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參數(shù)資料
| 型號： | MCP3551E |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | SENSOR COMP LOAD CELL 2LBF |
| 中文描述： | 低功耗，單通道22位Δ-Σ模數(shù)轉(zhuǎn)換器 |
| 文件頁數(shù)： | 1/30頁 |
| 文件大小： | 616K |
| 代理商： | MCP3551E |
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2005 Microchip Technology Inc.
DS21950B-page 1
MCP3551/3
Features
22-bit ADC in Small 8-pin MSOP Package with
Automatic Internal Offset and Gain Calibration
Low-Output Noise of 2.5 μV
RMS
with Effective
Resolution of 21.9 bits (MCP3551)
3 μV Typical Offset Error
2 ppm Typical Full-Scale Error
6 ppm Maximum INL Error
Total Unadjusted Error Less Than 10 ppm
No Digital Filter Settling Time, Single-Command
Conversions through 3-wire SPI
Interface
Ultra-Low Conversion Current (MCP3551):
- 100 μA typical (V
DD
= 2.7V)
- 120 μA typical (V
DD
= 5.0V)
Differential Input with V
SS
to V
DD
Common Mode
Range
2.7V to 5.5V Single-Supply Operation
Extended Temperature Range:
- -40°C to +125°C
Applications
Weigh Scales
Direct Temperature Measurement
6-digit DVMs
Instrumentation
Data Acquisition
Strain Gauge Measurement
Block Diagram
Description
The Microchip Technology Inc. MCP3551/3 devices
are 2.7V to 5.5V low-power, 22-bit Delta-Sigma
Analog-to-Digital Converters
(
ADCs). The devices offer
output noise as low as 2.5 μV
RMS
, with a total
unadjusted error of 10 ppm. The family exhibits 6 ppm
Integral Non-Linearity (INL) error, 3 μV offset error and
less than 2 ppm full-scale error. The MCP3551/3
devices provide high accuracy and low noise
performance
for
applications
measurements (such as pressure, temperature and
humidity) are performed. With the internal oscillator
and high oversampling rate, minimal external
components
are
required
applications.
This product line has fully differential analog inputs,
making it compatible with a wide variety of sensor,
industrial control or process control applications.
The MCP3551/3 devices operate from -40°C to +125°C
and are available in the space-saving 8-pin MSOP and
SOIC packages.
where
sensor
for
high-accuracy
Package Types:
Device Selection Table
V
SS
V
IN
+
V
IN
-
SCK
SDO
RDY
V
DD
CS
S
4
Internal
Oscillator
S
V
REF
POR
3rd-Order
ΔΣ
ADC
Modulator
w/ Internal
Calibration
V
DD
Part
Number
Sample
Rate
Effective
Resolution
50/60 Hz
Rejection
MCP3551
13.75 sps
21.9 bits
50/60 Hz
(simultaneous)
N/A
MCP3553
60 sps
20.6 bits
V
IN
–
V
SS
V
IN
+
MCP3551/3
SOIC, MSOP
CS
SDO/RDY
1
2
3
4
8
7
6
5 SCK
V
DD
V
REF
Low-Power, Single-Channel 22-Bit Delta-Sigma ADCs
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MCP3551-E/MS | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 22-bit ADC 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MCP3551-E/SN | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 22-bit ADC 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MCP3551-ESN | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Low-Power, Single-Channel 22-Bit Delta-Sigma ADCs |
| MCP3551T | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Low-Power, Single-Channel 22-Bit Delta-Sigma ADCs |
| MCP3551T-50I/MS | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 13-bit Diff In 4 Chl 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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