AMC1204 - 1 位 20MHz 二阶隔离式 Δ-Σ 调制器

AMC1204是TI德州仪器公司的一款隔离式ADC产品，AMC1204是1 位 20MHz 二阶隔离式 Δ-Σ 调制器，本站介绍了AMC1204的封装应用图解、特点和优点、功能等，并给出了与AMC1204相关的TI元器件型号供参考。

AMC1204 - 1 位 20MHz 二阶隔离式 Δ-Σ 调制器 - 隔离式ADC - 模数转换器 - 德州仪器

产品特性

±250-mV Input Voltage Range Optimized for Shunt Resistors
Certified Digital Isolation:
- CSA, VDE V 0884-10, and UL1577 Approved
- Isolation Voltage: 4250 VPEAK (AMC1204B)
- Working Voltage: 1200 VPEAK
- Transient Immunity: 15 kV/µs
Long Isolation Barrier Lifetime (see Application Report SLLA197)
High Electromagnetic Field Immunity (see Application Note SLLA181A)
Outstanding AC Performance:
- SNR: 84 dB (Minimum)
- THD: –80 dB (Maximum)
Excellent DC Precision:
- INL: ±8LSB (Maximum)
- Gain Error: ±2% (Maximum)
External Clock Input for Easier Synchronization
Fully Specified Over the Extended Industrial Temperature Range

产品应用

Shunt Resistor Based Current Sensing in:
- Motor Control
- Green Energy
- Inverter Applications
- Uninterruptible Power Supplies

产品说明

The AMC1204 and AMC1204B are 1-bit digital output, isolated delta-sigma (ΔΣ) modulators that can be clocked at up to 20 MHz. The digital isolation of the modulator output is provided by a silicon dioxide (SiO2) barrier that is highly resistant to magnetic interference. This barrier has been certified to provide basic galvanic isolation of up to 4000 VPEAK (AMC1204) and 4250 VPEAK (AMC1204B) according to UL1577, VDE V 0884-10, and CSA standards or specifications.

The AMC1204 and AMC1204B provide a single-chip solution for measuring the small signal of a shunt resistor across an isolated barrier. These types of resistors are typically used to sense currents in motor control inverters, green energy generation systems, and other industrial applications. The AMC1204 and AMC1204B differential inputs easily connect to the shunt resistor or other low-level signal sources. An internal reference eliminates the need for external components. When used with an appropriate external digital filter, an effective number of bits (ENOB) of 14 is achieved at a data rate of 78 kSPS.

A 5-V analog supply (AVDD) is used by the modulator while the isolated digital interface operates from a 3-V, 3.3-V, or 5-V supply (DVDD). The AMC1204 and AMC1204B are available in SOIC-16 (DW) and SOIC-8 (DWV) packages and are specified from –40°C to 105°C.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
AMC1204	SOIC (16)	10.30 mm × 7.50 mm
AMC1204	SOIC (8)	5.85 mm × 7.50 mm

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