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AMC1204-Q1

Texas Instruments
Part Number AMC1204-Q1
Manufacturer Texas Instruments
Description Isolated Delta-Sigma Modulator
Published May 10, 2023
Detailed Description AMC1204-Q1 www.ti.com SLAS886B – JULY 2012 – REVISED JANUARY 2013 20 MHz, Second-Order, Isolated Delta-Sigma Modulato...
Datasheet PDF File AMC1204-Q1 PDF File

AMC1204-Q1
AMC1204-Q1


Overview
AMC1204-Q1 www.
ti.
com SLAS886B – JULY 2012 – REVISED JANUARY 2013 20 MHz, Second-Order, Isolated Delta-Sigma Modulator for Current-Shunt Measurement Check for Samples: AMC1204-Q1 FEATURES 1 • Qualified for Automotive Applications • AEC-Q100 Qualified With the Following Results – Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range – Device HBM ESD Classification Level H2 – Device CDM ESD Classification Level C3B • ±250-mV Input Voltage Range Optimized for Shunt Resistors • Certified Digital Isolation: – CSA, IEC60747-5-2, and UL1577 Approved – Isolation Voltage: 4250 VPEAK – Working Voltage: 1200 VPEAK – Transient Immunity: 15 kV/µs • Long Isolation Barrier Lifetime (see Application Report SLLA197) • High Electromagnetic Field Immunity (see Application Note SLLA181A) • Outstanding AC Performance: – SNR: 84 dB (min) – THD: –80 dB (max) • Excellent DC Precision: – INL: ±8 LSB (max) – Gain Error: ±2.
5% (max) • External Clock Input for Easier Synchronization • Fully Specified Over the Extended Automotive Temperature Range DESCRIPTION The AMC1204-Q1 is a 1-bit digital output, isolated delta-sigma (ΔΣ) modulators that can be clocked at up to 20 MHz.
The digital isolation of the modulator output is provided by a silicon dioxide (SiO2) barrier that is highly resistant to magnetic interference.
This barrier has been certified to provide basic galvanic isolation of up to 4250 VPEAK according to UL1577, IEC60747-5-2, and CSA standards or specifications.
The AMC1204-Q1 provides a single-chip solution for measuring the small signal of a shunt resistor across an isolated barrier.
These types of resistors are typically used to sense currents in motor control inverters, green energy generation systems, and other industrial applications.
The AMC1204-Q1 differential inputs easily connect to the shunt resistor or other low-level signal sources.
An internal reference eliminates the need for external components.
When used with an appropriate external digit...


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