Overview
The AMC1204BDWV, produced by Texas Instruments, is a 1-bit, 20-MHz, second-order, isolated delta-sigma modulator. This component is designed for high-precision current measurement across an isolated barrier, making it ideal for applications in motor control inverters, green energy generation systems, and other industrial environments. The AMC1204BDWV features a single-chip solution with differential inputs that can easily connect to shunt resistors or other low-level signal sources. It operates with an internal reference, eliminating the need for external components, and supports a wide range of supply voltages.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 1 |
| Analog Voltage (AVDD) | 4.5 V to 5.5 V |
| Digital Supply (DVDD) | 3 V to 5.5 V |
| Input Range | ±250 mV |
| Resolution | 16 bits |
| Sample Rate | Up to 78 kSPS |
| Operating Temperature Range | -40°C to 125°C |
| Isolation Voltage | Up to 4250 V PEAK (AMC1204B) |
| Package Type | 8-SOIC (DWV) |
| Power Consumption (Typical) | 88 mW |
| SINAD | 84 dB (minimum) |
| THD | -80 dB (maximum) |
| INL | ±8 LSB (maximum) |
Key Features
- High-precision current measurement with ±250-mV input voltage range optimized for shunt resistors.
- Safety-related certifications including 4250-V PEAK basic isolation per DIN VDE V 0884-11 and 3005-V RMS isolation for 1 minute per UL1577.
- Transient immunity of 15 kV/µs and high electromagnetic field immunity.
- Outstanding AC performance with SNR of 84 dB (minimum) and THD of -80 dB (maximum).
- Excellent DC precision with INL of ±8 LSB (maximum) and gain error of ±2% (maximum).
- External clock input for easier synchronization.
- Fully specified over the extended industrial temperature range.
Applications
The AMC1204BDWV is particularly suited for various industrial applications, including:
- Motor control inverters: For precise current sensing in motor control systems.
- Green energy generation systems: Such as wind and solar power systems where accurate current measurement is crucial.
- Industrial automation: For monitoring and controlling industrial processes.
- Power supplies and power management systems: Where isolated current measurement is necessary.
Q & A
- What is the primary function of the AMC1204BDWV?
The AMC1204BDWV is a 1-bit, 20-MHz, second-order, isolated delta-sigma modulator designed for high-precision current measurement across an isolated barrier. - What are the typical applications of the AMC1204BDWV?
It is used in motor control inverters, green energy generation systems, industrial automation, and power supplies and power management systems. - What is the input voltage range of the AMC1204BDWV?
The input voltage range is ±250 mV. - What is the resolution of the AMC1204BDWV?
The resolution is 16 bits. - What is the maximum sample rate of the AMC1204BDWV?
The maximum sample rate is up to 78 kSPS. - What are the safety certifications of the AMC1204BDWV?
It has certifications including 4250-V PEAK basic isolation per DIN VDE V 0884-11 and 3005-V RMS isolation for 1 minute per UL1577. - What is the operating temperature range of the AMC1204BDWV?
The operating temperature range is -40°C to 125°C. - What type of package does the AMC1204BDWV come in?
It comes in an 8-SOIC (DWV) package. - What is the typical power consumption of the AMC1204BDWV?
The typical power consumption is 88 mW. - Does the AMC1204BDWV have external clock input capability?
Yes, it has an external clock input for easier synchronization.
