AMC1204-Q1 Series

Automotive, ±250-mV input, precision current sensing basic isolated modulator

Catalog

Automotive, ±250-mV input, precision current sensing basic isolated modulator

Part	Voltage - Supply	Supplier Device Package	Number of Channels	Data Interface	Sampling Rate (Per Second)	Type	Operating Temperature [Min]	Operating Temperature [Max]	Package / Case [x]	Package / Case	Package / Case [y]	Voltage Supply Source	Mounting Type	Resolution (Bits)	Qualification	Grade	Power (Typ) @ Conditions	Number of Bits	Utilized IC / Part	Input Range	Number of A/D Converters	Supplied Contents	Voltage - Supply [Min]	Voltage - Supply [Max]	Package / Case [custom]	Package / Case [custom]
Texas Instruments AMC1204QDWRQ1	3.3 V 5 V	16-SOIC	1	SPI	78k	Modulator	-40 °C	105 ░C	0.295 in	16-SOIC	7.5 mm	Analog and Digital	Surface Mount	16 b	AEC-Q100	Automotive
Texas Instruments AMC1204EVM				Serial	78k												88 mW	16	AMC1204	250 mV	1	Board(s)
Texas Instruments AMC1204BDWV		8-SOIC	1	Serial		Modulator	-40 °C	125 °C		8-SOIC		Analog and Digital	Surface Mount	16 b									2.7 V	5.5 V	0.295 in	7.5 mm
Texas Instruments AMC1204BDW	3.3 V 5 V	16-SOIC	1	Serial		Modulator	-40 °C	105 ░C	0.295 in	16-SOIC	7.5 mm	Analog and Digital	Surface Mount	16 b
Texas Instruments AMC1204BDWVR		8-SOIC	1	Serial		Modulator	-40 °C	105 ░C		8-SOIC		Analog and Digital	Surface Mount	16 b									2.7 V	5.5 V	0.295 in	7.5 mm

Catalog

Automotive, ±250-mV input, precision current sensing basic isolated modulator

Key Features

• Qualified for Automotive ApplicationsAEC-Q100 Qualified With the Following ResultsDevice Temperature Grade 1: –40°C to 125°CAmbient Operating Temperature RangeDevice HBM ESD Classification Level H2Device CDM ESD Classification Level C3B±250-mV Input Voltage Range Optimized for Shunt ResistorsCertified Digital Isolation:CSA, IEC60747-5-2, and UL1577 ApprovedIsolation Voltage: 4250 VPEAKWorking Voltage: 1200 VPEAKTransient Immunity: 15 kV/µsLong 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 SynchronizationFully Specified Over the Extended Automotive Temperature RangeQualified for Automotive ApplicationsAEC-Q100 Qualified With the Following ResultsDevice Temperature Grade 1: –40°C to 125°CAmbient Operating Temperature RangeDevice HBM ESD Classification Level H2Device CDM ESD Classification Level C3B±250-mV Input Voltage Range Optimized for Shunt ResistorsCertified Digital Isolation:CSA, IEC60747-5-2, and UL1577 ApprovedIsolation Voltage: 4250 VPEAKWorking Voltage: 1200 VPEAKTransient Immunity: 15 kV/µsLong 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 SynchronizationFully Specified Over the Extended Automotive Temperature Range

Description

The AMC1204 and AMC1204B are 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 4000 VPEAK(AMC1204) and 4250 VPEAK(AMC1204B) according to UL1577, VDE V 0884-11, and CSA standards or specifications. The AMC1204 and AMC1204B provide 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 and AMC1204B 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 digital filter, an effective number of bits (ENOB) of 14 is achieved at a data rate of 78 kSPS. A 5-V analog supply (AVDD) is used by the modulator while the isolated digital interface operates from a 3-V, 3.3-V, or 5-V supply (DVDD). The AMC1204 and AMC1204B are available in SOIC-16 (DW) and SOIC-8 (DWV) packages and are specified from –40°C to 105°C. The AMC1204 and AMC1204B are 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 4000 VPEAK(AMC1204) and 4250 VPEAK(AMC1204B) according to UL1577, VDE V 0884-11, and CSA standards or specifications. The AMC1204 and AMC1204B provide 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 and AMC1204B 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 digital filter, an effective number of bits (ENOB) of 14 is achieved at a data rate of 78 kSPS. A 5-V analog supply (AVDD) is used by the modulator while the isolated digital interface operates from a 3-V, 3.3-V, or 5-V supply (DVDD). The AMC1204 and AMC1204B are available in SOIC-16 (DW) and SOIC-8 (DWV) packages and are specified from –40°C to 105°C.