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Technical Specifications
Parameters and characteristics for this part
| Specification | DAC7821IPWR |
|---|---|
| Architecture | R-2R |
| Data Interface | Parallel |
| Differential Output | True |
| INL/DNL (LSB) | ±1 (Max) |
| Mounting Type | Surface Mount |
| Number of Bits | 12 bits |
| Operating Temperature [Max] | 125 °C |
| Operating Temperature [Min] | -40 °C |
| Output Type | Current - Unbuffered |
| Package / Case | 20-TSSOP |
| Package / Case [x] | 0.173 in |
| Package / Case [y] | 4.4 mm |
| Reference Type | External |
| Settling Time | 200 ns |
| Supplier Device Package | 20-TSSOP |
| Voltage - Supply, Analog [Max] | 5.5 V |
| Voltage - Supply, Analog [Min] | 2.7 V |
| Voltage - Supply, Digital [Max] | 5.5 V |
| Voltage - Supply, Digital [Min] | 2.7 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Arrow | N/A | 2000 | $ 3.28 | |
| Digikey | Tape & Reel (TR) | 2000 | $ 3.30 | |
| Texas Instruments | LARGE T&R | 1 | $ 4.63 | |
| 100 | $ 3.78 | |||
| 250 | $ 2.97 | |||
| 1000 | $ 2.52 | |||
Description
General part information
DAC7821 Series
The DAC7821 is a CMOS 12-bit current output digital-to-analog converter (DAC). This device operates from a single 2.5V to 5.5V power supply, making it suitable for battery-powered and many other applications.
This DAC operates with a fast parallel interface. Data readback allows the user to read the contents of the DAC register via the DB pins. On power-up, the internal register and latches are filled with zeroes and the DAC outputs are at zero scale.
The DAC7821 offers excellent 4-quadrant multiplication characteristics, with a large signal multiplying bandwidth of 10MHz. 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.
Documents
Technical documentation and resources
