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AD7908BRUZ-REEL
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Product Detailed Parameters
- Description：IC ADC 8BIT SAR 20TSSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Number of Bits：8
- Sampling Rate (Per Second)：1M
- Number of Inputs：8
- Input Type：Single Ended
- Data Interface：SPI, DSP
- Configuration：MUX-S/H-ADC
- Ratio - S/H:ADC：1:01
- Number of A/D Converters：1
- Architecture：SAR
- Reference Type：External
- Voltage - Supply, Analog：2.7V ~ 5.25V
- Voltage - Supply, Digital：2.7V ~ 5.25V
- Features：-
- Operating Temperature：-40°C ~ 85°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 AD7908BRUZ-REEL is an 8-bit, 8-channel successive approximation analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It operates from a single 2.7 V to 5.25 V supply and achieves throughput rates up to 1 MSPS. The device features eight single-ended analog inputs with a programmable channel sequencer and a wide bandwidth track-and-hold amplifier capable of handling input frequencies exceeding 8 MHz. Power dissipation is specified at 6 mW maximum at 1 MSPS with a 3 V supply and 13.5 mW maximum at 1 MSPS with a 5 V supply. The component utilizes a high-speed serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards.
Feature Summary
- Integrated channel sequencer for automated sequential conversion of multiple single-ended inputs
- VDRIVE function enabling direct connection to 3 V or 5 V processor systems independent of the analog supply voltage
- Flexible power management through auto shutdown and full shutdown modes to minimize current consumption during low throughput operations
Applications
- Industrial process control systems requiring multi-channel data acquisition
- Automotive sensor signal conditioning and monitoring applications
- Portable instrumentation utilizing battery-powered single-supply operation
Procurement Notes
Verify that the specific ordering suffix matches the required package type and reel configuration. Confirm that the B version temperature range aligns with the operational environment requirements. Ensure compatibility with external reference voltages and logic levels before finalizing procurement specifications.
Selection Notes
Select this component when eight single-ended channels are required within a compact 20-lead TSSOP footprint. Consider the AD7918 or AD7928 variants if higher resolution is necessary for the application. Evaluate the power consumption profiles against the system's throughput requirements to optimize battery life in portable designs.
Part Context
This part belongs to the AD7908/AD7918/AD7928 family of high-speed, low-power ADCs. All members share identical pinouts, serial interfaces, and functional architectures, differing primarily in resolution. The BRUZ designation indicates a commercial grade temperature range in a TSSOP package, while REEL specifies tape and reel packaging for automated assembly.
Replacement Considerations
The AD7908BRU-REEL serves as a standard tube-packaged alternative to the reel variant. Other family members such as the AD7918BRUZ and AD7928BRUZ offer pin-compatible upgrades with increased resolution.
