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參數資料
| 型號： | MCP3425A0T-E/CH |
| 廠商： | Microchip Technology |
| 文件頁數： | 1/38頁 |
| 文件大小： | 0K |
| 描述： | IC ADC 16BIT I2C PROGBL SOT23-6 |
| 產品培訓模塊： | MCP3901 Analog Front End |
| 標準包裝： | 1 |
| 位數： | 16 |
| 數據接口： | I²C，串行 |
| 轉換器數目： | 1 |
| 電壓電源： | 單電源 |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | SOT-23-6 |
| 供應商設備封裝： | SOT-23-6 |
| 包裝： | 標準包裝 |
| 輸入數目和類型： | 2 個單端，雙極；1 個差分，雙極 |
| 產品目錄頁面： | 672 (CN2011-ZH PDF) |
| 配用： | MCP3425EV-ND - EVALUATION BOARD FOR MCP3425 |
| 其它名稱： | MCP3425A0T-E/CHDKR |
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2009 Microchip Technology Inc.
DS22072B-page 1
MCP3425
Features
16-bit
ΔΣ ADC in a SOT-23-6 package
Differential Input Operation
Self Calibration of Internal Offset and Gain per
each conversion
On-Board Voltage Reference:
- Accuracy: 2.048V ± 0.05%
On-Board Programmable Gain Amplifier (PGA):
- Gains of 1, 2, 4 or 8
On-Board Oscillator
INL: 10 ppm of FSR (FSR = 4.096V/PGA)
Programmable Data Rate Options:
- 15 SPS (16 bits)
- 60 SPS (14 bits)
- 240 SPS (12 bits)
One-Shot or Continuous Conversion Options
Low Current Consumption:
- 145 A typical
(VDD= 3V, Continuous Conversion)
One-Shot Conversion (1 SPS) with VDD = 3V:
- 9.7 A typical with 16 bit mode
- 2.4 A typical with 14 bit mode
- 0.6 A typical with 12 bit mode
Supports I2C Serial Interface:
- Standard, Fast and High-Speed Modes
Single Supply Operation: 2.7V to 5.5V
Extended Temperature Range: -40°C to 125°C
Typical Applications
Portable Instrumentation
Weigh Scales and Fuel Gauges
Temperature Sensing with RTD, Thermistor, and
Thermocouple
Bridge Sensing for Pressure, Strain, and Force.
Package Types
Description
The MCP3425 is a single channel low-noise, high
accuracy
ΔΣ A/D converter with differential inputs and
up to 16 bits of resolution in a small SOT-23-6 package.
The on-board precision 2.048V reference voltage
enables an input range of ±2.048V differentially
(
Δ voltage = 4.096V). The device uses a two-wire I2C
compatible serial interface and operates from a single
2.7V to 5.5V power supply.
The MCP3425 device performs conversion at rates of
15, 60, or 240 samples per second (SPS) depending
on the user controllable configuration bit settings using
the two-wire I2C serial interface. This device has an
on-board programmable gain amplifier (PGA). The
user can select the PGA gain of x1, x2, x4, or x8 before
the analog-to-digital conversion takes place. This
allows the MCP3425 device to convert a smaller input
signal with high resolution. The device has two conver-
sion modes: (a) Continuous mode and (b) One-Shot
mode. In One-Shot mode, the device enters a low
current standby mode automatically after one conver-
sion. This reduces current consumption greatly during
idle periods.
The MCP3425 device can be used for various high
accuracy analog-to-digital data conversion applications
where design simplicity, low power, and small footprint
are major considerations.
Block Diagram
1
2
3
4
5
6
VIN+
VSS
SCL
VIN-
VDD
SDA
MCP3425
SOT-23-6
VSS
VDD
VIN+
VIN-
SCL
SDA
Voltage Reference
Clock
(2.048V)
I2C Interface
Gain = 1, 2, 4, or 8
VREF
ΔΣ ADC
Converter
PGA
Oscillator
16-Bit Analog-to-Digital Converter
with I2C Interface and On-Board Reference
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MCP3425A1T-E/CH | 功能描述:模數轉換器 - ADC 18bit deltasigma ADC single channel, 4sps RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 |
| MCP3425A1TECH | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:16-Bit Analog-to-Digital Converter with I2C Interface and On-Board Reference |
| MCP3425A2T-E/CH | 功能描述:模數轉換器 - ADC 18bit deltasigma ADC single channel, 4sps RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 |
| MCP3425A2TECH | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:16-Bit Analog-to-Digital Converter with I2C Interface and On-Board Reference |
| MCP3425A3T-E/CH | 功能描述:模數轉換器 - ADC 18bit deltasigma ADC single channel, 4sps RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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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