LTC1643HCGN

The LTC1643HCGN is a Linear Technology (now Analog Devices) high-speed analog-to-digital converter (ADC). It integrates an ADC core with a serial data output and is offered in a RoHS-compliant package; the HCGN suffix encodes the specific package and temperature/lead-free variant.
Key points
- Serial (SPI-like) digital interface for host microcontrollers
- Front-end suitable for instrumentation and data-acquisition applications
- Includes reference options and track/hold behavior typical of precision ADCs
- Designed for low power consumption within its class
- Package/variant indicated by the HCGN suffix (lead-free, temperature grade, and pinout specifics)
Typical applications
- Data acquisition systems, instrumentation, process control, sensor front-ends
Note
- For exact capabilities (bit resolution, sampling rate, input ranges, power, and the precise package), consult the official LTC1643HCGN datasheet and product page.

Equivalent parts depend on exact specs (resolution, speed, interface, package). For 8-channel SPI ADCs similar to LTC1643HCGN, consider:
- Microchip MCP3208 (12-bit, 8-channel, SPI)
- TI ADS7828/ADS7824 (12-bit, 8-channel)
- Analog Devices AD7893/AD7899 (12-bit, 8-channel)
Use DigiKey/Analog Devices cross-reference or Linear Technology cross-reference tools to confirm true equivalents.

Pin count: 8 pins (MSOP-8/SO-8 package).
Function: Dual 12-bit analog-to-digital converter with a serial (SPI-compatible) interface.

- Manufacturer: Analog Devices, Inc. (ADI). The LTC1643HCGN was originally from Linear Technology, which was acquired by Analog Devices in 2017; the LTC1643 product line is now under ADI.
- What kind of company: A global American semiconductor company that designs and manufactures analog, mixed-signal, and power-management integrated circuits for electronics applications.

Possible application areas for the LTC1643HCGN:
- Portable, battery-powered devices (handhelds, wearables, cameras)
- Automotive and industrial power management (local rails from main supplies)
- Telecom and networking equipment power supplies
- Embedded computing and PMICs (point-of-load regulation for CPUs/ASICs/FPGA)
- Industrial controls, instrumentation and sensors
- Energy-harvesting, off-grid and backup power applications
- Medical devices requiring compact, efficient DC-DC regulation
Note: The LTC1643HCGN is a high-efficiency switching regulator suitable for compact, low-noise power conversion in these domains.

LTC1643HCGN is in an 8-pin MSOP (small-outline) package, Pb-free and RoHS-compliant.