The 16-bit DAC82002 is a highly accurate, low-power, dual-channel digital-to-analog converter (DAC) with an unbuffered voltage output.
The DAC82002 works with 3.3-V and 5-V supplies and offers linearity of 1‑LSB DNL and 2‑LSB INL. The high accuracy combined with a tiny package make the device an excellent choice for applications such as gain and offset calibration, voltage set point generation, and power-supply control. The DAC82002 incorporates a power-on-reset circuit to make sure that the DAC output powers up at zero scale or midscale based on the status of RSTSEL pin, and remains at that scale until a valid code is written to the device. All internal registers are asynchronously reset after the RESET pin is pulled low.
The DAC82002 uses a versatile, three-wire serial peripheral interface (SPI) that operates at clock rates of up to 50 MHz.
PART NUMBER | PACKAGE(1) | BODY SIZE (NOM) |
---|---|---|
DAC82002 | DRX (WSON, 10) | 2.50 mm × 2.50 mm |
Changes from Revision * (August 2022) to Revision A (January 2023)
PIN | TYPE | DESCRIPTION | |
---|---|---|---|
NAME | NO. | ||
AGND | 4 | Ground | Ground reference point for all circuitry on the device. |
RESET | 5 | Input | Asynchronous reset. Active low. If RESET is low, all DAC channels reset either to zero-scale (RSTSEL = AGND) or to midscale (RSTSEL = VDD). |
RSTSEL | 3 | Input | Reset select pin. DACs power up to zero scale if RSTSEL = AGND. DACs power up to midscale if RSTSEL = VDD. |
SCLK | 6 | Input | Serial interface clock of SPI. |
SDIN | 8 | Input | Serial interface data input of SPI. Data are clocked into the input shift register on each falling edge of the SCLK pin. |
SYNC | 7 | Input | Serial data enable of SPI. Active low. This input is the frame-synchronization signal for the serial data. When the signal goes low, the serial interface input shift register is enabled. |
VDD | 1 | Power | Analog supply voltage (2.7 V to 5.5 V) |
VOUTA | 2 | Output | Analog output voltage from DAC A |
VOUTB | 9 | Output | Analog output voltage from DAC B |
VREF | 10 | Input | This pin is the external reference input to the device. |