AMC1305L25DW Part Information

Details for AMC1305L25DW by Texas Instruments

Semiconductors - ICs > Drivers & Interfaces > Isolators

Part Description

The AMC1305 device 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 7000 VPEAK according to the DIN V VDE V 0884-10, UL1577, and CSA standards. Used in conjunction with isolated power supplies, the device prevents noise currents on a high common-mode voltage line from entering the local system ground and interfering with or damaging low voltage circuitry. The AMC1305 is optimized for direct connection to shunt resistors or other low voltage level signal sources and supports excellent dc and ac performance. Shunt resistors are typically used to sense currents in motor drives, green energy generation systems, or other industrial applications. By using an appropriate digital filter (that is, as integrated on the TMS320F2837x) to decimate the bit stream, the device can achieve 16 bits of resolution with a dynamic range of 85 dB (13.8 ENOB) at a data rate of 78 kSPS. On the high-side, the modulator is supplied with a nominal voltage of 5 V (AVDD), whereas the isolated digital interface operates from a 3.3-V or 5-V power supply (DVDD). The AMC1305 is available in a wide-body SOIC-16 (DW) package and is specified from –40°C to +125°C.

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Part Features

  • Excellent DC Performance Supporting High- Precision Sensing on System Level: u2013 Offset Error: u00b150 u00b5V or u00b1150 u00b5V (max) u2013 Offset Drift: 1.3 u00b5V/u00b0C (max) u2013 Gain Error: u00b10.3% (max) u2013 Gain Drift: u00b140 ppm/u00b0C (max)
  • External 5-MHz to 20-MHz Clock Input for Easier System-Level Synchronization
  • Fully Specified Over the Extended Industrial
  • High Electromagnetic Field Immunity (see Application Note SLLA181A)
  • Pin-Compatible Family Optimized for Shunt- Resistor-Based Current Measurements: u2013 u00b150-mV or u00b1250-mV Input Voltage Ranges u2013 CMOS or LVDS Digital Interface Options
  • Safety-Related Certifications: u2013 7000-VPK Reinforced Isolation per DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12 u2013 5000-VRMS Isolation for 1 Minute per UL1577 u2013 CAN/CSA No. 5A-Component Acceptance Service Notice, IEC 60950-1, and IEC 60065 End Equipment Standards
  • Transient Immunity: 15 kV/u00b5s (min)

Part Specifications

Resolution (Bits) 16bit
Sampling Rate 5MSPS
Input Channel Type Differential
Data Interface -
Supply Voltage Type Single
Supply Voltage Min 4.5V
Supply Voltage Max 5.5V
ADC / DAC Case Style SOIC
No. of Pins 16Pins
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range Single 16-Bit Sigma-Delta ADCs
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 3 - 168 hours
SVHC No SVHC (27-Jun-2018)
RoHS Compliant

Alternative Part Descriptions

  • ISOLATED SIGMA DELTA MODULATOR, SOIC-16; Resolution (Bits):16bit; Sampling Rate:5MSPS; Input Channel Type:Differential; Data Interface:-; Supply Voltage Type:Single; Supply Voltage Min:4.5V; Supply Voltage Max:5.5V; ADC / DAC Case RoHS Compliant: Yes | Newark Electronics
  • Reinforced Isolated Modulator With ±250mV Input and LVDS Interface | Texas Instruments

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