描述 Description

The AMC1336-Q1 is a precision, delta-sigma (ΔΣ) modulator with the output separated from the input circuitry by a capacitive double isolation barrier that is highly resistant to magnetic interference. This barrier is certified to provide reinforced isolation of up to 8000 VPEAK according to the DIN VDE V 0884-11 and UL1577 standards. Used in conjunction with isolated power supplies, this isolated modulator separates parts of the system that operate on different common-mode voltage levels and protects lower-voltage parts from damage.

The unique wide, bipolar. ±1-V input voltage range of theAMC1336-Q1 and its high input resistance support direct connection of the device to resistive dividers in high-voltage applications. When used with a digital filter (for instance, as integrated in the TMS320F28004x, TMS320F2807x, or TMS320F2837x microcontroller families) to decimate the output bitstream, the device can achieve 16 bits of resolution with a dynamic range of 87 dB at a data rate of 82?kSPS.

On the high-side, the AMC1336-Q1 is supplied by a3.3-V or 5-V power supply. The isolated digital interface operates from a 3.0-V, 3.3-V or 5-V power supply.

The AMC1336-Q1 performance is specified over the extended industrial temperature range of –40°C to +125°C.

特性 Features

? AEC-Q100 qualified for automotive applications:
? Temperature grade 1: –40°C to 125°C, TA

? Input structure optimized for voltage measurements:
? Input voltage range: ±1 V
? Input resistance: 1.5 GΩ (typ)

? Excellent DC performance:
? Offset error: ±0.5 mV (max)
? Offset drift: ±4 μV/°C (max)
? Gain error: ±0.2% (max)
? Gain drift: ±40 ppm/°C (max)

? Transient immunity: 115 kV/μs (typ)
? Missing high-side supply detection
? Safety-related certifications:
? 8000-VPEAK reinforced isolation per DIN VDE V 0884-11: 2017-01
? 5700-VRMS isolation for 1 minute per UL1577
? IEC 62368-1 end equipment standard