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AD8804AR-REEL
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Product Detailed Parameters
- Description：IC DAC 8BIT V-OUT 20SOIC
- Series：TrimDAC®
- Mfr：Analog Devices Inc.
- Package：Bulk
- Number of Bits：8
- Number of D/A Converters：12
- Settling Time：600ns (Typ)
- Output Type：Voltage - Unbuffered
- Differential Output：No
- Data Interface：SPI
- Reference Type：External
- Voltage - Supply, Analog：2.7V ~ 5.5V
- Voltage - Supply, Digital：2.7V ~ 5.5V
- INL/DNL (LSB)：±0.5, ±0.25
- Architecture：R-2R
- Operating Temperature：-40°C ~ 85°C
- Package / Case：20-SOIC (0.295", 7.50mm Width)
- Supplier Device Package：20-SOIC
- Mounting Type：Surface Mount
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Overview
The AD8804AR-REEL is an 8-bit, 12-channel digital-to-analog converter (DAC) from Analog Devices. It utilizes a T-DAC architecture with an internal reference and shutdown capability. The device operates on a single supply voltage ranging from 3 V to 5 V for both analog and digital domains. Key electrical specifications include a settling time of 600 ns and a sampling rate of 1.7 MS/s. It features unbuffered voltage outputs and communicates via a 3-wire SPI interface. The component is housed in a 20-pin SOIC package.
Feature Summary
- 12-channel 8-bit resolution with R-2R architecture
- Integrated voltage reference and shutdown mode
- 3-wire SPI serial interface compatibility
- Single 3 V to 5 V power supply operation
Applications
- Portable instrumentation systems
- Battery-powered data acquisition devices
- Industrial process control loops
Procurement Notes
Verify the specific suffix 'REEL' indicates tape and reel packaging rather than tube. Confirm current lifecycle status as the AD8804 series has been marked as obsolete by the manufacturer. Ensure the source document explicitly lists the AD8804AR-REEL part number to validate availability and authenticity before procurement.
Selection Notes
Select this component when multiple low-cost DAC channels are required within a space-constrained design. The 8-bit resolution suits applications not requiring high precision. Verify that the 600 ns settling time meets the system's speed requirements. Ensure the host microcontroller supports the 3-wire SPI protocol for seamless integration.
Part Context
The AD8804 belongs to the TrimDAC family of multi-channel converters. It shares architectural similarities with the AD8802 and AD8803 but offers a higher channel count. The 'AR' designation specifies the industrial temperature range and SOIC package. The 'REEL' suffix denotes the specific shipping configuration for automated assembly.
Replacement Considerations
Publicly confirmed parameter-equivalent substitutes include the AD8802ARZ and AD8804ARZ. Note that the AD8804 series is generally considered obsolete. Verify pinout compatibility and software register mapping when transitioning between tube and reel variants or different channel counts within the same family.
