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AMC1304M05DW
Texas Instruments
IC ISOLATED MOD 16BIT 78K 16SOIC
52876 Pcs New Original In Stock
Isolated Module 16 b 78k CMOS, Serial 16-SOIC
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AMC1304M05DW
Product Overview
1249693
DiGi Electronics Part Number
AMC1304M05DW-DGManufacturer
Texas Instruments
AMC1304M05DW
Description
IC ISOLATED MOD 16BIT 78K 16SOICInventory
52876 Pcs New Original In Stock
Isolated Module 16 b 78k CMOS, Serial 16-SOIC
Quantity
Minimum 1
Minimum 1
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AMC1304M05DW Technical Specifications
Category
Data Acquisition, ADCs/DACs - Special Purpose
Packaging
-
Series
-
Product Status
Active
Type
Isolated Module
Number of Channels
1
Resolution (Bits)
16 b
Sampling Rate (Per Second)
78k
Data Interface
CMOS, Serial
Voltage Supply Source
Single Supply
Voltage - Supply
3V ~ 5.5V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
16-SOIC (0.295", 7.50mm Width)
Supplier Device Package
16-SOIC
Base Product Number
AMC1304
Datasheet & Documents
HTML Datasheet
AMC1304M05DW-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
3 (168 Hours)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
2156-AMC1304M05DW-296
Standard Package
40
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
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Frequently Asked Questions (FAQ)
What are the key design risks when replacing the AMC1304M05DW with a non-isolated delta-sigma modulator in a high-voltage motor drive application?
Replacing the AMC1304M05DW—a reinforced isolated modulator—with a non-isolated alternative (e.g., Texas Instruments ADS131M04) introduces significant safety and reliability risks in high-voltage environments. The AMC1304M05DW provides 7000 VPK of galvanic isolation, critical for protecting low-voltage control circuitry from high common-mode voltages and transients in motor drives. Without this isolation, ground loops, EMI coupling, and fault propagation can damage sensitive digital logic or create hazardous conditions. Additionally, creepage and clearance requirements must be strictly met on the PCB; skipping isolation may violate IEC 61800-5-1 safety standards. If cost or size is a concern, consider pin-compatible reinforced isolators like the AMC1305M05DW instead of removing isolation entirely.
How does the AMC1304M05DW’s 78 kSPS sampling rate impact anti-aliasing filter design in precision current sensing for industrial inverters?
The AMC1304M05DW’s 78 kSPS output data rate necessitates careful anti-aliasing filter design because its internal modulator operates at a much higher frequency (~20 MHz). While the digital decimation filter handles most out-of-band noise, external analog filtering is still required to prevent high-frequency switching noise (e.g., from IGBTs or SiC MOSFETs) from folding into the signal band. A second-order RC filter with a cutoff near 30–40 kHz is typically sufficient, but component placement and grounding are critical—place the filter close to the AMC1304M05DW’s IN± pins and use a low-inductance ground return. Over-filtering can degrade step response, so balance noise rejection with control-loop stability requirements.
Can the AMC1304M05DW be safely used in a 48 V automotive battery monitoring system where transient voltages exceed 100 V, and what protection circuitry is recommended?
Yes, the AMC1304M05DW is suitable for 48 V automotive systems due to its 7000 VPK isolation rating and -40°C to 125°C operating range, but input overvoltage protection is essential. Transients like load-dump events (ISO 7637-2) can exceed 100 V and damage the modulator’s front end. Implement a series current-limiting resistor (e.g., 1 kΩ) followed by a bidirectional TVS diode rated for ±60 V clamping (e.g., SMAJ58A) between IN+ and IN−. Ensure the TVS capacitance is low (<100 pF) to avoid distorting the small differential signal. Also, verify that the total input voltage stays within the AMC1304M05DW’s ±250 mV full-scale range using a precision shunt resistor network.
What are the reliability implications of operating the AMC1304M05DW near its maximum supply voltage (5.5 V) in a high-temperature industrial environment?
Operating the AMC1304M05DW at 5.5 V near its upper temperature limit (125°C) accelerates aging mechanisms such as electromigration and oxide degradation, potentially reducing long-term reliability. While the device is rated for this condition, derating the supply to 5.0 V or lower improves margin against parametric drift and extends mean time between failures (MTBF). Additionally, ensure adequate thermal management—the 16-SOIC package has limited heat dissipation; avoid placing heat-generating components nearby. Monitor junction temperature using the thermal resistance (θJA ≈ 90°C/W) and consider airflow or copper pour under the package if sustained high loads are expected.
How does the AMC1304M05DW compare to the AMC1306M05DW for high-accuracy shunt-based current measurement in solar inverters, and when should one be chosen over the other?
The AMC1304M05DW (16-bit, 78 kSPS) and AMC1306M05DW (16-bit, 100 kSPS) are both isolated delta-sigma modulators, but the choice depends on bandwidth and latency requirements. The AMC1306M05DW’s faster output rate (100 kSPS) supports tighter MPPT control loops in solar inverters, reducing current ripple and improving efficiency under dynamic irradiance. However, the AMC1304M05DW offers better noise performance at lower speeds due to deeper decimation, making it preferable for steady-state monitoring or applications where ADC resolution matters more than responsiveness. Both share the same pinout and isolation rating, so migration is straightforward—select the AMC1304M05DW for cost-sensitive, low-bandwidth designs and the AMC1306M05DW when faster loop response is critical.
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AMC1304M05DW CAD Models
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