Texas Instruments AMC1204 Delta-Sigma ModulatorsTexas Instruments AMC1204 second-order, isolated delta-sigma modulators can be clocked at up to 20MHz. The TI AMC1204 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 differential inputs easily connect to the shunt resistor or other low-level signal sources. The AMC1204EVM is a full-featured evaluation module for the AMC1204.
Features
- ±250mV Input Voltage Range Optimized for Shunt Resistors
- Certified Digital Isolation:
- CSA, IEC60747-5-2, and UL1577 Approved
- Isolation Voltage: 4000VPEAK
- Working Voltage: 1200VPEAK
- Transient Immunity: 15kV/µs
- Long Isolation Barrier Lifetime
- High Electromagnetic Field Immunity
- Outstanding AC Performance:
- SNR: 84dB (min)
- THD: -80dB (max)
- Excellent DC Precision:
- INL: ±8LSB (max)
- Gain Error: ±2% (max)
- 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
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