參數(shù)資料
型號： AD7746ARUZ
廠商： Analog Devices Inc
文件頁數(shù)： 23/28頁
文件大小： 0K
描述： IC CONV 2CH CAP TO DGTL 16-TSSOP
設(shè)計資源： Extending the Capacitive Input Range of AD7745/AD7746 (CN0129)
標準包裝： 96
類型： 電容數(shù)字轉(zhuǎn)換器
分辨率（位）： 24 b
數(shù)據(jù)接口： 串行
電壓電源： 單電源
電源電壓： 2.7 V ~ 5.25 V
工作溫度： -40°C ~ 125°C
安裝類型： 表面貼裝
封裝/外殼： 16-TSSOP（0.173"，4.40mm 寬）
供應(yīng)商設(shè)備封裝： 16-TSSOP
包裝： 管件
產(chǎn)品目錄頁面： 781 (CN2011-ZH PDF)
配用： EVAL-AD7746EBZ-ND - BOARD EVALUATION FOR AD7746
AD7745/AD7746
Rev. 0 | Page 4 of 28
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
Full-Scale Drift vs. Temperature
5
ppm of FS/°C
Internal reference
0.5
ppm of FS/°C
External reference
Average VIN Input Current
300
nA/V
Analog VIN Input Current Drift
±50
pA/V/°C
Power Supply Rejection
80
dB
Internal reference, VIN = VREF/2
Power Supply Rejection
90
dB
External reference, VIN = VREF/2
Normal Mode Rejection
75
dB
50 Hz ± 1%, conversion time = 122.1 ms
50
dB
60 Hz ± 1%, conversion time = 122.1 ms
Common-Mode Rejection
95
dB
VIN = 1 V
INTERNAL VOLTAGE REFERENCE
Voltage
1.169
1.17
1.171
V
TA = 25°C
Drift vs. Temperature
5
ppm/°C
EXTERNAL VOLTAGE REFERENCE INPUT
Differential REFIN Voltage2
0.1
2.5
VDD
V
Absolute REFIN Voltage2
GND 0.03
VDD + 0.03
V
Average REFIN Input Current
400
nA/V
Average REFIN Input Current Drift
±50
pA/V/°C
Common-Mode Rejection
80
dB
SERIAL INTERFACE LOGIC INPUTS
(SCL, SDA)
VIH Input High Voltage
2.1
V
VIL Input Low Voltage
0.8
V
Hysteresis
150
mV
Input Leakage Current (SCL)
±0.1
±1
A
OPEN-DRAIN OUTPUT (SDA)
VOL Output Low Voltage
0.4
V
ISINK =
6.0 mA
IOH Output High Leakage Current
0.1
1
A
VOUT = VDD
LOGIC OUTPUT (RDY)
VOL Output Low Voltage
0.4
V
ISINK = 1.6 mA, VDD = 5 V
VOH Output High Voltage
4.0
V
ISOURCE = 200 A, VDD = 5 V
VOL Output Low Voltage
0.4
V
ISINK = 100 A, VDD = 3 V
VOH Output High Voltage
VDD – 0.6
V
ISOURCE = 100 A, VDD = 3 V
POWER REQUIREMENTS
VDD-to-GND Voltage
4.75
5.25
V
VDD = 5 V, nominal
2.7
3.6
V
VDD = 3.3 V, nominal
IDD Current
850
A
Digital inputs equal to VDD or GND
750
A
VDD = 5 V
700
A
VDD = 3.3 V
IDD Current Power-Down Mode
0.5
2
A
Digital inputs equal to VDD or GND
1 Capacitance units: 1 pF = 10-12 F; 1 fF = 10-15 F; 1 aF = 10-18 F.
2 Specification is not production tested, but is supported by characterization data at initial product release.
3 Factory calibrated. The absolute error includes factory gain calibration error, integral nonlinearity error, and offset error after system offset calibration, all at 25°C. At
different temperatures, compensation for gain drift over temperature is required.
4 The capacitive input offset can be eliminated using a system offset calibration. The accuracy of the system offset calibration is limited by the offset calibration register
LSB size (32 aF) or by converter + system p-p noise during the system capacitive offset calibration, whichever is greater. To minimize the effect of the converter +
system noise, longer conversion times should be used for system capacitive offset calibration. The system capacitance offset calibration range is ±1 pF, the larger
offset can be removed using CAPDACs.
5 The gain error is factory calibrated at 25°C. At different temperatures, compensation for gain drift over temperature is required.
6 The CAPDAC resolution is seven bits in the actual CAPDAC full range. Using the on-chip offset calibration or adjusting the capacitive offset calibration register can
further reduce the CIN offset or the unchanging CIN component.
7 The VTCHOP bit in the VT SETUP register must be set to 1 for the specified temperature sensor and voltage input performance.
8 Using an external temperature sensing diode 2N3906, with nonideality factor nf = 1.008, connected as in Figure 41, with total serial resistance <100 .
9 Full-scale error applies to both positive and negative full scale.
相關(guān)PDF資料
PDF描述
AD7747ARUZ-REEL7 IC CONV CAP TO DIG 24BIT 16TSSOP
AD7808BR IC DAC 10BIT 3.3V OCTAL 24-SOIC
AD7849CR IC DAC 16BIT SRL INP 20-SOIC
AD7868BNZ IC I/O PORT 12BIT ANLG 24-DIP
AD7869JRZ IC I/O PORT 14BIT ANLG 28SOIC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD7746ARUZ-REEL 功能描述:IC CONV 2CH CAP TO DGTL 16-TSSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:50 系列:- 類型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤
AD7746ARUZ-REEL7 功能描述:IC CONV 2CH CAP TO DGTL 16-TSSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:50 系列:- 類型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤
AD7747 制造商:AD 制造商全稱:Analog Devices 功能描述:24-Bit Capacitance-to-Digital Converter with Temperature Sensor
AD7747ARUZ 功能描述:IC CONV 24BIT CAP-DGTL 16-TSSOP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Data Converter Basics 標準包裝:1 系列:- 類型:電機控制 分辨率（位）:12 b 采樣率（每秒）:1M 數(shù)據(jù)接口:串行，并聯(lián) 電壓電源:單電源 電源電壓:2.7 V ~ 3.6 V，4.5 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:100-TQFP 供應(yīng)商設(shè)備封裝:100-TQFP（14x14） 包裝:剪切帶 (CT) 其它名稱:296-18373-1
AD7747ARUZ-REEL 功能描述:IC CONV CAP TO DIG 24BIT 16TSSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:50 系列:- 類型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*