參數(shù)資料
型號(hào)： AD7689BCPZRL7
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 13/32頁(yè)
文件大小： 0K
描述： IC ADC 16BIT 250KSPS 8CH 20LFCSP
產(chǎn)品培訓(xùn)模塊： Power Line Monitoring
Motor Control
產(chǎn)品變化通告： Startup Circuitry Design Improvement Change 15/April/2009
標(biāo)準(zhǔn)包裝： 1
系列： PulSAR®
位數(shù)： 16
采樣率（每秒）： 250k
數(shù)據(jù)接口： DSP，MICROWIRE?，QSPI?，串行，SPI?
轉(zhuǎn)換器數(shù)目： 1
功率耗散（最大）： 21mW
電壓電源： 模擬和數(shù)字
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 20-VFQFN 裸露焊盤，CSP
供應(yīng)商設(shè)備封裝： 20-LFCSP-VQ
包裝： 標(biāo)準(zhǔn)包裝
輸入數(shù)目和類型： 8 個(gè)單端，單極；4 個(gè)差分，雙極；4 個(gè)偽差分，雙極
其它名稱： AD7689BCPZRL7DKR
AD7682/AD7689
Data Sheet
Rev. D | Page 20 of 32
Input Configurations
Figure 30 shows the different methods for configuring the analog
inputs with the configuration register, CFG[12:10]. Refer to the
Configuration Register, CFG, section for more details.
The analog inputs can be configured as
Figure 30A, single-ended referenced to system ground;
CFG[12:10] = 1112.
In this configuration, all inputs (IN[7:0]) have a range of
GND to VREF.
Figure 30B, bipolar differential with a common reference
point; COM = VREF/2; CFG[12:10] = 0102.
Unipolar differential with COM connected to a ground
sense; CFG[12:10] = 1102.
In this configuration, all inputs IN[7:0] have a range of
GND to VREF.
Figure 30C, bipolar differential pairs with the negative
input channel referenced to VREF/2; CFG[12:10] = 00X2.
Unipolar differential pairs with the negative input channel
referenced to a ground sense; CFG[12:10] = 10X2.
In these configurations, the positive input channels have
the range of GND to VREF. The negative input channels are
a sense referred to VREF/2 for bipolar pairs, or GND for
unipolar pairs. The positive channel is configured with
CFG[9:7]. If CFG[9:7] is even, then IN0, IN2, IN4, and IN6
are used. If CFG[9:7] is odd, then IN1, IN3, IN5, and IN7
are used, as indicated by the channels with parentheses in
Figure 30C. For example, for IN0/IN1 pairs with the
positive channel on IN0, CFG[9:7] = 0002. For IN4/IN5
pairs with the positive channel on IN5, CFG[9:7] = 1012.
Note that for the sequencer, detailed in the Channel
Sequencer section, the positive channels are always IN0,
IN2, IN4, and IN6.
Figure 30D, inputs configured in any of the preceding
combinations (showing that the AD7682/AD7689 can be
configured dynamically).
GND
COM
CH0+
CH3+
CH1+
CH2+
CH4+
CH5+
CH6+
CH7+
CH0+
CH3+
CH1+
CH2+
CH4+
CH5+
CH6+
CH7+
COM–
GND
COM
IN1
IN0
IN2
IN3
IN4
IN5
IN6
IN7
IN1
IN0
IN2
IN3
IN4
IN5
IN6
IN7
IN1
IN0
IN2
IN3
IN4
IN5
IN6
IN7
IN1
IN0
IN2
IN3
IN4
IN5
IN6
IN7
A—8 CHANNELS,
SINGLE ENDED
B—8 CHANNELS,
COMMON REFERNCE
GND
COM
CH0+ (–)
CH1+ (–)
CH2+ (–)
CH3+ (–)
CH0– (+)
CH1– (+)
CH0+ (–)
CH1+ (–)
CH0– (+)
CH1– (+)
CH2– (+)
CH3– (+)
C—4 CHANNELS,
DIFFERENTIAL
GND
COM
CH2+
CH3+
CH4+
CH5+
D—COMBINATION
COM–
07
35
3-
03
2
Figure 30. Multiplexed Analog Input Configurations
Sequencer
The AD7682/AD7689 include a channel sequencer useful for
scanning channels in a repeated fashion. Refer to the Channel
Sequencer section for further details of the sequencer operation.
Source Resistance
When the source impedance of the driving circuit is low, the
AD7682/AD7689 can be driven directly. Large source imped-
ances significantly affect the ac performance, especially THD.
The dc performances are less sensitive to the input impedance.
The maximum source impedance depends on the amount of
THD that can be tolerated. The THD degrades as a function of
the source impedance and the maximum input frequency.
相關(guān)PDF資料
PDF描述
AD7690BCPZRL IC ADC 18BIT 400KSPS 10-LFCSP
AD7691BCPZRL7 IC ADC 18BIT SAR 250KSPS 10LFCSP
AD7693BRMZRL7 IC ADC 16BIT 500KSPS 10-MSOP
AD7694ARMZ IC ADC 16BIT SAR 250KSPS 8MSOP
AD7699BCPZRL7 IC ADC 8CH 16BIT 500KSPS 20LFCSP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD768ACHIPS 制造商:AD 制造商全稱:Analog Devices 功能描述:16-Bit, 30 MSPS D/A Converter
AD768AF/QMLR 制造商:Analog Devices 功能描述:
AD768AR 功能描述:IC DAC 16BIT 30MSPS 28-SOIC RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1,000 系列:- 設(shè)置時(shí)間:1µs 位數(shù):8 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:8 電壓電源:雙 ± 功率耗散（最大）:941mW 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 W 包裝:帶卷 (TR) 輸出數(shù)目和類型:8 電壓，單極 采樣率（每秒）:*
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*