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Product Detailed Parameters
- Description：IC DAC 8BIT V-OUT 8SOIC
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Number of Bits：8
- Number of D/A Converters：2
- Settling Time：2µs
- Output Type：Voltage - Buffered
- Differential Output：No
- Data Interface：SPI
- Reference Type：External, Internal
- 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：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Mounting Type：Surface Mount
- Grade：-
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Overview
The AD7303BRZ-REEL is a dual, 8-bit voltage output digital-to-analog converter (DAC) from Analog Devices. It operates on a single +2.7 V to +5.5 V supply and features rail-to-rail output capability with an internal reference or external reference input. The device utilizes a versatile 3-wire serial interface compatible with SPI, QSPI, Microwire, and DSP standards, supporting clock rates up to 30 MHz. Key specifications include a typical settling time of 1.2 μs, ±1 LSB relative accuracy, and individual DAC power-down functions that reduce current consumption to typically 80 nA in full power-down mode.
Feature Summary
- Dual 8-bit DACs with rail-to-rail output buffers
- Single supply operation (+2.7 V to +5.5 V)
- Internal or external reference selection via control register
- 3-wire serial interface (SPI/QSPI/Microwire compatible) up to 30 MHz
Applications
- Portable battery-powered instruments
- Digital gain and offset adjustment circuits
- Programmable voltage and current sources
- Programmable attenuators
Procurement Notes
Verify the package type for the 'Z' suffix against official documentation, as standard listings often specify SOIC-8 or microSOIC-8. Confirm RoHS compliance status directly with the manufacturer's ordering guide. Ensure the reel quantity matches project requirements, as packaging formats vary by distributor.
Selection Notes
Select this component when a low-power, dual-channel DAC with rail-to-rail output is required. The internal reference simplifies design by eliminating external reference components, though an external reference can be used for higher precision. Ensure the host processor supports the 3-wire serial protocol or bit-banging capabilities for SCLK, DIN, and SYNC signals.
Part Context
The AD7303 belongs to the AD7303 family of dual 8-bit DACs. Variants include the AD7303BN (DIP), AD7303BR (SOIC), and AD7303BRM (microSOIC). The BRZ designation indicates a lead-free, RoHS-compliant version of the SOIC package. Related parts include the AD7304 (quad channel) and AD7305 (parallel interface quad channel).
Replacement Considerations
Direct pin-compatible replacements within the same series include AD7303BR and AD7303BRM. For quad-channel applications, consider the AD7304BRUZ. Verify interface compatibility and power-down current specifications when substituting.
