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 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-Q1 performance is specified over the extended industrial temperature range of –40°C to +125°C.
| Device type | Voltage sensing |
| Peak-to-peak input voltage range (V) | 1V |
| Interface type | Serial CMOS |
| Sample rate (max) (Msps) | 21 |
| Rating | Automotive |
| 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 |
| SOIC (DWV) | 8 | 67.275 mm² 5.85 x 11.5 |