AMC1305L25 Modulators Datasheet

AMC1305L25 Datasheet PDF, Equivalent


Part Number

AMC1305L25

Description

Reinforced Isolated Delta-Sigma Modulators

Manufacture

etcTI

Total Page 30 Pages
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AMC1305L25
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AMC1305L25, AMC1305M05, AMC1305M25
SBAS654F – JUNE 2014 – REVISED MARCH 2017
AMC1305x
High-Precision, Reinforced Isolated Delta-Sigma Modulators
1 Features
1 Pin-Compatible Family Optimized for Shunt-
Resistor-Based Current Measurements:
– ±50-mV or ±250-mV Input Voltage Ranges
– CMOS or LVDS Digital Interface Options
• Excellent DC Performance Supporting High-
Precision Sensing on System Level:
– Offset Error: ±50 µV or ±150 µV (max)
– Offset Drift: 1.3 µV/°C (max)
– Gain Error: ±0.3% (max)
– Gain Drift: ±40 ppm/°C (max)
• Safety-Related Certifications:
– 7000-VPK Reinforced Isolation per DIN V VDE
V 0884-10 (VDE V 0884-10): 2006-12
– 5000-VRMS Isolation for 1 Minute per UL1577
– CAN/CSA No. 5A-Component Acceptance
Service Notice, IEC 60950-1, and IEC 60065
End Equipment Standards
• Transient Immunity: 15 kV/µs (min)
• High Electromagnetic Field Immunity
(see Application Note SLLA181A)
• External 5-MHz to 20-MHz Clock Input for
Easier System-Level Synchronization
• Fully Specified Over the Extended Industrial
Temperature Range
2 Applications
• Shunt Resistor Based Current Sensing In:
– Industrial Motor Drives
– Photovoltaic Inverters
– Uninterruptible Power Supplies
• Isolated Voltage Sensing
3 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.
Device Information(1)
PART NUMBER PACKAGE
BODY SIZE (NOM)
AMC1305x
SOIC (16)
10.30 mm × 7.50 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Simplified Schematic
HV+
Floating
Power Supply
Gate Driver
5.0 V
AMC1305
AVDD
DVDD
3.3 V, or 5.0 V
To Load
RSHUNT
Gate Driver
HV-
AGND
AINN
AINP
DGND
DOUT
CLKIN
SD-Dx
SD-Cx
PWMx
TMS320F2837x
Copyright © 2016, Texas Instruments Incorporated
1
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. PRODUCTION DATA.

AMC1305L25
AMC1305L25, AMC1305M05, AMC1305M25
SBAS654F – JUNE 2014 – REVISED MARCH 2017
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Device Comparison Table..................................... 4
6 Pin Configurations and Functions ....................... 4
7 Specifications......................................................... 5
7.1 Absolute Maximum Ratings ...................................... 5
7.2 ESD Ratings.............................................................. 5
7.3 Recommended Operating Conditions....................... 5
7.4 Thermal Information .................................................. 5
7.5 Power Ratings........................................................... 5
7.6 Insulation Specifications............................................ 6
7.7 Safety-Related Certifications..................................... 7
7.8 Safety Limiting Values .............................................. 7
7.9 Electrical Characteristics: AMC1305M05.................. 8
7.10 Electrical Characteristics: AMC1305x25 ............... 10
7.11 Switching Characteristics ...................................... 12
7.12 Insulation Characteristics Curves ......................... 13
7.13 Typical Characteristics .......................................... 14
8 Detailed Description ............................................ 21
8.1 Overview ................................................................. 21
8.2 Functional Block Diagram ....................................... 21
8.3 Feature Description................................................. 22
8.4 Device Functional Modes........................................ 24
9 Application and Implementation ........................ 25
9.1 Application Information............................................ 25
9.2 Typical Applications ................................................ 26
10 Power-Supply Recommendations ..................... 30
11 Layout................................................................... 31
11.1 Layout Guidelines ................................................. 31
11.2 Layout Examples................................................... 31
12 Device and Documentation Support ................. 33
12.1 Documentation Support ........................................ 33
12.2 Related Links ........................................................ 33
12.3 Receiving Notification of Documentation Updates 33
12.4 Community Resource............................................ 33
12.5 Trademarks ........................................................... 33
12.6 Electrostatic Discharge Caution ............................ 33
12.7 Glossary ................................................................ 34
13 Mechanical, Packaging, and Orderable
Information ........................................................... 34
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision E (January 2017) to Revision F
Page
• Changed minimum specification from DGND – 0.3 to DGND – 0.5 and maximum specification from DVDD + 0.3 to
DVDD + 0.5 in Digital input voltage parameter row of Absolute Maximum Ratings table...................................................... 5
Changes from Revision D (August 2016) to Revision E
Page
• Changed V(ESD) for Human-body model (HBM) from ±1000 V to ±2500 V............................................................................. 5
Changes from Revision C (December 2014) to Revision D
Page
• Added last two Features bullets ............................................................................................................................................. 1
• Changed Simplified Schematic figure..................................................................................................................................... 1
• Moved Power Rating, Insulation Specifications, Regulatory Information, and Safety Limiting Values tables ....................... 5
• Changed Insulation Specifications table as per ISO standard .............................................................................................. 6
• Added Insulation Characteristics Curves section ................................................................................................................ 13
• Changed Figure 54 .............................................................................................................................................................. 26
• Changed Figure 58 .............................................................................................................................................................. 30
Changes from Revision B (October 2014) to Revision C
Page
• Changed device status of AMC1305M05 to Production Data ................................................................................................ 1
• Changed document status from Mixed Status to Production Data ........................................................................................ 1
• Updated ESD Ratings table to latest standard ...................................................................................................................... 5
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Copyright © 2014–2017, Texas Instruments Incorporated
Product Folder Links: AMC1305L25 AMC1305M05 AMC1305M25


Features Product Folder Order Now Technical Doc uments Tools & Software Support & Com munity AMC1305L25, AMC1305M05, AMC1305 M25 SBAS654F – JUNE 2014 – REVISED MARCH 2017 AMC1305x High-Precision, Rei nforced Isolated Delta-Sigma Modulators 1 Features •1 Pin-Compatible Family Optimized for ShuntResistor-Based Curr ent Measurements: – ±50-mV or ±250- mV Input Voltage Ranges – CMOS or LVD S Digital Interface Options • Excelle nt DC Performance Supporting HighPrecis ion Sensing on System Level: – Offset Error: ±50 µV or ±150 µV (max) – Offset Drift: 1.3 µV/°C (max) – Ga in Error: ±0.3% (max) – Gain Drift: ±40 ppm/°C (max) • Safety-Related C ertifications: – 7000-VPK Reinforced Isolation per DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12 – 5000-VRMS Isola tion for 1 Minute per UL1577 – CAN/CS A No. 5A-Component Acceptance Service N otice, IEC 60950-1, and IEC 60065 End E quipment Standards • Transient Immuni ty: 15 kV/µs (min) • High Electromagnetic Field Immunity (see Application Note SLLA181A) • External 5-MH.
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