LTC1279IG#TRPBF

Analog To Digital Converters (ADC) Overview

The LTC1279IG#TRPBF is a 12-bit, 600ksps sampling A/D converter in a 24-lead SO Wide package. It operates from a single 5V or ±5V supply with typical power dissipation of 60mW and 8.5mW in shutdown mode. The device features an internal synchronized clock, a precision reference, and a flexible parallel interface. Key electrical parameters include a 600kHz maximum sampling frequency, 1.4μs conversion time, and 160ns acquisition time. AC performance specifies 70dB S/(N + D) at 100kHz input and ±1LSB INL/DNL linearity.

Analog To Digital Converters (ADC) Feature Summary

• Integrated sample-and-hold circuit with internal synchronized clock eliminates external clock noise issues.
• Flexible parallel interface with separate conversion start and data-ready signals simplifies DSP connections.
• Power shutdown capability with instant wake-up reduces average power consumption during inactive periods.
• Internal reference can be overdriven externally to adjust input span for unipolar or bipolar operation.

Analog To Digital Converters (ADC) Applications

• High speed data acquisition systems
• Multiplexed data acquisition applications
• Digital signal processing interfaces
• Audio and telecom processing circuits

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing this component. Confirm the 'I' grade designation matches the required industrial temperature range of -40°C to 85°C for your application environment. Ensure compatibility with the 24-lead SO Wide footprint during PCB layout finalization.

Analog To Digital Converters (ADC) Selection Notes

Select this part for applications requiring moderate resolution with high throughput and low power consumption. The internal clock simplifies design by removing external clock generation requirements. Consider the parallel interface complexity if pin count is constrained, as it requires twelve digital output lines plus control signals.

Analog To Digital Converters (ADC) Part Context

This component belongs to the LTC1279 family of 12-bit successive approximation ADCs. It is manufactured by Analog Devices Inc. (formerly Linear Technology). The device is designed for general-purpose analog-to-digital conversion tasks where power efficiency and ease of microprocessor interfacing are primary design constraints.

Analog To Digital Converters (ADC) Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify pinout and parameter compatibility before considering any alternative devices from other manufacturers.

Analog To Digital Converters (ADC) FAQ

How does the LTC1279 handle clock synchronization?

The device features an internally trimmed clock that automatically synchronizes to each sample command, eliminating problems associated with asynchronous clock noise found in competitive devices.

What is the power consumption in shutdown mode?

In power shutdown mode, the LTC1279 draws only 8.5mW typically, allowing the converter to be powered down during brief inactive periods with instant wake-up capability.

Can the internal reference be used externally?

Yes, the internal reference output is available at Pin 2 and can be overdriven externally to provide input span adjustment in bipolar mode, provided the voltage is between 2.45V and 4.8V.