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AD7801BRUZ-REEL
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Product Detailed Parameters
- Description：IC DAC 8BIT V-OUT 20TSSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Number of Bits：8
- Number of D/A Converters：1
- Settling Time：2µs
- Output Type：Voltage - Buffered
- Differential Output：No
- Data Interface：Parallel
- Reference Type：External
- Voltage - Supply, Analog：2.7V ~ 5.5V
- Voltage - Supply, Digital：2.7V ~ 5.5V
- INL/DNL (LSB)：±1 (Max), ±1 (Max)
- Architecture：Current Source
- Operating Temperature：-40°C ~ 105°C
- Package / Case：20-TSSOP (0.173", 4.40mm Width)
- Supplier Device Package：20-TSSOP
- Mounting Type：Surface Mount
- Grade：-
- Qualification：-
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Overview
The AD7801BRUZ-REEL is a single-channel, 8-bit voltage-output digital-to-analog converter (DAC) manufactured by Analog Devices Inc. It operates from a single +2.7 V to +5.5 V supply and features an on-chip precision output buffer capable of rail-to-rail swing. The device utilizes a parallel microprocessor and DSP-compatible interface with double-buffered logic for synchronous updates. Key electrical parameters include a maximum settling time of 2 µs, ±1 LSB relative accuracy, and a typical power consumption of 5 mW at 3.3 V. It supports both internal and external reference inputs.
Feature Summary
- Single 8-bit resolution with rail-to-rail voltage output capability
- Parallel interface compatible with standard microprocessors and DSPs
- Internal or external reference selection via REFIN pin
- Power-down mode reduces current consumption to less than 1 µA
Applications
- Portable battery-powered instruments
- Digital gain and offset adjustment circuits
- Programmable voltage and current sources
- Programmable attenuators
Procurement Notes
Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and temperature range. The BRU designation indicates a TSSOP-20 package within the -40°C to +105°C operating range. Confirm that the reel packaging matches the required quantity for production needs without relying on distributor stock claims.
Selection Notes
Select this component when a low-power, single-supply DAC with rail-to-rail output is required. Ensure the system can accommodate the parallel interface timing requirements, specifically the write pulse width and data setup times. Verify that the load capacitance does not exceed the specified limits for the desired settling time performance.
Part Context
The AD7801 belongs to a family of low-power, single-supply DACs designed for portable applications. The BRUZ variant specifically denotes the Thin Shrink Small Outline Package (TSSOP). This part number represents the tape-and-reel version of the standard through-hole or SOIC variants, facilitating automated surface-mount assembly.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Engineers should consult the manufacturer's official cross-reference tools for verified alternatives.
