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AD7812YRUZ-REEL7
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Product Detailed Parameters
- Description：IC ADC 10BIT SAR 20TSSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Number of Bits：10
- Sampling Rate (Per Second)：350k
- Number of Inputs：7, 8
- Input Type：Pseudo-Differential, Single Ended
- Data Interface：DSP
- Configuration：MUX-S/H-ADC
- Ratio - S/H:ADC：1:01
- Number of A/D Converters：1
- Architecture：SAR
- Reference Type：External, Internal
- Voltage - Supply, Analog：2.7V ~ 5.5V
- Voltage - Supply, Digital：2.7V ~ 5.5V
- Features：-
- 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：-
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Overview
The AD7812YRUZ-REEL7 is an 8-channel, 10-bit successive approximation analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It operates from a single 2.7 V to 5.5 V supply and features a conversion time of 2.3 µs with a throughput rate up to 350 kSPS. The device integrates a track-and-hold amplifier and a 2.5 V on-chip reference with ±2.5% accuracy. It supports a DSP-compatible serial interface and includes hardware and software control for power-down modes.
Feature Summary
- Eight single-ended input channels configurable as pseudo-differential pairs via the control register
- Integrated 2.5 V reference circuitry with external reference capability
- Hardware and software control for automatic power-down between conversions
- Package address pin allows sharing of the serial bus in multipackage applications
Applications
- Data acquisition systems requiring multiple analog inputs
- Industrial process control monitoring
- Battery-powered instrumentation due to low power consumption
Procurement Notes
Verify the REEL7 suffix indicates tape and reel packaging when sourcing. Confirm the Y version meets the specified linearity and accuracy requirements. Ensure the component matches the TSSOP package outline for PCB layout compatibility.
Selection Notes
Select this model for applications requiring eight channels with 10-bit resolution. Consider the AD7811 if only four channels are needed. Verify that the serial interface timing aligns with the host microcontroller or DSP capabilities.
Part Context
This part belongs to the AD7811/AD7812 family of high-speed, low-power sampling ADCs. The AD7812 variant specifically provides eight input channels compared to the four channels in the AD7811. Both share identical core architecture and performance specifications.
Replacement Considerations
The AD7811 serves as a functional substitute if fewer than five channels are required. Other 10-bit SAR ADCs may be considered but require verification of channel count, interface compatibility, and power specifications.
