參數(shù)資料
型號(hào): AD7416ARMZ-REEL7
廠商: Analog Devices, Inc.
元件分類: 溫度/濕度傳感器
英文描述: 10-Bit Digital Temperature Sensor (AD7416) and Single/Four-Channel ADC (AD7417/AD7418)
中文描述: 10位數(shù)字溫度傳感器(I2C接口芯片AD7416)和單/四通道ADC(AD7417/AD7418)
文件頁(yè)數(shù): 4/20頁(yè)
文件大小: 325K
代理商: AD7416ARMZ-REEL7
REV. G
–4–
AD7416/AD7417/AD7418
AD7417 PIN FUNCTION DESCRIPTION
Pin No.
Mnemonic
Description
1, 16
2
3
4
NC
SDA
SCL
OTI
No Connection. Do not connect anything to this pin.
Digital I/O. Serial bus bidirectional data. Push-pull output.
Digital Input. Serial bus clock.
This is a logic output. The overtemperature indicator (OTI) is set if the result of a conversion on
Channel 0 (temperature sensor) is greater than an 8-bit word in the overtemperature register (OTR).
The signal is reset at the end of a serial read operation. Open-drain output.
Reference Input. An external 2.5 V reference can be connected to the AD7417 at this pin. To enable the
on-chip reference, the REFIN pin should be tied to GND. If an external reference is connected to the
AD7417, the internal reference will shut down.
Ground reference for track-and-hold, comparator and capacitor DAC, and digital circuitry.
Analog Input Channels. The AD7417 has four analog input channels. The input channels are single-ended
with respect to GND. The input channels can convert voltage signals in the range 0 V to V
REF
. A chan-
nel is selected by writing to the configuration register of the AD7417. (See Control Byte section.)
Digital Input. The highest programmable bit of the serial bus address.
Digital Input. The middle programmable bit of the serial bus address.
Digital Input. The lowest programmable bit of the serial bus address.
Positive Supply Voltage, 2.7 V to 5.5 V.
Logic Input Signal. Convert start signal. The rising edge of this signal fully powers up the part. The
power-up time for the part is 4
μ
s. If the
CONVST
pulse is greater than 4
μ
s, the falling edge of
CONVST
places the track-and-hold mode into hold mode and initiates a conversion. If the pulse is less than 4
μ
s,
an internal timer ensures that the track-and-hold does not go into hold and conversion is not initiated
until the power-up time has elapsed. The track-and-hold goes into track mode again at the end of con-
version. (See Operating Mode section.)
5
REF
IN
6
7
10
GND
A
IN1
to A
IN4
11
12
13
14
15
A2
A1
A0
V
DD
CONVST
AD7417 PIN CONFIGURATION
SOIC/TSSOP
TOP VIEW
(Not to Scale)
NC = NO CONNECT
NC
SDA
SCL
OTI
REF
IN
GND
A
IN1
A
IN2
NC
CONVST
V
DD
A0
A1
A2
A
IN4
A
IN3
AD7417
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
相關(guān)PDF資料
PDF描述
AD7417 Four Channel ADC(四通道A/D轉(zhuǎn)換器)
AD7418 Single Channel ADC(單通道A/D轉(zhuǎn)換器)
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AD74322DARU Switch Mode Power Supply; Output Power:10W; No. of Outputs:2; Output 1 VDC +:15VDC; Output Current 1:0.36A; Output 2 VDC -:15VDC; Power Supply Mounting:PC Board; Leaded Process Compatible:No; Output Current:0.36A RoHS Compliant: Yes
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