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1-Bit, 20MHz, Second-Order, Isolated Delta-Sigma Modulator

NEW - Custom reel may be available
Inventory: 7,401  

Quality information

RoHS Yes
Lead finish / Ball material SN
MSL rating / Peak reflow Level-3-260C-168 HR
Quality, reliability
& packaging information

Information included:

  • RoHS
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
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Packaging information

Package | Pins Package qty | Carrier: Operating temperature range (°C)
SOIC (DWV) | 8 1,000 | LARGE T&R
Custom reel may be available
-40 to 125
Package | Pins SOIC (DWV) | 8
Package qty | Carrier: 1,000 | LARGE T&R
Custom reel may be available
Operating temperature range (°C) -40 to 125
View TI packaging information

Features for the AMC1204

  • ±250-mV input voltage range optimized for shunt resistors
  • Safety-related certifications:
    • 4250-VPK (AMC1204B) basicisolation per DIN VDE V 0884-11: 2017-01
    • 3005-VRMS (AMC1204B) isolation for 1 minute perUL1577
    • CAN/CSA no. 5A-component acceptance service notice and DIN EN61010-1
    • Working voltage: 1200VPEAK
    • Transient immunity: 15 kV/µs
  • High electromagnetic field immunity
    (see SLLA181A application report)
  • Outstanding AC performance:
    • SNR: 84 dB(minimum)
    • THD: –80 dB (maximum)
  • Excellent DC precision:
    • INL: ±8 LSB(maximum)
    • Gain Error: ±2% (maximum)
  • External clock input for easier synchronization
  • Fully specified over the extended industrial temperature range

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Description for the AMC1204

The AMC1204 and AMC1204B are 1-bit digital output, isolated delta-sigma (ΔΣ) modulatorsthat can be clocked at up to 20 MHz. The digital isolation of the modulator output is provided by asilicon dioxide (SiO2) barrier that is highly resistant to magneticinterference. This barrier has been certified to provide basic galvanic isolation of up to 4000VPEAK (AMC1204) and 4250 VPEAK (AMC1204B) accordingto UL1577, VDE V 0884-11, and CSA standards or specifications.

The AMC1204 and AMC1204B provide a single-chip solution for measuring the small signal ofa shunt resistor across an isolated barrier. These types of resistors are typically used to sensecurrents in motor control inverters, green energy generation systems, and other industrialapplications. The AMC1204 and AMC1204B differential inputs easily connect to the shunt resistor orother 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 isachieved at a data rate of 78 kSPS.

A 5-V analog supply (AVDD) is used by the modulator while the isolated digital interfaceoperates 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.


Qty Price (USD)
1-99 5.586
100-249 4.554
250-999 3.579
1,000+ 3.036

Additional package qty | carrier options

Package qty | Carrier 64 | TUBE
Inventory 576
Qty | Price (USD) 1ku | 3.643 1-99 6.703 100-249 5.465 250-999 4.295 1,000+ 3.643