AD7887ARMZ

AD7887ARMZ is an 8-channel, 12-bit, multiplexed analog-to-digital converter from Analog Devices. It converts eight analog inputs into a single 12-bit digital word and outputs the result via a serial interface (SPI-compatible). The device uses a successive-approximation (SAR) architecture with a sample-and-hold front end, accepts an external reference, and supports multiplexed single-ended inputs. It’s designed for low power and compact instrumentation/control applications where multiple sensor signals must be digitized with one ADC. The ARMZ suffix indicates a RoHS-compliant surface-mount package. For exact specs (sampling rate, input ranges, reference options, power, timing) and pinout, consult the AD7887 datasheet on Analog Devices’ website or distributor catalogs.

Equivalents depend on interface and packaging. For similar 12-bit, ~1 MSPS ADCs with SPI, common cross-refs include Microchip MCP3204/3208 and TI ADS7824/ADS7844. Within Analog Devices, closest peers are other 12-bit, high-speed ADCs in the same family. To give precise substitutes, please specify the required interface (SPI/3-wire), supply voltage, and package (MSOP8/DIP8).

AD7887ARMZ Features:
- 12-bit resolution
- 8-channel input multiplexer
- Successive-approximation register (SAR) ADC with track-and-hold
- SPI-compatible serial interface (clock, data out, chip select)
- External reference input (VREF) for full-scale range
- Unipolar input range (0 to VREF)
- Single-supply operation
- Low power modes and optional power-down
- Suitable for channel-scanning of multiplexed inputs
- Internal input protection on analog channels
- RoHS/compliant packaging (ARMZ variant)
Note: For exact electrical specs and temperature range, consult the AD7887 datasheet.

AD7887ARMZ is an 8-pin device in the ARMZ package. It is a 12‑bit, 1 MSPS analog‑to‑digital converter with a serial (SPI‑like) interface.
Pin functions (typical 8-pin MSOP/SOIC):
- VDD, GND
- CS (chip select)
- SCLK (serial clock)
- DIN (data input)
- DOUT (data output)
- CONVST (convert start)
- RDY (data ready/busy indication)
Note: exact pin names may vary by revision, but the 8‑pin SPI‑style interface and CONVST/RDY signals are standard.

Manufacturer: Analog Devices, Inc. (ADI).
What kind of company: An American multinational semiconductor company that designs and manufactures analog, mixed-signal, and DSP integrated circuits (e.g., data converters, amplifiers, sensors). Headquartered in Norwood, Massachusetts; known for high-performance analog and mixed-signal technologies.

AD7887ARMZ is a 12-bit, 1 MSPS, serial (SPI-compatible) ADC. Common application areas include:
- Data acquisition systems and industrial process control
- Instrumentation, test and measurement equipment
- Automotive sensing and motor-control applications (voltage/current sensing)
- Medical and portable instrumentation requiring fast conversion
- Laboratory instrumentation and dedicated measurement modules
These areas leverage its balance of resolution, speed, and a simple serial interface for compact, cost-effective measurement subsystems.

8-lead MSOP package (MSOP-8), RoHS-compliant.