AMC1203DUBG4

Analog To Digital Converters (ADC) Overview

The AMC1203DUBG4 is a second-order, isolated delta-sigma modulator manufactured by Texas Instruments. It features a 1-bit output operating at a 10 MHz data rate and provides 16-bit resolution equivalent performance when paired with an external digital filter. The device supports a sampling rate of 40 kS/s with differential input configuration. It operates on dual power supplies ranging from 4.5 V to 5.5 V for both analog and digital domains. Key electrical specifications include a signal-to-noise ratio (SNR) of 85 dB, spurious-free dynamic range (SFDR) of 95 dB, and integral nonlinearity (INL) of ±9 LSB. The component is housed in an 8-pin SOP package and functions within a temperature range of -40°C to +105°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrated galvanic isolation barrier enables safe signal transmission between high-voltage primary side and low-voltage secondary side circuits.
• Second-order sigma-delta modulation architecture converts analog inputs into a 1-bit bitstream suitable for downstream digital filtering.
• Internal reference voltage source eliminates the need for external precision references, simplifying system design.

Analog To Digital Converters (ADC) Applications

• Current-shunt measurement in motor control and power conversion systems
• Isolated data acquisition channels for industrial process control
• Energy metering applications requiring high linearity and isolation

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix G4 against the manufacturer's current datasheet to confirm RoHS compliance status and pinout compatibility. Ensure the ordering part number matches the exact package variant required for the PCB footprint. Cross-reference the revision level with the latest TI documentation to avoid discrepancies in electrical parameters or thermal characteristics during procurement.

Analog To Digital Converters (ADC) Selection Notes

Select this component when designing systems that require high-resolution ADC functionality combined with reinforced isolation barriers. It is appropriate for applications needing a simple serial interface to communicate with microcontrollers or DSPs. Consider the external digital filter requirements for achieving the specified 16-bit resolution and bandwidth limitations inherent to sigma-delta architectures.

Analog To Digital Converters (ADC) Part Context

This part belongs to the AMC1203 family of isolated delta-sigma modulators designed by Texas Instruments. It serves as a bridge between analog sensor signals and digital processing units while maintaining electrical isolation. The DUBG4 designation indicates a specific tape-and-reel or tube packaging option with lead-free finish compliant with environmental directives.

Analog To Digital Converters (ADC) Replacement Considerations

AMC1203DUBR

Analog To Digital Converters (ADC) FAQ

What is the maximum operating frequency of the modulator output?

The AMC1203DUBG4 operates with a modulator output frequency of 10 MHz.

Does the device include an internal voltage reference?

Yes, the AMC1203 includes an internal reference voltage, reducing the need for external components.

What is the recommended supply voltage range?

Both the analog and digital supply voltages should be maintained between 4.5 V and 5.5 V for optimal performance.