参数资料
型号: LTC2483CDD#TRPBF
厂商: Linear Technology
文件页数: 34/34页
文件大小: 0K
描述: IC ADC 16BIT I2C 10-DFN
标准包装: 2,500
位数: 16
采样率(每秒): 6.8
数据接口: I²C,串行
转换器数目: 1
功率耗散(最大): 480µW
电压电源: 单电源
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 10-WFDFN 裸露焊盘
供应商设备封装: 10-DFN(3x3)
包装: 带卷 (TR)
输入数目和类型: 1 个差分,双极
配用: DC955A-ND - BOARD DELTA SIGMA ADC LTC2483
LTC2483
2483fc
pin FuncTions
REF+ (Pin 1), 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+, is more positive than the reference negative input,
REF, by at least 0.1V.
VCC (Pin 2): Positive Supply Voltage. Bypass to GND
(Pin 8) with a 1F tantalum capacitor in parallel with 0.1F
ceramic capacitor as close to the part as possible.
IN+(Pin4),IN(Pin5):DifferentialAnalogInput.Thevolt-
age on these pins can have any value between GND – 0.3V
and VCC + 0.3V. Within these limits the converter bipolar
input range (VIN = IN+ – IN) extends from –0.5 VREF to
0.5 VREF.Outsidethisinputrangetheconverterproduces
unique overrange and underrange output codes.
SCL (Pin 6): Serial Clock Pin of the I2C Interface. The
LTC2483 can only act as a slave and the SCL pin only
accepts external serial clock. Data is shifted out the SDA
pin on the falling edges of the SCL clock.
SDA (Pin 7): Serial Data Output Line of the I2C Interface.
In the transmitter mode (read), the conversion result is
output through the SDA pin. It is an open-drain N-channel
driver and therefore an external pull-up resistor or current
source to VCC is needed.
GND (Pin 8): Ground. Connect this pin to a ground plane
through a low impedance connection.
CA1 (Pin 9): Chip Address Control Pin. The CA1 pin
is configured as a three state (LOW, HIGH, or floating)
address control bit for the device I2C address.
CA0/F0 (Pin 10): Chip Address Control Pin/External Clock
Input Pin. When no transition is detected on the CA0/F0
pin, it is a two state (HIGH or floating) address control
bit for the device I2C address. When the pin is driven by
an external clock signal with a frequency fEOSC of at least
10kHz, the converter uses this signal as its system clock
and the fundamental digital filter rejection null is located
at a frequency fEOSC/5120 and sets the chip address CA0
internally to a HIGH.
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