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MCP3903-I/SS

Description
AFE General Purpose 6 ADC 24bit 3.3V/5V 28-Pin SSOP Tube
CategoryAnalog mixed-signal IC    converter   
File Size914KB,54 Pages
ManufacturerMicrochip
Websitehttps://www.microchip.com
Environmental Compliance
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MCP3903-I/SS Overview

AFE General Purpose 6 ADC 24bit 3.3V/5V 28-Pin SSOP Tube

MCP3903-I/SS Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerMicrochip
Parts packaging codeSSOP
package instructionSSOP, SSOP28,.3
Contacts28
Reach Compliance Codecompliant
ECCN codeEAR99
Factory Lead Time16 weeks
Samacsys DescriptionAFE 6 Channel, 24-Bit, 64ksps, SPI, SSOP MCP3903-I/SS, General Purpose Analogue Front End, 6-channel 24 bit, 64ksps SPI, 28-Pin SSOP
Maximum analog input voltage1 V
Converter typeD/A CONVERTER
JESD-30 codeR-PDSO-G28
JESD-609 codee3
Humidity sensitivity level1
Number of analog input channels6
Number of digits24
Number of terminals28
Maximum operating temperature125 °C
Minimum operating temperature-40 °C
Output bit codeOFFSET BINARY
Package body materialPLASTIC/EPOXY
encapsulated codeSSOP
Encapsulate equivalent codeSSOP28,.3
Package shapeRECTANGULAR
Package formSMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Celsius)260
power supply3/3.3,5 V
Certification statusNot Qualified
surface mountYES
Temperature levelAUTOMOTIVE
Terminal surfaceMatte Tin (Sn) - annealed
Terminal formGULL WING
Terminal pitch0.635 mm
Terminal locationDUAL
Maximum time at peak reflow temperature40
Base Number Matches1
MCP3903
Six Channel Delta Sigma A/D Converter
Features
• Six Synchronous Sampling 16/24-bit Resolution
Delta-Sigma A/D Converters with Proprietary
Multi-Bit Architecture
• 91 dB SINAD, -100 dBc Total Harmonic Distortion
(THD) (up to 35
th
harmonic), 102 dB Spurious-free
Dynamic Range (SFDR) for Each Channel
• Programmable Data Rate up to 64 ksps
• Ultra Low-Power Shutdown Mode with <2
μA
• -115 dB Crosstalk Between any Two Channels
• Low Drift Internal Voltage Reference: 5 ppm/°C
• Differential Voltage Reference Input Pins
• High Gain PGA on Each Channel (up to 32 V/V)
• Phase Delay Compensation Between Each Pair
of Channels with 1
μs
Time Resolution
• High-Speed Addressable 10 MHz SPI Interface
with Mode 0,0 and 1,1 Compatibility
• Independent Analog and Digital Power Supplies
4.5V - 5.5V AV
DD
, 2.7V - 3.6V DV
DD
• Available in Small 28-lead SSOP Package
• Extended Temperature Range: -40°C to +125°C
Description
The MCP3903 is a six-channel Analog Front End (AFE)
containing three pairs made out of two synchronous
sampling Delta-Sigma Analog-to-Digital Converters
(ADC) with PGA, a phase delay compensation block,
internal voltage reference, and high-speed 10 MHz SPI
compatible serial interface. The converters contain a
proprietary dithering algorithm for reduced idle tones
and improved THD.
The internal register map contains 24-bit wide ADC
data words, a modulator output register as well as six
24-bit writable control registers to program gain,
over-sampling ratio, phase, resolution, dithering,
shut-down, reset and several communication features.
The communication is largely simplified with various
Continuous Read modes that can be accessed by the
Direct Memory Access (DMA) of an MCU and with
separate Data Ready pins that can directly be
connected to the Interrupt Request (IRQ) input of an
MCU. The MCP3903 is capable of interfacing to a large
variety of voltage and current sensors including shunts,
current transformers, Rogowski coils, and Hall-effect
sensors.
Applications
• Energy Metering and Power Measurement
• Portable Instrumentation
• Medical and Power Monitoring
Package Type
28-Lead SSOP
AV
DD
CH0+
CH0-
CH1-
CH1+
CH2+
CH2-
CH3-
CH3+
CH4+
CH4-
CH5-
CH5+
1
2
3
4
5
6
7
8
9
10
11
12
13
28
27
26
25
24
23
22
21
20
19
18
17
16
15
DV
DD
RESET
SDI
SDO
SCK
CS
OSC2
OSC1
DRC
DRB
DRA
DGND
AGND
REFIN-
REFIN/OUT+ 14
©
2011 Microchip Technology Inc.
DS25048B-page 1

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