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Product Detailed Parameters
- Description：IC DAC 8BIT V-OUT 20DIP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Number of Bits：8
- Number of D/A Converters：2
- 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-DIP (0.300", 7.62mm)
- Supplier Device Package：20-PDIP
- Mounting Type：Through Hole
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Overview
The AD7302BNZ is a dual, 8-bit voltage output digital-to-analog converter (DAC) from Analog Devices Inc. It operates on a single +2.7 V to +5.5 V supply and features on-chip precision output buffers that allow rail-to-rail voltage swing. The device utilizes a parallel microprocessor and DSP-compatible interface with high-speed registers and double-buffered logic. Data loads on the rising edge of CS or WR, while the A/B pin selects DAC A or B. Both DACs can be simultaneously updated via the asynchronous LDAC input or cleared using the asynchronous CLR input. Reference selection supports internal VDD/2 generation or external application at the REFIN pin.
Feature Summary
- Dual 8-bit DACs in one package with rail-to-rail output capability
- Parallel interface compatible with standard microprocessors and DSPs
- Internal or external reference input options
- 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 suffix 'BNZ' against the manufacturer's ordering guide to confirm the plastic DIP package option and temperature range. Ensure compatibility with system requirements for 20-lead DIP packaging. Confirm lead-free status if required by local regulations, as indicated in general product descriptions.
Selection Notes
Select this component when dual 8-bit conversion is needed with rail-to-rail output swings on a single supply. The parallel interface simplifies connection to standard digital buses. Consider the power-down feature for battery-operated applications requiring low standby current. Verify that the 20-lead DIP package fits the PCB layout constraints.
Part Context
The AD7302 series includes variants such as AD7302BRU (TSSOP) and AD7302BR (SOIC). The BNZ designation specifically refers to the 20-lead Plastic DIP package version. All variants share the same electrical specifications and functionality, differing primarily in physical package form factor.
Replacement Considerations
Direct replacements include AD7302BR and AD7302BRU from Analog Devices, which offer identical electrical performance in SOIC and TSSOP packages respectively. Cross-brand equivalents may require interface and pinout verification.
