双8位， 10位， 12位，高带宽乘法数模转换器，串行接口 Dual 8-,10-,12-Bit High Bandwidth Multiplying DACs with Serial Interface
Product Details
The /AD5451/AD5452/AD54531 are CMOS 8-/10-/ 12-/14-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 suited to several applications, including battery-powered applications.
As a result of manufacture on a CMOS submicron process, these DACs offer excellent 4-quadrant multiplication characteristics of up to 12 MHz.
These DACs utilize a double-buffered, 3-wire serial interface that is compatible with SPI®, QSPI™, MICROWIRE™, and most DSP interface standards. Upon power-up, the internal shift register and latches are filled with 0s, and the DAC output is at zero scale.
The applied external reference input voltage VREF determines the full-scale output current. These parts can handle ±10 V inputs on the reference, despite operating from a single-supply power supply of 2.5 V to 5.5 V. An integrated feedback resistor RFB provides temperature tracking and full-scale voltage output when combined with an external current-to-voltage precision amplifier.
The AD5450/AD5451/AD5452/AD5453 DACs are available in small 8-lead TSOT, and the AD5452/AD5453 are also available in MSOP packages. The AD5453 also comes in 8-lead LFSCP.
**Applications**
- .
- Portable battery-powered applications
- .
- Waveform generators
- .
- Analog processing
- .
- Instrumentation applications
- .
- Programmable amplifiers and attenuators
- .
- Digitally controlled calibration
- .
- Programmable filters and oscillators
- .
- Composite video
- .
- Ultrasound
- .
- Gain, offset, and voltage trimming
### Features and Benefits
- .
- 12 MHz multiplying bandwidth
- .
- INL of ±0.25 LSB at 8-bit
- .
- 8-lead TSOT and MSOP packages
- .
- 2.5 V to 5.5 V supply operation
- .
- Pin-compatible 8-/10-/12-/14-bit current output DACs
- .
- ±10 V reference input
- .
- 50 MHz serial interface
- .
- 2.7 MSPS update rate
- .
- Extended temperature range: –40°C to +125°C
- .
- 4-quadrant multiplication
- .
- Power-on reset with brownout detect
- .
- <0.4 μA typical current consumption
- .
- Guaranteed monotonic
- .
- Qualified for automotive applications
