AMC1304L05 Modulators Datasheet

AMC1304L05 Datasheet PDF, Equivalent


Part Number

AMC1304L05

Description

Reinforced Isolated Delta-Sigma Modulators

Manufacture

etcTI

Total Page 30 Pages
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AMC1304L05
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AMC1304L05, AMC1304L25, AMC1304M05, AMC1304M25
SBAS655E – SEPTEMBER 2014 – REVISED JANUARY 2017
AMC1304x High-Precision,
Reinforced Isolated Delta-Sigma Modulators with LDO
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 ±100 µV (max)
– Offset Drift: 1.3 µV/°C (max)
– Gain Error: ±0.2% or ±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
• On-Chip 18-V LDO Regulator
• 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 Measurements
3 Description
The AMC1304 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 input of the AMC1304 is optimized for direct
connection to shunt resistors or other low voltage-
level signal sources. The unique low input voltage
range of the ±50-mV device allows significant
reduction of the power dissipation through the shunt
while supporting excellent ac and dc performance. By
using an appropriate digital filter (that is, as integrated
on the TMS320F2807x or TMS320F2837x families) to
decimate the bit stream, the device can achieve 16
bits of resolution with a dynamic range of 81 dB (13.2
ENOB) at a data rate of 78 kSPS.
On the high-side, the modulator is supplied by an
integrated low-dropout (LDO) regulator that allows an
unregulated input voltage between 4 V and 18 V
(LDOIN). The isolated digital interface operates from
a 3.3-V or 5-V power supply (DVDD).
The AMC1304 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)
AMC1304x
SOIC (16)
10.30 mm × 7.50 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
To Load
Simplified Schematic
HV+
Floating
Power Supply
4 V to 18 V
AMC1304
LDOIN
DVDD
RSHUNT
VCAP
AGND
AINN
AINP
DGND
DOUT
CLKIN
3.3 V or 5.0 V
TMS320F2837x
SD-Dx
SD-Cx
PWMx
HV- 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.

AMC1304L05
AMC1304L05, AMC1304L25, AMC1304M05, AMC1304M25
SBAS655E – SEPTEMBER 2014 – REVISED JANUARY 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: AMC1304x05 ................... 8
7.10 Electrical Characteristics: AMC1304x25 ............... 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................................................. 21
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 Resources.......................................... 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
Changes from Revision D (August 2016) to Revision E
Page
• Changed V(ESD) for Human-body model (HBM) from ±2000 V to ±2500 V............................................................................. 5
• Changed 1G and 10G to 1M and 10M, respectively, in Quantization Noise Shaping figure ............................................... 22
Changes from Revision C (September 2015) to Revision D
Page
• Changed Features section: deleted Certified Isolation Barrier bullet, added Safety-Related Certifications and
Transient Immunity bullets...................................................................................................................................................... 1
• Changed Simplified Schematic .............................................................................................................................................. 1
• Changed Specifications section to comply with ISO data sheet format ................................................................................ 5
• Changed Maximum virtual junction parameter to Junction temperature in Absolute Maximum Ratings table ..................... 5
• Moved Power Rating, Insulation Specifications, Safety-Related Certifications, and Safety Limiting Values tables,
changed to current standards................................................................................................................................................. 5
• Changed Insulation Specifications table as per ISO standard .............................................................................................. 6
• Added Safety and Insulation Characteristics section .......................................................................................................... 13
• Changed Figure 54 (The AMC1304 in a Frequency Inverter Application) ........................................................................... 26
• Changed Figure 58 (Decoupling the AMC1304) .................................................................................................................. 30
Changes from Revision B (July 2015) to Revision C
Page
• Changed document status to full Production Data: released AMC1304Mx5 to production ................................................... 1
• Changed status of AMC1304Mx5 rows to Production in Device Comparison Table ............................................................ 4
• Changed title of AMC1304x05 Electrical Characteristics table from AMC1304L05 to AMC1304x05 ................................... 8
• Changed typical specification in second row of DC Accuracy, PSRR parameter of AMC1304x05 Electrical
Characteristics table ............................................................................................................................................................... 8
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Copyright © 2014–2017, Texas Instruments Incorporated
Product Folder Links: AMC1304L05 AMC1304L25 AMC1304M05 AMC1304M25


Features Product Folder Order Now Technical Doc uments Tools & Software Support & Com munity Reference Design AMC1304L05, A MC1304L25, AMC1304M05, AMC1304M25 SBAS6 55E – SEPTEMBER 2014 – REVISED JANU ARY 2017 AMC1304x High-Precision, Reinf orced Isolated Delta-Sigma Modulators w ith LDO 1 Features •1 Pin-Compatible Family Optimized for ShuntResistor-Bas ed Current Measurements: – ±50-mV or ±250-mV Input Voltage Ranges – CMOS or LVDS Digital Interface Options • Excellent DC Performance Supporting Hig hPrecision Sensing on System Level: – Offset Error: ±50 µV or ±100 µV (m ax) – Offset Drift: 1.3 µV/°C (max) – Gain Error: ±0.2% or ±0.3% (max) – Gain Drift: ±40 ppm/°C (max) • Safety-Related Certifications: – 700 0-VPK Reinforced Isolation per DIN V VD E V 0884-10 (VDE V 0884-10): 2006-12 5000-VRMS Isolation for 1 Minute per UL1577 – CAN/CSA No. 5A-Component Acc eptance Service Notice, IEC 60950-1, an d IEC 60065 End Equipment Standards • Transient Immunity: 15 kV/µs (min) • High Electromagnetic Field I.
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