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AMC23C14

ACTIVE

Dual, fast-response, reinforced, isolated window comparator with adjustable threshold

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Data sheet

AMC23C14

ACTIVE
Data sheet Order now

Product details

Number of channels 2 Output type Open-drain Propagation delay time (µs) 0.36 CMTI (min) (kV/µs) 55 Rating Catalog Operating temperature range (°C) -40 to 125 Isolation rating Reinforced Withstand isolation voltage (VISO) (Vrms) 5000 Transient isolation voltage (VIOTM) (VPK) 7070 Working isolation voltage (VIOWM) (Vrms) 750 Creepage (min) (mm) 8.5 Clearance (min) (mm) 8.5
Number of channels 2 Output type Open-drain Propagation delay time (µs) 0.36 CMTI (min) (kV/µs) 55 Rating Catalog Operating temperature range (°C) -40 to 125 Isolation rating Reinforced Withstand isolation voltage (VISO) (Vrms) 5000 Transient isolation voltage (VIOTM) (VPK) 7070 Working isolation voltage (VIOWM) (Vrms) 750 Creepage (min) (mm) 8.5 Clearance (min) (mm) 8.5
SOIC (DWV) 8 67.275 mm² 5.85 x 11.5
  • Wide high-side supply range: 3 V to 27 V
  • Low-side supply range: 2.7 V to 5.5 V
  • Dual window comparator:
    • Window comparator 1: ±20-mV to ±300-mV adjustable threshold
    • Window comparator 2: ±300-mV fixed threshold
  • Supports positive-comparator mode:
    • Cmp0: 600-mV to 2.7-V adjustable threshold
    • Cmp2: 300-mV fixed threshold
    • Cmp1 and Cmp3: Disabled
  • Reference for threshold adjustment: 100 µA, ±2%
  • Trip threshold error: ±1% (max) at 250 mV
  • Open-drain outputs
  • Propagation delay: 280 ns (typ)
  • High CMTI: 15 V/ns (min)
  • Safety-related certifications:
    • 7000-VPK reinforced isolation per DIN EN IEC 60747-17 (VDE 0884-17)
    • 5000-VRMS isolation for 1 minute per UL1577
  • Fully specified over the extended industrial temperature range: –40°C to +125°C
  • Wide high-side supply range: 3 V to 27 V
  • Low-side supply range: 2.7 V to 5.5 V
  • Dual window comparator:
    • Window comparator 1: ±20-mV to ±300-mV adjustable threshold
    • Window comparator 2: ±300-mV fixed threshold
  • Supports positive-comparator mode:
    • Cmp0: 600-mV to 2.7-V adjustable threshold
    • Cmp2: 300-mV fixed threshold
    • Cmp1 and Cmp3: Disabled
  • Reference for threshold adjustment: 100 µA, ±2%
  • Trip threshold error: ±1% (max) at 250 mV
  • Open-drain outputs
  • Propagation delay: 280 ns (typ)
  • High CMTI: 15 V/ns (min)
  • Safety-related certifications:
    • 7000-VPK reinforced isolation per DIN EN IEC 60747-17 (VDE 0884-17)
    • 5000-VRMS isolation for 1 minute per UL1577
  • Fully specified over the extended industrial temperature range: –40°C to +125°C

The AMC23C14 is a dual, isolated window comparator with a short response time. The open-drain outputs are separated from the input circuitry by an isolation barrier that is highly resistant to magnetic interference. This barrier is certified to provide reinforced galvanic isolation of up to 5 kVRMS according to VDE 0884-17 and UL1577, and supports a working voltage of up to 1 kVPK.

Both comparators have windows that are centered around 0 V, meaning that the comparators trip if the input exceeds the thresholds in a positive or negative direction. One comparator has fixed thresholds of ±300 mV. The second comparator has adjustable thresholds from ±20 mV to ±300 mV through a single external resistor.

The AMC23C14 also supports a positive-comparator only mode. When the voltage on the REF pin is greater than 550 mV, the negative comparators are disabled and only the positive comparators are functional. The reference voltage in this mode can be as high as 2.7 V. This mode is particularly useful for monitoring positive voltage supplies.

The AMC23C14 is available in an 8-pin, wide-body SOIC package and is specified over the extended industrial temperature range of –40°C to +125°C.

The AMC23C14 is a dual, isolated window comparator with a short response time. The open-drain outputs are separated from the input circuitry by an isolation barrier that is highly resistant to magnetic interference. This barrier is certified to provide reinforced galvanic isolation of up to 5 kVRMS according to VDE 0884-17 and UL1577, and supports a working voltage of up to 1 kVPK.

Both comparators have windows that are centered around 0 V, meaning that the comparators trip if the input exceeds the thresholds in a positive or negative direction. One comparator has fixed thresholds of ±300 mV. The second comparator has adjustable thresholds from ±20 mV to ±300 mV through a single external resistor.

The AMC23C14 also supports a positive-comparator only mode. When the voltage on the REF pin is greater than 550 mV, the negative comparators are disabled and only the positive comparators are functional. The reference voltage in this mode can be as high as 2.7 V. This mode is particularly useful for monitoring positive voltage supplies.

The AMC23C14 is available in an 8-pin, wide-body SOIC package and is specified over the extended industrial temperature range of –40°C to +125°C.
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Technical documentation

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Type Title Date
* Data sheet AMC23C14 Dual, Fast Response, Reinforced Isolated Window Comparator With Adjustable Threshold datasheet (Rev. A) PDF | HTML 14 Jul 2022
Certificate VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. S) 29 Feb 2024
Application brief Utilizing AMC3311 to Power AMC23C11 for Isolated Sensing and Fault Detection PDF | HTML 09 Nov 2023
Certificate UL Certificate of Compliance Vol4 Sec5 E181974 (Rev. A) 23 Jan 2023
Application note Design Considerations for Current Sensing in DC EV Charging Applications PDF | HTML 13 Dec 2022
Application note DC+ Bus Power-Supply Solution Using Bootstrap Charge Pump Technique PDF | HTML 06 Apr 2022
Technical article Addressing the growing needs of fault detection in high-power systems PDF | HTML 01 Apr 2022
Application note Isolated Undervoltage and Overvoltage Detection Circuit PDF | HTML 29 Mar 2022
Analog Design Journal Using isolated comparators for fault detection in electric motor drives PDF | HTML 14 Mar 2022

Design & development

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Evaluation board

AMC23C14EVM — AMC23C14 evaluation module for dual, fast-response, reinforced, isolated window comparator

The AMC23C14 evaluation module (EVM) is an platform for evaluating the AMC23C14, which is an isolated window comparator with short response time. The comparator outputs are separated from the input circuitry by an isolation barrier that is certified to provide reinforced galvanic isolation of up to (...)

User guide: PDF | HTML
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Simulation model

AMC23C14 PSpice Model (Rev. B)

SBAM486B.ZIP (445 KB) - PSpice Model
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Simulation model

AMC23C14 TINA-TI Reference Design

SBAM479.TSC (23163 KB) - TINA-TI Reference Design
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Reference designs

TIDA-050059 — Overcurrent and overtemperature protection for solid-state relays reference design

This reference design shows how to achieve overcurrent and overtemperature protection for a solid-state relay. The reference design features the TPSI3050-Q1 5-kVRMS reinforced isolated switch driver. TPSI3050-Q1 device integrates a laminate transformer to achieve isolation while transferring signal (...)
Design guide: PDF
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