The AD7242/AD7244 is a fast, complete, dual 12-bit/14-bit voltage output D/A converter. It consists of a 12-bit/14-bit DAC, 3 V buried Zener reference, DAC output amplifiers and high speed serial interface logic.
Interfacing to both DACs is serial, minimizing pin count and allowing a small package size. Standard control signals allow interfacing to most DSP processors and microcontrollers. Asynchronous control of DAC updating for both DACs is made possible with a separate LDAC input for each DAC.
The AD7242/AD7244 operates from ±5 V power supplies, providing an analog output range of ±3 V. A REF OUT/REF IN function allows the DACs to be driven from the on-chip 3 V reference or from an external reference source.
The AD7242/AD7244 is fabricated in Linear Compatible CMOS (LC2MOS), an advanced mixed technology process that combines precision bipolar circuits with low power CMOS logic. Both parts are available in a 24-pin, 0.3-inch wide, plastic or hermetic dual-in-line package (DIP) and in a 28-pin, plastic small outline (SOIC) package. The AD7242 and AD7244 are available in the same pinout to allow easy upgrade from 12-bit to 14-bit performance.
Features and Benefits
| Digital to Analog Converters |
| Document | note |
| AD7244: LC2MOS Dual, Complete, 12-Bit/14-Bit Serial DACs Data Sheet (Rev. B) | PDF 319 kB |
| Document | note |
| AN-225: 12-Bit Voltage-Output DACs for Single-Supply 5V and 12V Systems | PDF 237 kB |
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|---|---|---|---|---|---|
| 5962-9164701MLA Production | 24 ld CerDIP(300 Mil) | OTH 15 | -55 to 125C | 154.85 | 139.99 | N |
| AD7244AQ Production | CERDIP GLASS SEAL | OTH 15 | -40 to 85C | 38.62 | 34.9 | N |
| AD7244JNZ Production | 24 ld PDIP | OTH 15 | -40 to 85C | 37.22 | 33.25 | Y |
| AD7244JR Last Time Buy | 28 ld SOIC - Wide | OTH 27 | -40 to 85C | 0 | 0 | N |
| AD7244JRZ Production | 28 ld SOIC - Wide | OTH 27 | -40 to 85C | 32.86 | 29.35 | Y |
| AD7244JRZ-REEL Production | 28 ld SOIC - Wide | REEL 1000 | -40 to 85C | 0 | 29.35 | Y |
