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| 型號： | MCP3421DM-BFG |
| 廠商： | Microchip Technology |
| 文件頁數(shù)： | 1/42頁 |
| 文件大小： | 0K |
| 描述： | BOARD DEMO FOR MCP3421 |
| 產(chǎn)品培訓(xùn)模塊： | MCP3901 Analog Front End |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 主要目的： | 電源管理，電池檢測計(jì) |
| 已用 IC / 零件： | MCP3421 |
| 已供物品： | 板 |
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2009 Microchip Technology Inc.
DS22003E-page 1
MCP3421
Features
18-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%
- Drift: 15 ppm/°C
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:
- 3.75 SPS (18 bits)
- 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)
- 39 A typical
(VDD= 3V, One-Shot Conversion with 1 SPS)
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 MCP3421 is a single channel low-noise, high
accuracy
ΔΣ A/D converter with differential inputs and
up to 18 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 MCP3421 device performs conversion at rates of
3.75, 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 MCP3421 device to convert a
smaller input signal with high resolution. The device
has two conversion modes: (a) Continuous mode and
(b) One-Shot mode. In One-Shot mode, the device
enters a low current standby mode automatically after
one conversion. This reduces current consumption
greatly during idle periods.
The MCP3421 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
MCP3421
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
18-Bit Analog-to-Digital Converter
with I2C Interface and On-Board Reference
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MCP3421DM-BFG | 制造商:Microchip Technology Inc 功能描述:A/D CONVERTER EVAL. BOARD; Silicon Manufacturer:Microchip; Silicon Core Number:MCP3421; Kit Application Type:Power Management; Kit Contents:Board, Battery; Features:Measure the Battery Voltage and Display the Result on LCD ;RoHS Compliant: No |
| MCP3421DM-WS | 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 WT SCALE DEMO BRD 18 I/O 10-BIT ADC RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V |
| MCP3421E64A0-E/SN | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 18-B delta-sigma ADC Sngl Ch 64kb EEPROM 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 |
| MCP3421EV | 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 MCP3421 SOT23-6 Eval Board RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V |
| MCP3422 | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:18-Bit, Multi-Channel ???￡ Analog-to-Digital Converter with I2Ca?￠ Interface and On-Board Reference |
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