AD557
NOT RECOMMENDED FOR NEW DESIGNSDACPORT Low Cost, Complete µP-Compatible 8-Bit DAC
- Part Models
- 1
- 1ku List Price
- Starting From $10.12
Part Details
- Complete 8-bit DC
- Voltage Output - 0 V to 2.56 V
- Internal Precision Band-Gap Reference
- Single-Supply Operation: 5 V (±10%)
- Full Microprocessor Interface
- Fast: 1 xxs Voltage Settling to ±1/2 LSB
- Low power: 75 mW
- No User Trims Required
- Guaranteed Montonic Over Temperature
- All Errors Specified Tmin to Tmax
- Small 16-Lead DIP or 20-Lead PLCC Package
- Low Cost
The AD557 DACPORT® is a complete voltage-output 8-bit digital-to-analog converter, including output amplifier, full microprocessor interface and precision voltage reference on a single monolithic chip. No external components or trims are required to interface, with full accuracy, an 8-bit data bus to an analog system.
The low cost and versatility of the AD557 DACPORT are the result of continued development in monolithic bipolar technologies.
The complete microprocessor interface and control logic is implemented with integrated injection logic (I2L), an extremely dense and low-power logic structure that is process-compatible with linear bipolar fabrication. The internal precision voltage reference is the patented low-voltage band-gap circuit which permits full-accuracy performance on a single +5 V power supply. Thin-film silicon-chromium resistors provide the stability required for guaranteed monotonic operation over the entire operating temperature range, while laser-wafer trimming of these thin-film resistors permits absolute calibration at the factory to within ±2.5 LSB; thus, no user-trims for gain or offset are required. A new circuit design provides voltage settling to ±1/2 LSB for a full-scale step in 800 ns.
The AD557 is available in two package configurations. The AD557JN is packaged in a 16-pin plastic, 0.3"-wide DIP. For surface mount applications, the AD557JP is packaged in a 20-pin JEDEC standard PLCC. Both versions are specified over the operating temperature range of 0°C to +70°C.
Documentation
Solutions Bulletin & Brochure 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| AD557JNZ | 16-Lead PDIP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Mar 29, 2021 - 21_0033 Assembly Site Transfer for 14/16L 300_MIL PDIP to Cirtek |
||
| AD557JNZ | PRODUCTION | |
|
Aug 19, 2009 - 07_0024 Package Material Changes for SOT23, MiniSO, MQFP, PDIP, PLCC, SOIC (narrow and wide body), SSOP, TSSOP and TSSOP exposed pad |
||
| AD557JNZ | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
Tools & Simulations
Precision DAC Error Budget Tool
The Precision DAC Error Budget Tool is a web application that calculates the DC Accuracy of precision DAC signal chains. It shows how the static errors accumulate throughout your signal chain to quickly evaluate the design tradeoffs. Calculations include the DC errors introduced by Voltage References, Operation Amplifiers and Precision DACs.
Open Tool