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MCP3208-BI/SL 参数 Datasheet PDF下载

MCP3208-BI/SL图片预览
型号: MCP3208-BI/SL
PDF下载: 下载PDF文件 查看货源
内容描述: 2.7V 4通道/ 8通道12位与SPI⑩串行接口的A / D转换器 [2.7V 4-Channel/8-Channel 12-Bit A/D Converters with SPI⑩ Serial Interface]
分类和应用: 转换器模数转换器光电二极管PC
文件页数/大小: 34 页 / 598 K
品牌: MICROCHIP [ MICROCHIP TECHNOLOGY ]
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MCP3204/3208
2.7V 4-Channel/8-Channel 12-Bit A/D Converters
with SPI
Serial Interface
Features
12-bit resolution
± 1 LSB max DNL
± 1 LSB max INL (MCP3204/3208-B)
± 2 LSB max INL (MCP3204/3208-C)
4 (MCP3204) or 8 (MCP3208) input channels
Analog inputs programmable as single-ended or
pseudo-differential pairs
On-chip sample and hold
SPI serial interface (modes 0,0 and 1,1)
Single supply operation: 2.7V - 5.5V
100 ksps max. sampling rate at V
DD
= 5V
50 ksps max. sampling rate at V
DD
= 2.7V
Low power CMOS technology:
- 500 nA typical standby current, 2 µA max.
- 400 µA max. active current at 5V
Industrial temp range: -40°C to +85°C
Available in PDIP, SOIC and TSSOP packages
Description
The Microchip Technology Inc. MCP3204/3208
devices are successive approximation 12-bit Analog-
to-Digital (A/D) Converters with on-board sample and
hold circuitry. The MCP3204 is programmable to pro-
vide two pseudo-differential input pairs or four single-
ended inputs. The MCP3208 is programmable to pro-
vide four pseudo-differential input pairs or eight single-
ended inputs. Differential Nonlinearity (DNL) is speci-
fied at ±1 LSB, while Integral Nonlinearity (INL) is
offered in ±1 LSB (MCP3204/3208-B) and ±2 LSB
(MCP3204/3208-C) versions.
Communication with the devices is accomplished using
a simple serial interface compatible with the SPI proto-
col. The devices are capable of conversion rates of up
to 100 ksps. The MCP3204/3208 devices operate over
a broad voltage range (2.7V - 5.5V). Low current
design permits operation with typical standby and
active currents of only 500 nA and 320 µA, respec-
tively. The MCP3204 is offered in 14-pin PDIP, 150 mil
SOIC and TSSOP packages. The MCP3208 is offered
in 16-pin PDIP and SOIC packages.
Applications
Sensor Interface
Process Control
Data Acquisition
Battery Operated Systems
Functional Block Diagram
V
DD
V
REF
CH0
CH1
V
SS
Package Types
PDIP, SOIC, TSSOP
CH0
CH1
CH2
CH3
NC
NC
DGND
1
2
3
4
5
6
7
14
13
12
11
10
9
8
V
DD
V
REF
AGND
CLK
D
OUT
D
IN
CS/SHDN
Input
Channel
Mux
DAC
Comparator
CH7*
MCP3204
Sample
and
Hold
Control Logic
12-Bit SAR
Shift
Register
PDIP, SOIC
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
DD
V
REF
AGND
CLK
D
OUT
D
IN
CS/SHDN
DGND
CS/SHDN D
IN
CLK
D
OUT
* Note:
Channels 5-7 available on MCP3208 Only
©
2007 Microchip Technology Inc.
MCP3208
DS21298D-page 1