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参数资料
| 型号： | DC956A |
| 厂商： | Linear Technology |
| 文件页数： | 3/40页 |
| 文件大小： | 0K |
| 描述： | BOARD DELTA SIGMA ADC LTC2485 |
| 软件下载： | QuikEval System |
| 设计资源： | DC956A Design File DC956A Schematic |
| 标准包装： | 1 |
| 系列： | Easy Drive™, QuikEval™ |
| ADC 的数量： | 1 |
| 位数： | 24 |
| 采样率（每秒）： | 6.8 |
| 数据接口： | I²C，串行 |
| 工作温度： | 0°C ~ 70°C |
| 已用 IC / 零件： | LTC2485 |
| 已供物品： | 板 |
| 相关产品： | LTC2485CDD#TRPBF-ND - IC ADC 24BIT I2C 10-DFN LTC2485IDD#TRPBF-ND - IC ADC 24BIT I2C 10-DFN LTC2485IDD#PBF-ND - IC ADC 24BIT I2C 10-DFN LTC2485CDD#PBF-ND - IC ADC 24BIT I2C 10-DFN |
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LTC2485
11
2485fc
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 1μF tantalum capacitor in parallel with 0.1μF
ceramic capacitor as close to the part as possible.
IN+ (Pin 4), IN– (Pin 5):
Differential Analog Input. The volt-
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. Outside this input range the converter produces
unique overrange and underrange output codes.
SCL (Pin 6): Serial Clock Pin of the I2C Interface. The
LTC2485 can only act as a slave and the SCL pin only
accepts external serial clock. Data is shifted into the
SDA pin on the rising edges of the SCL clock and out-
put through the SDA pin on the falling edges of the
SCL clock.
SDA (Pin 7): Bidirectional Serial Data Line of the I2C Inter-
face. In the transmitter mode (Read), the conversion result
is output through the SDA pin, while in the receiver mode
(Write), the device conguration bits are input through the
SDA pin. At data input mode, the pin is high impedance;
while at data output mode, 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
congured as a three state (LOW, HIGH, or Floating) ad-
dress 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 lter rejection null is located
at a frequency fEOSC/5120 and sets the Chip Address CA0
internally to a HIGH.
FUNCTIONAL BLOCK DIAGRAM
6
7
4
5
9
10
3RD ORDER
ADC
REF+
IN+
1
REF+
IN–
REF–
I2C
SERIAL
INTERFACE
TEMP
SENSOR
MUX
SCL
2
VCC
3
REF–
8
GND
CA0/f0
2485 FB
SDA
CA1
AUTOCALIBRATION
AND CONTROL
INTERNAL
OSCILLATOR
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| DC95F103VN | 制造商:GE Sensing & Inspection Technologies 功能描述:Thermistor;10;PCB Mount Mtg. Type;1.5In Lead;Bare Tinned Copper 制造商:GE Measurement & Control 功能描述:+/-.1oC (0oC - 70oC) Interchangeable Chip |
| DC95F103W | 功能描述:热敏电阻 - NTC 10KOhms +-.2C Epoxy Coated RoHS:否 制造商:EPCOS 电阻:10 kOhms 功率额定值:150 mW 容差:2 % 端接类型:Radial 系列:B57703M 工作温度范围:- 55 C to + 125 C |
| DC95F103WN | 制造商:GE Sensing & Inspection Technologies 功能描述:Thermistor 10 PCB Mount Mtg Type 1.5Lead Bare Tinned Copper 0 +70 制造商:GE Sensing & Inspection Technologies / Thermometrics 功能描述:THERMISTOR NTC +60 10KOHM 制造商:GE Measurement & Control 功能描述:+/-.2oC (0oC - 70oC) Interchangeable Chip 制造商:GE MEASUREMENT & CONTROL/GE SENSING 功能描述:THERMISTOR, NTC, +60C, 10KOHM; Thermistor Type:NTC; Resistance:10kohm; Thermistor Case Style:Radial Leaded; No. of Pins:2; Operating Temperature Min:-40C; Operating Temperature Max:60C; Operating Temperature Range:-40C to +60C ;RoHS Compliant: Yes |
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