Texas Instruments AMC1204/-Q1 Delta-Sigma Modulators
Texas Instruments AMC1204/-Q1 second-order, isolated delta-sigma modulators can be clocked at up to 20MHz. TI AMC1204/-Q1 provides a single-chip solution for measuring the small signal of a shunt resistor across an isolated barrier. These TI delta-sigma modulators are used to sense currents in motor control inverters, green energy generation systems, and other industrial applications. The AMC1204/-Q1 differential inputs easily connect to the shunt resistor or other low-level signal sources. The AMC1204-Q1 devices are AEC-Q100 qualified for automotive applications.
Features
- ±250mV input voltage range optimized for shunt resistors
- Certified digital isolation
- CSA, IEC60747-5-2, and UL1577 approved
- 4250VPEAK (AMC1204B) isolation voltage
- 1200VPEAK working voltage
- 15kV/µs transient immunity
- Long isolation barrier lifetime
- High electromagnetic field immunity
- Outstanding AC performance
- 84dB (min) SNR
- -80dB (max) THD
- Excellent DC precision
- ±8LSB (max) INL
- ±2% (max) gain error
- External clock input for easier synchronization
- Fully specified over the extended industrial temperature range
Applications
- Shunt resistor based current sensing in
- Motor control
- Green energy
- Inverter applications
- Uninterruptible power supplies
Datsheets
Block Diagram
View Related Isolation Amps
Texas Instruments AMC1200/AMC1200B Differential Isolation Amps
Features ±250mV input voltage range optimized for shunt resistors.
Published: 2011-06-27
| Updated: 2022-08-16