DAC8228
Dual 8-Bit, CMOS, Voltage Output, D/A Converter in a Single Chip
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Features
- Two 8-Bit Voltage Out DACs in a Single Chip
- Fits 7528/7628 Sockets
- Adjustment Free Internal CMOS Ops Amps
- Single +12V to +15V Operation
- TTL Compatible Over Full VDD range
- Fast Interface Timing ..............TWR = 50 ns
- Improved Resistance to ESD
- Available in Small Outline Package
- CerDIP and Epoxy Packages come in the Extended Industrial Temperature Range of -40°C to +85°C
- Available in Die Form
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The DAC-8228 is a dual 8-bit, voltage output, CMOS, D/A converter in a single chip. It was designed to drop into AD7528 / AD7628 sockets eliminating two external op amps in applications such as hard disk drives. These applications generally operate the AD7528 / AD7628 with zero volts applied to VREF and offset AGND to +2.5 or +5 volts. The DAC-8228 is tested under both these conditions.
The DAC-8228 can also be used in those applications requiring a unipolar output voltage. It can deliver an output voltage between 0V and +10V with VDD = +14V (maximum output voltage is VDD -4V). The DAC-8228's reference input can accept a negative voltage from 0V to -10V (the DAC's internal unity-gain inverting amplifier inverts the input signal). Choose the DAC-8229 for bipolar operation.
The DAC8228 offers CerDIP and plastic packaged devices in the extended industrial temperature range of -40° to +85°C. Applications requiring the military temperature range should use the DAC-8229. To make the DAC-8229 pin and functionally compatible with the DAC-8228, AGND A and AGND B should be tied together to function as VZ, and VSS connected to GND.
The DAC-8228 consists of two CMOS voltage output amplifiers, two high-accuracy R-2R resistor ladder networks, interface control logic, and two 8-bit registers. An internal regulator maintains TTL logic compatibility and fast microprocessor interface timing over the full VDD range.
The DAC-8228 dissipates only 90mW 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.
Using PMI's advanced oxide-isolated, silicon-gate CMOS process, coupled with its highly-stable thin-film resistor ladder, allows the DAC-8228 to offer superior matching and temperature tracking between DACs.
APPLICATIONS
- Disk Drive Systems
- Automatic Test Equipment
- Process/Industrial Controls
- Energy Controls
- Programmable Instrumentation
- Multi-Channel Microprocessor-Controlled Systems
- Servo Control Systems
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DAC8228
Documentation
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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 |
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| DAC8228FPZ |
20-Lead PDIP
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| DAC8228FSZ |
20-Lead SOIC (Wide)
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| DAC8228FSZ-REEL |
20-Lead SOIC (Wide)
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- DAC8228FPZ
- Pin/Package Drawing
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20-Lead PDIP
- Documentation
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HTML
Material Declaration
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HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
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Ultra Librarian
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SamacSys
- DAC8228FSZ
- Pin/Package Drawing
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20-Lead SOIC (Wide)
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- DAC8228FSZ-REEL
- Pin/Package Drawing
-
20-Lead SOIC (Wide)
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
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Part Models
Product Lifecycle
PCN
Mar 7, 2019
- 19_0046
Assembly Transfer of 18,20,24,28 Lead PDIP to Cirtek
DAC8228FPZ
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
DAC8228FPZ
PRODUCTION
Aug 4, 2010
- 10_0117
Halogen Free Material Change for SOIC_W Products at Carsem
DAC8228FSZ
PRODUCTION
DAC8228FSZ-REEL
PRODUCTION
Filter by Model
Part Models
Product Lifecycle
PCN
Mar 7, 2019
- 19_0046
Assembly Transfer of 18,20,24,28 Lead PDIP to Cirtek
DAC8228FPZ
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
DAC8228FPZ
PRODUCTION
Aug 4, 2010
- 10_0117
Halogen Free Material Change for SOIC_W Products at Carsem
DAC8228FSZ
PRODUCTION
DAC8228FSZ-REEL
PRODUCTION
Software & Part Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
|
PRODUCTION |
2.5 V to 5.5 V, 230 µA, Dual Rail-to-Rail Voltage Output 8-Bit DAC in a 10-Lead MicroSOIC Package |
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Precision DAC Error Budget Tool
