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參數資料
| 型號： | MCP3021A7T-E/OT |
| 廠商： | Microchip Technology |
| 文件頁數： | 1/26頁 |
| 文件大小： | 0K |
| 描述： | ADC 10BIT I2C INTERFACE SOT23-5 |
| 標準包裝： | 1 |
| 位數： | 10 |
| 采樣率（每秒）： | 22.3k |
| 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： | SC-74A，SOT-753 |
| 供應商設備封裝： | SOT-23-5 |
| 包裝： | 標準包裝 |
| 輸入數目和類型： | 1 個單端，單極 |
| 其它名稱： | MCP3021A7T-E/OTDKR |
2003 Microchip Technology Inc.
DS21805A-page 1
M
MCP3021
Features
10-bit resolution
±1 LSB DNL, ±1 LSB INL max.
250 A max conversion current
5 nA typical standby current, 1 A max.
I2C compatible serial interface
- 100 kHz I2C Standard mode
- 400 kHz I2C Fast mode
Up to 8 devices on single 2-wire bus
22.3 ksps in I2C Fast mode
Single-ended analog input channel
On-chip sample and hold
On-chip conversion clock
Single supply specified operation: 2.7V to 5.5V
Temperature range:
- Extended: -40°C to +125°C
Small SOT-23 package
Applications
Data Logging
Multi-zone Monitoring
Hand Held Portable Applications
Battery Powered Test Equipment
Remote or Isolated Data Acquisition
Package Type
Description
The Microchip Technology Inc. MCP3021 is a succes-
sive approximation A/D converter (ADC) with 10-bit
resolution. Available in the SOT-23 package, this
device provides one single-ended input with very low
power consumption. Based on an advanced CMOS
technology, the MCP3021 provides a low maximum
conversion current and standby current of 250 A and
1 A, respectively. Low current consumption, com-
bined with the small SOT-23 package, make this
device ideal for battery-powered and remote data
acquisition applications.
Communication to the MCP3021 is performed using a
2-wire I2C compatible interface. Standard (100 kHz)
and Fast (400 kHz) I2C modes are available with the
device. An on-chip conversion clock enables indepen-
dent timing for the I2C and conversion clocks. The
device is also addressable, allowing up to eight devices
on a single 2-wire bus.
The MCP3021 runs on a single supply voltage that
operates over a broad range of 2.7V to 5.5V. This
device also provides excellent linearity of ±1 LSB differ-
ential non-linearity (DNL) and ±1 LSB integral non-
linearity (INL), maximum.
Functional Block Diagram
5-Pin SOT-23A
SCL
AIN
MCP
3
02
1
1
2
3
5
SDA
VSS
VDD
4
Comparator
10-Bit SAR
DAC
AIN
VSS
VDD
SCL
SDA
Clock
Control Logic
–
+
Sample
and
Hold
I2C
Interface
Low Power 10-Bit A/D Converter With I2C Interface
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