AMC3306M05DWER集成电路（IC）的ADC/DAC-特殊用途规格书PDF中文资料

AMC3306M05DWER属于集成电路（IC）的ADC/DAC-特殊用途。由德州仪器制造生产的AMC3306M05DWERADC/DAC - 特殊用途该产品族中的产品可用于模拟和数字表示的信息转换，适用于特定用例，或集成了通用数据转换器中不常见的其他功能。例如针对超声或汽车雷达应用集成了低噪声放大器和可变增益级的器件、注重音频和视频的产品、在段码式显示器上集成显示测量值功能的器件、集成输入输出电气隔离的器件等。

1 Features

• 3.3-V or 5-V single supply with integrated DC/DC

converter

• ±50-mV input voltage range optimized for current

measurement using shunt resistors

• Low DC errors:

– Offset error: ±50 μV (max)

– Offset drift: ±0.4 μV/°C (max)

– Gain error: ±0.2% (max)

– Gain drift: ±35 ppm/°C (max)

• High CMTI: 75 kV/μs (min)

• System-level diagnostic features

• Low EMI: meets CISPR-11 and CISPR-25

standards

• Safety-related certifications:

– 6000-VPEAK reinforced isolation per DIN VDE V

0884-11

– 4250-VRMS isolation for 1 minute per UL1577

• Fully specified over the extended industrial

temperature range: –40°C to +125°C

2 Applications

• Compact, isolated shunt-based current sensing in:

– Protection relays

– Motor drives

– Power supplies

– Photovoltaic inverters

3 Description

The AMC3306M05 is a precision, isolated delta-sigma

(ΔΣ) modulator, optimized for shunt-based current

measurements. The fully integrated, isolated DC/DC

converter allows single-supply operation from the

low-side of the device which makes the device a

unique solution for space-constrained applications.

The reinforced capacitive isolation barrier is certified

according to VDE V 0884-11 and UL1577 and

supports a working voltage of up to 1.2 kVRMS.

The isolation barrier separates parts of the system

that operate on different common-mode voltage levels

and protects the low-voltage side from hazardous

voltages and damage.

The input of the AMC3306M05 is optimized for direct

connection to a low-impedance shunt resistor or other,

low-impedance voltage source with low signal levels.

The excellent DC accuracy and low temperature

drift supports accurate current measurments over the

extended industial temperature range from –40°C to

+125°C.

By using a digital filter (such as a sinc3 filter) to

decimate the bitstream, the device can achieve 16

bits of resolution with a dynamic range of 85 dB at a

data rate of 78 kSPS.