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Product Detailed Parameters
- Description：IC DAC 8BIT V-OUT 28PLCC
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Number of Bits：8
- Number of D/A Converters：8
- Settling Time：5µs, 7µs
- Output Type：Voltage - Buffered
- Differential Output：No
- Data Interface：Parallel
- Reference Type：External
- Voltage - Supply, Analog：10.8V ~ 16.5V, -5V
- Voltage - Supply, Digital：13.5V ~ 16.5V
- INL/DNL (LSB)：± 1 (Max), 1 (Max)
- Architecture：R-2R
- Operating Temperature：-40°C ~ 85°C
- Package / Case：28-LCC (J-Lead)
- Supplier Device Package：28-PLCC (11.51x11.51)
- Mounting Type：Surface Mount
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Overview
The AD7228KPZ-REEL is an octal 8-bit voltage-mode digital-to-analog converter (DAC) fabricated on LC2MOS CMOS process. It integrates eight DACs with output buffer amplifiers and interface logic on a single chip, eliminating the need for external trims. The device features individual latches for each channel, controlled via a common 8-bit parallel data bus and address inputs (A0-A2). It supports dual supplies (VDD: 10.8 V to 16.5 V; VSS: -5 V) or single supply operation. Key electrical parameters include a settling time of 5 µs, ±1 LSB DNL/INL, and a maximum supply current of 20 mA.
Feature Summary
- Octal architecture with eight independent 8-bit DACs and buffered outputs on one monolithic chip.
- Microprocessor-compatible parallel interface with TTL/CMOS levels and speed compatible with 95 ns WR pulses.
- Operates from dual supplies (-5 V to +16.5 V) or single supply configurations.
- Guaranteed monotonic performance with ±1 LSB differential nonlinearity and no user trims required.
Applications
- Automated test equipment requiring multi-channel signal generation.
- Industrial control systems utilizing microprocessor-based architectures.
- Programmable power supplies and setpoint controllers.
Procurement Notes
Verify that the specific ordering suffix 'REEL' corresponds to the tape-and-reel packaging format as defined in the manufacturer's official documentation. Confirm that the base part number AD7228KPZ matches the required 28-lead PLCC package and K-grade performance specifications before procurement.
Selection Notes
Select this component when multiple isolated 8-bit DAC channels are needed in a compact surface-mount footprint. Ensure the application requires a parallel interface with separate latch enable signals. Verify that the system can provide the necessary reference voltage range (2 V to 10 V) and supply rails for the desired accuracy class.
Part Context
This part belongs to the AD7228 family of octal DACs from Analog Devices. The 'K' designation indicates the commercial temperature grade (-40°C to +85°C), while 'PZ' specifies the 28-lead PLCC package. The 'REEL' suffix denotes the reel packaging variant, distinct from tube-packaged versions like AD7228KPZ.
Replacement Considerations
Direct pin-compatible replacements within the same package and grade must be verified against the latest Analog Devices cross-reference guide. Generic octal DACs may differ in interface timing, output drive capability, or linearity specifications.
