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參數(shù)資料
| 型號： | AD7738BRU |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | 8-Channel, High Throughput, |
| 中文描述： | 8-CH 24-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO28 |
| 封裝： | MO-153AE, TSSOP-28 |
| 文件頁數(shù)： | 7/28頁 |
| 文件大小： | 407K |
| 代理商： | AD7738BRU |
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REV. 0
AD7738
–7–
PIN FUNCTION DESCRIPTION
Pin No.
Mnemonic
Description
1
SCLK
Serial Clock. Schmitt-Triggered Logic Input. An external serial clock is applied to this input to transfer
serial data to or from the AD7738.
Master Clock Signal for the ADC. This can be provided in the form of a crystal/resonator or external
clock. A crystal/resonator can be tied across the MCLKIN and MCLKOUT pins. Alternatively, the MCLKIN
pin can be driven with a CMOS compatible clock and MCLKOUT left unconnected.
When the master clock for the device is a crystal/resonator, the crystal/resonator is connected between
MCLKIN and MCLKOUT. If an external clock is applied to the MCLKIN, MCLKOUT provides an
inverted clock signal or can be switched off to lower the device power consumption. MCLKOUT is
capable of driving one CMOS load.
Chip Select. Active low Schmitt triggered logic input with an internal pull-up resistor. With this input
hardwired low, the AD7738 can operate in its 3-wire interface mode using SCLK, DIN, and DOUT.
CS
can be used to select the device in systems with more than one device on the serial bus. It can also be used as
an 8-bit frame synchronization signal.
Schmitt-Triggered Logic Input. Active low input that resets the control logic, interface logic, digital filter,
analog modulator, and all on-chip registers of the part to power-on status. Effectively, everything on the
part except the clock oscillator is reset when the
RESET
pin is exercised.
Analog Positive Supply Voltage. 5 V to AGND nominal.
Analog Inputs Common Terminal/Digital Output. The pin is determined by the P0 Dir bit; the digital
value can be written as the P0 bit in the I/O Port register. The digital voltage is referenced to analog
supplies. When configured as an input (P0 Dir bit set to 1), the single-ended Analog Inputs 0 to 7 can be
referenced to this pin’s voltage level.
SYNC
/Digital Input/Digital Output. The pin direction is determined by the P1 Dir bit; the digital value
can be read/written as the P1 bit in the I/O Port register. When the SYNC Enable bit in the I/O Port
register is set to 1, the
SYNC
/P1 pin can be used to synchronize the AD7738 modulator and digital filter
with other devices in the system. The digital voltage is referenced to the analog supplies. When configured
as an input, the pin should be tied high or low.
Analog Inputs
2
MCLKIN
3
MCLKOUT
4
CS
5
RESET
6
7
AV
DD
AINCOM/P0
8
SYNC
/P1
9–12,
17–20
13
AIN0–AIN7
MUXOUT(+) Analog Multiplexer Positive Output
14
MUXOUT(–)
Analog Multiplexer Negative Output
PIN CONFIGURATION
TOP VIEW
(Not to Scale)
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
AD7738
SCLK
DGND
MCLKIN
DV
DD
DIN
MCLKOUT
CS
DOUT
RESET
AV
DD
RDY
AGND
AINCOM/P0
REFIN(–)
SYNC
/P1
AIN7
REFIN(+)
AIN0
AIN6
AIN1
AIN5
AIN2
AIN4
AIN3
MUXOUT(+)
ADCIN(+)
MUXOUT(–)
ADCIN(–)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD7738BRU-REEL | 制造商:Analog Devices 功能描述:ADC Single Delta-Sigma 3.05Msps 24-bit Serial 28-Pin TSSOP T/R 制造商:Analog Devices 功能描述:ADC SGL DELTA-SIGMA 15.437KSPS 24BIT SERL 28TSSOP - Tape and Reel |
| AD7738BRU-REEL7 | 功能描述:IC ADC 24BIT 8CH SIG-DEL 28TSSOP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 位數(shù):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)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(yīng)商設(shè)備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類型:1 個(gè)單端，單極；1 個(gè)單端，雙極 |
| AD7738BRUZ | 功能描述:IC ADC 24BIT 8-CH 28-TSSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:microPOWER™ 位數(shù):8 采樣率（每秒）:1M 數(shù)據(jù)接口:串行，SPI? 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:- 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:24-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:24-VQFN 裸露焊盤（4x4） 包裝:Digi-Reel® 輸入數(shù)目和類型:8 個(gè)單端，單極 產(chǎn)品目錄頁面:892 (CN2011-ZH PDF) 其它名稱:296-25851-6 |
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