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参数资料
| 型号： | DC1266A-A |
| 厂商： | Linear Technology |
| 文件页数： | 15/18页 |
| 文件大小： | 0K |
| 描述： | BOARD DELTA SIGMA ADC LTC2453 |
| 软件下载： | QuikEval System |
| 设计资源： | DC1266A Design File DC1266A Schematic |
| 标准包装： | 1 |
| 系列： | QuikEval™ |
| ADC 的数量： | 2 |
| 位数： | 16 |
| 采样率（每秒）： | 60 |
| 数据接口： | I²C，串行 |
| 输入范围： | ±VREF |
| 已用 IC / 零件： | LTC2453 |
| 已供物品： | 板 |
| 相关产品： | LTC2453ITS8#TRPBF-ND - IC ADC 16BIT DELTA SIG TSOT23-8 LTC2453ITS8#TRMPBFTR-ND - IC ADC 16BIT DELTA SIG TSOT23-8 LTC2453CTS8#TRPBF-ND - IC ADC 16BIT DELTA SIG TSOT23-8 LTC2453CTS8#TRMPBFTR-ND - IC ADC 16BIT DELTA SIG TSOT23-8 LTC2453IDDB#TRPBF-ND - IC ADC 16BIT DELTA SIG 8-DFN LTC2453IDDB#TRMPBFTR-ND - IC ADC 16BIT DELTA SIG 8-DFN LTC2453CDDB#TRPBF-ND - IC ADC 16BIT DELTA SIG 8-DFN LTC2453CDDB#TRMPBFTR-ND - IC ADC 16BIT DELTA SIG 8-DFN |
LTC2453
6
2453fc
BLOCK DIAGRAM
PIN FUNCTIONS
GND (Pin 1): Ground. Connect to a ground plane through
a low impedance connection.
REF– (Pin 2), REF+ (Pin 3): Differential Reference Input.
The voltage on these pins can have any value between
GND and VCC as long as the reference positive input, REF+,
remains more positive than the negative reference input,
REF–, by at least 2.5V. The differential reference voltage
(VREF = REF+ to REF–) sets the full-scale range.
VCC (Pin 4): Positive Supply Voltage. Bypass to GND
(Pin 1) with a 10F capacitor in parallel with a low-series-
inductance 0.1F capacitor located as close to the part as
possible.
IN– (Pin 5), IN+ (Pin 6): Differential Analog Input.
SCL (Pin 7): Serial Clock Input of the I2C Interface. The
LTC2453 can only act as a slave and the SCL pin only ac-
cepts external serial clock. Data is shifted into the SDA pin
on the rising edges of SCL and output through the SDA
pin on the falling edges of SCL.
SDA (Pin 8): Bidirectional Serial Data Line of the I2C
Interface. The conversion result is output through the
SDA pin. The pin is high impedance unless the LTC2453
is in the data output mode. While the LTC2453 is in the
data output mode, SDA is an open drain pull down (which
requires an external 1.7k pull-up resistor to VCC).
ExposedPad(Pin9,DFNOnly):Ground.Mustbesoldered
to PCB ground.
16-BIT ∑
A/D CONVERTER
DECIMATING
SINC FILTER
SCL
REF+
VCC
REF–
IN+
IN–
GND
SDA
2453 BD
–
16-BIT ∑
A/D CONVERTER
I2C
INTERFACE
INTERNAL
OSCILLATOR
3
4
7
8
1
2
6
5
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