AD5443YRM-REEL7

8位/ 10位/ 12位，高带宽乘法数模转换器，串行接口 8-/10-/12-Bit High Bandwidth Multiplying DACs with Serial Interface

Product Details

The AD5426/AD5432/AD5443 are CMOS 8-, 10-, and 12-bit current output digital-to-analog converters DACs, respectively. These devices operate from a 2.5 V to 5.5 V power supply, making them suitable for battery-powered applications and many other applications.

These DACs use a double buffered, 3-wire serial interface that is compatible with SPI, QSPI™, MICROWIRE™, and most DSP interface standards. In addition, a serial data out pin SDO allows for daisy-chaining when multiple packages are used. Data readback allows the user to read the contents of the DAC register via the SDO pin. On power-up, the internal shift register and latches are filled with 0s and the DAC outputs are at zero scale.

As a result of manufacturing on a CMOS submicron process, the parts offer excellent 4-quadrant multiplication characteristics with large signal multiplying bandwidths of 10 MHz. The applied external reference input voltage, VREF, determines the full-scale output current. An integrated feedback resistor, RFB, provides temperature tracking and full-scale voltage output when combined with an external current to voltage precision amplifier.

The AD5426/AD5432/AD5443 DACs are available in small, 10-lead MSOP packages.

The EVAL-AD5443SDZ/EVAL-AD5446SDZ/EVAL-AD5453SDZ evaluation board is available for evaluating DAC performance. For more information, see the UG-327 evaluation board user guide.

**Applications**

.

Portable battery-powered applications

.

Waveform generators

.

Instrumentation

.

Programmable amplifiers and attenuators

.

Digitally controlled calibration

.

Programmable filters and oscillators

.

Composite video

.

Ultrasound

.

Gain, offset, and voltage trimming

### Features and Benefits

.

2.5 V to 5.5 V supply operation

.

50 MHz Serial Interface

.

10 MHz Multiplying Bandwidth

.

2.5 MSPS update rate

.

INL of ±1 LSB for 12-bit DAC

.

±10 V reference input

.

Low glitch energy < 2 nV-s

.

Extended temperature range −40°C to +125°C

.

10-lead MSOP package

.

Pin Compatible 8- AD5426 and 10- AD5432 Current Output DACs

.

Guaranteed monotonic

.

4-quadrant multiplication

.

Power-on reset with brownout detection

.

Daisy-chain mode

.

Readback function

.

0.4 μA typical power consumption