AMC1336 Texas instruments

AMC1336

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AMC1336

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Описание

The AMC1336 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 the AMC1336 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 is supplied by a 3.3-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 performance is specified over the extended industrial temperature range of –40°C to +125°C.

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: ±0.25% (max)
- Gain drift: ±40 ppm/°C (max)
Transient immunity: 115 kV/µs (typ)
Missing high-side supply detection
Safety-related certifications:
- 8000-V_PEAK reinforced isolation per DIN VDE V 0884-11: 2017-01
- 5700-V_RMS isolation for 1 minute per UL1577
- IEC 62368-1 end equipment standard

Device type	Voltage sensing
Peak-to-peak input voltage range (V)	1V
Interface type	Serial CMOS
Sample rate (max) (Msps)	21
Rating	Catalog
CMTI (min) (kV/µs)	80
Number of input channels	1
Architecture	Delta-Sigma
SNR (dB)	87
Operating temperature range (°C)	-40 to 125
Power consumption (typ) (mW)	33.7
SFDR (dB)	92
Isolation rating	Reinforced
Withstand isolation voltage (VISO) (Vrms)	5700
Working isolation voltage (VIOWM) (Vrms)	1500
Transient isolation voltage (VIOTM) (VPK)	8
Creepage (min) (mm)	8.5
Clearance (min) (mm)	8.5