ADS574JPG4

Analog To Digital Converters (ADC) Overview

The ADS574JPG4 is a 12-bit successive approximation analog-to-digital converter (ADC) manufactured by Texas Instruments, utilizing low-power CMOS technology and an innovative capacitor array (CDAC). It operates from a single +5V supply with optional VEE for mode control. The device integrates an internal clock, microprocessor interface, three-state outputs, and scaling resistors for input ranges of 0V to +10V, 0V to +20V, ±5V, or ±10V. Maximum throughput time for 12-bit conversions is 25 μs, supporting a sampling rate of 40 kHz. Power dissipation is 100 mW maximum.

Analog To Digital Converters (ADC) Feature Summary

• Complete 12-bit ADC with internal sampling, reference, clock, and microprocessor interface.
• Fast acquisition and conversion: 25 μs max throughput time at 40 kHz sampling rate.
• Eliminates external sample/hold amplifiers in most applications via internal S/H circuit.
• Single +5V supply operation with low power consumption of 100 mW max.

Analog To Digital Converters (ADC) Applications

• Microprocessor-based data acquisition systems requiring drop-in replacement for ADC574.
• Industrial process control systems needing guaranteed AC and DC performance.
• Battery-powered instruments benefiting from single-supply low-power operation.

Analog To Digital Converters (ADC) Procurement Notes

Verify the package type corresponds to the 'JP' suffix, which indicates a 0.6-inch wide plastic DIP-28. Confirm that the 'G4' suffix denotes lead-free composition and RoHS compliance as per manufacturer standards. Ensure the operating temperature range matches the specific grade (JE vs KE) required for the application environment.

Analog To Digital Converters (ADC) Selection Notes

Select the ADS574JPG4 when a 12-bit resolution with 40 kHz throughput is required without external sample/hold components. Choose this part over standard bipolar ADCs for lower power consumption and single-supply compatibility. Verify input voltage ranges match the internal scaling resistors (0-10V, 0-20V, ±5V, ±10V) to avoid external attenuation circuits.

Analog To Digital Converters (ADC) Part Context

The ADS574 series serves as a direct drop-in replacement for the older ADC574 models, offering improved power efficiency and single-supply operation. The 'JP' designation specifies the 0.6-inch DIP package, while 'G4' typically indicates environmental compliance features such as lead-free terminations. This component belongs to Burr-Brown's legacy CMOS ADC portfolio now managed by Texas Instruments.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS574 is explicitly designed to replace the ADC574 in existing designs. When substituting, ensure VEE pin configuration matches the desired sampling mode (Control vs. Emulation). Verify that the PCB footprint accommodates the 0.6-inch DIP width if replacing a narrower variant.