

2.7V to 5.5V supply.

The applied external reference input voltage VREF

determines the full-scale output current. An internal

feedback resistor (RFB) provides temperature

tracking for the full-scale output when combined with

an external, current-to-voltage (I/V) precision

amplifier.

A RSTSEL pin allows system reset assertion (RS) to

force all registers to zero code when RSTSEL = '0',

or to midscale code when RSTSEL = '1'. Additionally,

an internal power-on reset forces all registers to zero

or midscale code at power-up, depending on the

state of the RSTSEL pin.

A parallel interface offers high-speed

communications. The DAC8822 is packaged in a

space-saving TSSOP-38 package and has an

industry-standard pinout. The device is specified

from –40°C to +125°C.

For a 14-bit, pin-compatible version, see the

DAC8805.