DAC8229
Dual 8-Bit, Voltage Output, Multiplying CMOS D/A
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Alternative Parts
AD5302
2.5 V to 5.5 V, 230 µA, Dual Rail-to-Rail Voltage Output 8-Bit DAC in a 10-Lead MicroSOIC Package
Overview
Features and Benefits
- Two 8-Bit DACs in A Single Chip
- Adjustment-Free Internal CMOS Amplifiers
- Single or Dual Supply Operation
- TTL Compatible Over Full VDD Range
- 5 Microsecond Settling Time
- Fast Interfacing Timing......TWR = 50 ns
- Improved Resistance to ESD
- Fits AD/PM-7528 and AD/PM-7628 Sockets
- Available in Small Outline Package
- −40°C to +85°C for the Extended Industrial Temperature Range
- Available in Die Form
Product Details
The DAC-8229 is a dual 8-bit, voltage output, multiplying CMOS D/A converter. Its reference iput accepts a ±2.5 V signal, inverts and delivers it to the output with an internal amplifier. It can also accept −10 V at VREF with a corresponding +10 V output ( the maximum positive input signal that it can accept is +2.5 V).
The DAC-8229 was designed to operate with dual supplies; however, it can be operated with a single supply by connecting VSS, AGND A, and AGND B to ground. Its operating characteristics will then be similar to that of the DAC-8228 (whose pin-out allows it to drop into the AD/PM-7528 and AD/PM-7628 sockets).
An internal regulator provides TTL logic compatibility and fast microprocessor interface timing over the full VDD range. Also, each DAC input latch is addressable for easy microprocessor interfacing.
The DAC-8229 dissipates less than 109 mW in the space-saving 20-pin 0.3" DIP or the 20-lead So surface-mount package. Its compact size, low power, and economical cost per channel, makes it attractive for applications requiring multiple D/A converters without sacrificing circuit-board space. Reduced parts count also improves system reliability.
PMI's advanced oxide-isolated, silicon-gate CMOS process, coupled with PMI's highly-stable thin-film R-2R resistor ladder, offers superior matching and temperature tracking between DACs.
The DAC-8229 offers cerdip or epoxy packaged devices in the extended industrial temperature range of −40°C to +85°C.
Product Lifecycle
Not Recommended for New Designs
This designates products ADI does not recommend broadly for new designs.
Documentation & Resources
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.
Design Resources
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 Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| DAC8229FSZ | Material Declaration | Reliability Data | 20-Lead SOIC (Wide) | |
| Wafer Fabrication Data |
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Lead Times
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