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參數資料
| 型號： | AD7706BR |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | 3 V/5 V, 1 mW 2-/3-Channel 16-Bit, Sigma-Delta ADCs |
| 中文描述： | 3-CH 16-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO16 |
| 封裝： | 0.300 INCH, MS-013AA, SOIC-16 |
| 文件頁數： | 6/32頁 |
| 文件大小： | 264K |
| 代理商： | AD7706BR |
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AD7705/AD7706
–6–
REV. A
PIN FUNCTION DESCRIPTIONS
Pin No.
Mnemonic
Function
1
SCLK
Serial Clock. Schmitt-Triggered Logic Input. An external serial clock is applied to this input
to access serial data from the AD7705/AD7706. This serial clock can be a continuous clock
with all data transmitted in a continuous train of pulses. Alternatively, it can be a noncon-
tinuous clock with the information being transmitted to the AD7705/AD7706 in smaller
batches of data.
Master Clock signal for the device. This can be provided in the form of a crystal/resonator or
external clock. A crystal/resonator can be tied across the MCLK IN and MCLK OUT pins.
Alternatively, the MCLK IN pin can be driven with a CMOS-compatible clock and MCLK
OUT left unconnected. The part can be operated with clock frequencies in the range
500 kHz to 5 MHz.
When the master clock for the device is a crystal/resonator, the crystal/resonator is connected
between MCLK IN and MCLKOUT. If an external clock is applied to MCLK IN, MCLK
OUT provides an inverted clock signal. This clock can be used to provide a clock source for
external circuitry and is capable of driving one CMOS load. If the user does not require it,
this MCLK OUT can be turned off via the CLK DIS bit of the Clock Register. This ensures
that the part is not burning unnecessary power driving capacitive loads on MCLK OUT.
Chip Select. Active low Logic Input used to select the AD7705/AD7706. With this input
hard-wired low, the AD7705/AD7706 can operate in its three-wire interface mode with
SCLK, DIN and DOUT used to interface to the device.
CS
can be used to select the device
in systems with more than one device on the serial bus or as a frame synchronization signal in
communicating with the AD7705/AD7706.
Logic Input. Active low input that resets the control logic, interface logic, calibration
coefficients, digital filter and analog modulator of the part to power-on status.
AD7705: Positive input of the differential Analog Input Channel 2. AD7706: Analog Input
Channel 1.
AD7705: Positive input of the differential Analog Input Channel 1. AD7706: Analog Input
Channel 2.
AD7705: Negative input of the differential Analog Input Channel 1. AD7706: COMMON
Input. Analog inputs for Channels 1, 2 and 3 are referenced to this input.
Reference Input. Positive input of the differential Reference Input to the AD7705/AD7706.
The reference input is differential with the provision that REF IN(+) must be greater than
REF IN(–). REFIN(+) can lie anywhere between V
DD
and GND.
2
MCLK IN
3
MCLK OUT
4
CS
5
RESET
6
AIN2(+)[AIN1]
7
AIN1(+)[AIN2]
8
AIN1(–)[COMMON]
9
REF IN(+)
PIN CONFIGURATIONS
TOP VIEW
(Not to Scale)
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
SCLK
MCLK IN
MCLK OUT
CS
RESET
AIN2(+)
AIN1(+)
AIN1(–)
GND
V
DD
DIN
DOUT
DRDY
AIN2(–)
REF IN(–)
REF IN(+)
AD7705
TOP VIEW
(Not to Scale)
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
SCLK
MCLK IN
MCLK OUT
CS
RESET
AIN1
AIN2
COMMON
GND
V
DD
DIN
DOUT
DRDY
AIN3
REF IN(–)
REF IN(+)
AD7706
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相關代理商/技術參數 |
參數描述 |
|---|---|
| AD7706BR-REEL | 制造商:Analog Devices 功能描述:ADC Single Delta-Sigma 500sps 16-bit Serial 16-Pin SOIC W T/R |
| AD7706BR-REEL7 | 功能描述:IC ADC 16BIT 3CH 16-SOIC T/R RoHS:否 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1,000 系列:- 位數:16 采樣率（每秒）:45k 數據接口:串行 轉換器數目:2 功率耗散（最大）:315mW 電壓電源:模擬和數字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數目和類型:2 個單端，單極 |
| AD7706BRU | 功能描述:IC ADC 16BIT 3CH 16-TSSOP RoHS:否 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1,000 系列:- 位數:12 采樣率（每秒）:300k 數據接口:并聯 轉換器數目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數目和類型:1 個單端，單極；1 個單端，雙極 |
| AD7706BRU-REEL | 制造商:Analog Devices 功能描述:ADC Single Delta-Sigma 500sps 16-bit Serial 16-Pin TSSOP T/R 制造商:Analog Devices 功能描述:ADC SGL DELTA-SIGMA 0.5KSPS 16BIT SERL 16TSSOP - Tape and Reel 制造商:Rochester Electronics LLC 功能描述:LOW COST 3CHNL 16-6 SIGMA DELTA ADC I.C. - Tape and Reel |
| AD7706BRU-REEL7 | 功能描述:IC ADC 16BIT 3CH 16-TSSOP T/R RoHS:否 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1,000 系列:- 位數:16 采樣率（每秒）:45k 數據接口:串行 轉換器數目:2 功率耗散（最大）:315mW 電壓電源:模擬和數字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數目和類型:2 個單端，單極 |
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