ADS7804PG4

Analog To Digital Converters (ADC) Overview

The ADS7804PG4 is a 12-bit analog-to-digital converter (ADC) manufactured by Texas Instruments. It features four single-ended input channels and utilizes a successive approximation register (SAR) architecture. The device operates with a sampling rate of 200 kSPS and supports a serial interface for data output. It functions within an analog supply voltage range of 4.75 V to 5.25 V and a digital supply voltage range of 2.7 V to 5.25 V. The component is housed in a 28-pin DIP package and is designed for operation across a temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• Four-channel multiplexed input structure for multi-point signal acquisition
• High-resolution 12-bit conversion capability using SAR technology
• Integrated sample-and-hold circuitry for accurate signal capture
• Serial communication interface compatible with standard microcontrollers

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring multi-channel monitoring
• Data acquisition modules for environmental sensing
• Battery-powered instrumentation utilizing low-voltage digital interfaces
• Medical equipment signal conditioning front-ends

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix PG4 indicates lead-free tin termination and RoHS compliance when sourcing. Confirm the package type matches the required DIP-28 footprint for PCB layout. Ensure the operating voltage requirements align with the system's power rails, as the analog and digital supplies have different minimum thresholds. Check for obsolescence status through official manufacturer channels before finalizing design-in decisions.

Analog To Digital Converters (ADC) Selection Notes

Select this component when four independent single-ended signals require simultaneous or sequential digitization at moderate speeds. The SAR architecture offers a balance between speed and power consumption suitable for battery-operated devices. Consider the serial interface complexity against parallel alternatives if pin count is constrained. Verify that the input voltage ranges do not exceed the absolute maximum ratings to prevent device damage during normal operation.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS780x family of high-speed, low-power ADCs from Texas Instruments. The family includes variants with different channel counts and resolution options. The ADS7804 specifically provides four channels, distinguishing it from single-channel models like the ADS7801 or higher-density options. The PG4 suffix denotes the specific packaging and environmental compliance configuration within this product line.

Analog To Digital Converters (ADC) Replacement Considerations

Direct functional substitutes include other members of the ADS780x series such as the ADS7805 or ADS7806, provided pin compatibility and channel requirements match. Cross-reference with the ADS7824 for similar performance but verify interface differences. Always validate electrical specifications and thermal characteristics against the original design requirements before substituting.