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AD7911AUJ-R2
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Product Detailed Parameters
- Description：IC ADC 10BIT 250KSPS TSOT23-8
- Series：-
- Mfr：Analog Devices Inc.
- Package：Bulk
- Number of Bits：10
- Sampling Rate (Per Second)：250k
- Number of Inputs：-
- Input Type：-
- Data Interface：SPI, DSP
- Configuration：-
- Ratio - S/H:ADC：-
- Number of A/D Converters：1
- Architecture：-
- Reference Type：-
- Voltage - Supply, Analog：-
- Voltage - Supply, Digital：-
- Features：-
- Operating Temperature：-40°C ~ 85°C
- Package / Case：SOT-23-8 Thin, TSOT-23-8
- Supplier Device Package：TSOT-23-8
- Mounting Type：Surface Mount
- Grade：-
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Overview
The AD7911AUJ-R2 is a dual-channel, 10-bit successive approximation analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It operates from a single supply voltage ranging from 2.35 V to 5.25 V and supports throughput rates up to 250 kSPS. The device features an internal track-and-hold amplifier capable of handling input frequencies exceeding 6 MHz. Power consumption is specified at a maximum of 20 mW at 5 V and 6 mW at 3 V during operational mode, with a full power-down current of 1 μA maximum. The component utilizes a flexible serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards.
Feature Summary
- Dual-channel architecture with on-chip multiplexing for sequential conversion
- Internal reference derived directly from the power supply rail
- Flexible power management with low standby current consumption
- Standard serial interface supporting multiple digital communication protocols
Applications
- Battery-powered portable systems
- Medical instrumentation devices
- Mobile communications equipment
- Industrial data acquisition systems
Procurement Notes
Verify the specific ordering suffix against official manufacturer documentation to confirm package type and tape/reel specifications. Ensure compatibility with required operating temperature ranges and voltage levels before integration. Cross-reference part numbers with authorized distributors to confirm availability and authenticity.
Selection Notes
Select this component when a low-power, dual-channel ADC is required for space-constrained designs. The internal reference simplifies circuit design by eliminating external components. Verify that the system clock speed aligns with the desired throughput rate and that the input signal range matches the supply voltage limits.
Part Context
This component belongs to the AD7911/AD7921 family of high-speed, low-power ADCs. The AD7911 variant provides 10-bit resolution, while the AD7921 offers 12-bit resolution. Both share identical pinouts, power requirements, and interface characteristics, differing primarily in resolution and associated linearity specifications.
Replacement Considerations
The AD7921AUJ-R2 serves as a higher-resolution alternative within the same package and interface ecosystem. Other members of the AD791x series may offer different resolutions or performance trade-offs but maintain functional compatibility.
