LTC1290BCSW#PBF

Analog To Digital Converters (ADC) Overview

The LTC1290BCSW#PBF is a single-chip 12-bit data acquisition system manufactured by Analog Devices Inc. It integrates an 8-channel analog multiplexer, sample-and-hold circuit, and successive approximation A/D converter. The device supports unipolar or bipolar conversions with a maximum throughput rate of 50kHz. It operates on a single +5V supply or ±5V supplies, drawing 6.0mA. The component features a full-duplex serial interface compatible with industry standards, allowing direct connection to microprocessors. It is housed in a 20-lead SOIC Wide package.

Analog To Digital Converters (ADC) Feature Summary

• Integrated 12-bit SAR ADC with 8-channel input multiplexer
• Software programmable for unipolar/bipolar modes and data word length (8, 12, or 16 bits)
• Full-duplex serial I/O interface compatible with SPI and Microwire protocols
• On-chip sample-and-hold for all single-ended input channels

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring multi-channel signal acquisition
• Data logging equipment with low-power shutdown capabilities
• Microprocessor-based measurement systems interfacing via serial ports

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix #PBF indicates lead-free compliance. Confirm the BC temperature grade corresponds to the required operating range of 0°C to 70°C. Ensure the SW package type matches the PCB footprint design. Check current availability status as distribution may vary.

Analog To Digital Converters (ADC) Selection Notes

Select this part for applications requiring an integrated 8-channel MUX and 12-bit resolution. The BC grade is suitable for commercial temperature ranges. Consider the 50kHz throughput limit when designing sampling rates. Verify that the serial interface timing meets the microprocessor's clock requirements.

Analog To Digital Converters (ADC) Part Context

This component belongs to the LTC1290 family of general-purpose SAR ADCs. The B suffix denotes the electrical grade, while the C specifies the commercial temperature range. The SW suffix identifies the 20-lead plastic SOIC Wide package. Other variants include PDIP and ceramic DIP packages.

Analog To Digital Converters (ADC) Replacement Considerations

LTC1290BISW#TRPBF: Equivalent parameter substitute with extended industrial temperature range (-40°C to 85°C).

Analog To Digital Converters (ADC) FAQ

What is the maximum shift clock frequency?

The maximum shift clock (SCLK) frequency is 2.0 MHz when VCC is 5V.

How is power consumption managed?

The device can be powered down via the serial interface, reducing supply current to approximately 5µA when ACLK is off.

Can the input channels be configured as differential?

Yes, the multiplexer can be configured for four differential pairs or eight single-ended inputs via software commands.