AMC1303E0510 Datasheet, PDF (1/40 Pages) Texas Instruments – Small, High-Precision, Reinforced Isolated Delta-Sigma Modulators with Internal Clock

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AMC1303E0510, AMC1303M0510, AMC1303E0520, AMC1303M0520
AMC1303E2510, AMC1303M2510, AMC1303E2520, AMC1303M2520
SBAS771 – JUNE 2017
AMC1303x Small, High-Precision,
Reinforced Isolated Delta-Sigma Modulators with Internal Clock
1 Features
•1 Pin-Compatible Family Optimized for Shunt-
Resistor-Based Current Measurements:
– ±50-mV or ±250-mV Input Voltage Ranges
– Manchester Coded or Uncoded Bistream
Options
– 10-MHz and 20-MHz Clock Options
• Excellent DC Performance:
– Offset Error: ±100 µV (max)
– Offset Drift: ±1 µV/°C (max)
– Gain Error: ±0.2% (max)
– Gain Drift: ±40 ppm/°C (max)
• Transient Immunity: 100 kV/µs (typ)
• System-Level Diagnostic Features
• Safety-Related Certifications:
– 7000-V_PK Reinforced Isolation per DIN V VDE
V 0884-11 (VDE V 0884-11): 2017-01
– 5000-V_RMS Isolation for 1 Minute per UL1577
– CAN/CSA No. 5A-Component Acceptance
Service Notice, IEC 60950-1, and IEC 60065
End Equipment Standards
• Fully Specified Over the Extended Industrial
Temperature Range: –40°C to +125°C
2 Applications
• Shunt-Resistor-Based Current Sensing and
Isolated Voltage Measurement in:
– Industrial Motor Drives
– Photovoltaic Inverters
– Uninterruptible and Isolated Power Supplies
– Power Factor Correction Circuits
3 Description
The AMC1303 (AMC1303x0510, AMC1303x0520,
AMC1303x2510, and AMC1303x2520) is a family of
precision, delta-sigma (ΔΣ) modulators 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
V_PK according to the DIN V VDE V 0884-11 and
UL1577 standards. Used in conjunction with isolated
power supplies, this isolated modulator separates
parts of the system that operate on different common-
mode voltage levels and protects lower-voltage parts
from damage.
The input of the AMC1303 is optimized for direct
connection to shunt resistors or other low voltage-
level signal sources. The ±50-mV input voltage range
option allows significant reduction of the power
dissipation through the shunt. The output bit-stream
of the AMC1303 is synchronized to the internally
generated clock and is Manchester coded
(AMC1303Ex) or uncoded (AMC1303Mx). By using
an integrated digital filter (such as those in the
TMS320F2807x or TMS320F2837x microcontroller
families) to decimate the bitstream, the device can
achieve 16 bits of resolution with a dynamic range of
85 dB at an effective output data rate of 78 kSPS.
The bitstream output of the Manchester coded
AMC1303Ex versions supports single-wire data and
clock transfer without having to consider the setup
and hold time requirements of the receiving device.
Device Information ⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
AMC1303x
SOIC (8)
5.85 mm × 7.50 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
HV+
Floating
Power Supply
Simplified Schematic
3.3 V or 5.0 V
AVDD
AMC1303Mx
DVDD
3.0 V, 3.3 V, or 5.0 V
RSHUNT
AGND
AINN
AINP
DGND
DOUT
CLKOUT
TMS320F28x7x
SD-Dx
SD-Cx
Note: no CLKOUT connection using AMC1303Ex,
pin 7 to be connected to DGND in this case
HV-
1
Copyright © 2017, Texas Instruments Incorporated
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. UNLESS OTHERWISE NOTED, this document contains PRODUCTION
DATA.