參數(shù)資料
型號(hào)： MCP3901A0-I/ML
廠商： Microchip Technology
文件頁(yè)數(shù)： 1/30頁(yè)
文件大?。?/td> 0K
描述： IC AFE 24BIT 64KSPS 20-QFN
應(yīng)用說(shuō)明： MCP3901 Designing Application Note
標(biāo)準(zhǔn)包裝： 91
位數(shù)： 24
通道數(shù)： 2
電壓 - 電源，模擬： 4.5 V ~ 5.5 V
電壓 - 電源，數(shù)字： 2.7 V ~ 5.5 V
封裝/外殼： 20-VFQFN 裸露焊盤(pán)
供應(yīng)商設(shè)備封裝： 20-QFN（4x4）
包裝： 管件
2011 Microchip Technology Inc.
DS22192D-page 1
MCP3901
Features
Two Synchronous Sampling 16/24-bit Resolution
Delta-Sigma A/D Converters with Proprietary
Multi-Bit Architecture
91 dB SINAD, -104 dBc Total Harmonic Distortion
(THD) (up to 35th harmonic), 109 dB Spurious-free
Dynamic Range (SFDR) for Each Channel
Programmable Data Rate up to 64 ksps
Ultra Low-Power Shutdown mode with <2 A
-133 dB Crosstalk Between the Two Channels
Low Drift Internal Voltage Reference: 12 ppm/°C
Differential Voltage Reference Input Pins
High Gain PGA on Each Channel (up to 32 V/V)
Phase Delay Compensation Between the Two
Channels with 1 s time Resolution
Separate Modulator Outputs for Each Channel
High-Speed, Addressable 20 MHz SPI Interface
with Mode 0,0 and 1,1 Compatibility
Independent Analog and Digital Power Supplies:
4.5V-5.5V AVDD, 2.7V-5.5V DVDD
Low-Power Consumption: (14 mW typical at 5V)
Available in Small 20-lead SSOP and QFN
Packages
Industrial Temperature Ranges:
- Industrial: -40°C to +85°C
- Extended: -40°C to +125°C
Applications
Energy Metering and Power Measurement
Automotive
Portable Instrumentation
Medical and Power Monitoring
Description
The MCP3901 is a dual channel Analog Front End
(AFE) containing two synchronous sampling Delta-
Sigma Analog-to-Digital Converters (ADC), two PGAs,
phase delay compensation block internal voltage
reference, modulator output block, and high-speed
20 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 byte, as well as six
writable
control
registers
to
program
gain,
oversampling
ratio,
phase,
resolution,
dithering,
shutdown, 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 a
separate data ready pin that can be connected directly
to an Interrupt Request (IRQ) input of an MCU.
The MCP3901 is capable of interfacing to a large
variety of voltage and current sensors, including
shunts, current transformers, Rogowski coils and Hall-
effect sensors.
Package Type
OSC1/CLKI
1
2
3
4
20
19
18
17
16
15
14
13
5
6
7
8
OSC2
SDI
RESET
DVDD
AVDD
CH0+
CH0-
CH1-
12
9
DGND
MDAT0
MDAT1
DR
CH1+
AGND
SDO
11
10
REFIN/OUT+
REFIN-
CS
SCK
20-Lead SSOP
5
2
EP
20
1
19 18 17
3
4
15
14
13
12
678
9
21
10
11
16
CH0+
CH0-
CH1-
CH1+
AGND
REF
IN-
REF
IN/OUT
+
DG
ND
MD
A
T
1
MD
A
T
0
OSC1/CLKI
OSC2
DR
CS
SCK
SDO
SD
I
RES
E
T
DV
DD
AV
DD
20-Lead QFN
* Includes Exposed Thermal Pad (EP); see Table 3-1.
Two-Channel Analog Front End
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MCP3901A0T-E/ML 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Dual Ch Energy Meter Frnt End SPI I-face RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
MCP3901A0T-E/SS 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Dual Ch Energy Meter Fr End SPI Interface RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
MCP3901A0T-I/ML 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Dual CH Energy Meter Front End,SPI IF RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
MCP3901A0T-I/SS 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Dual CH Energy Meter Front End,SPI IF RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
MCP3901A1-I/ML 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Two Channel Analog Front End
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