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參數資料
型號: AD7705(中文)
廠商: Analog Devices, Inc.
英文描述: 3 V/5 V, 1 Mw 2-/3-Channel 16-Bit, Sigma-Delta ADCs(完全差分輸入通道16位A/D轉換器)
中文描述: 3伏/ 5伏,1兆瓦2-/3-Channel 16位Σ-Δ模數轉換器(完全差分輸入通道16位的A / D轉換器)
文件頁數: 5/35頁
文件大小: 652K
代理商: AD7705(中文)
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2. 2 μìD
£¨
V
DD
=+3V
ò
+5V
REF IN
£¨
+
=+1.225V
REF IN
£¨£-£
=GND
MCLK IN=2.4576MHz
T
A
=T
MIN
T
MAX
£3y· áí óDμ÷££
B Version
1
Units
Parameter
Conditions/Comments
STATIC PERFORMANCE
No Missing Codes
Output Noise
Integral Nonlinearity
2
Unipolar Offset Error
Unipolar Offset Drift
4
Bipolar Zero Error
Bipolar Zero Drift
4
16
See Tables I and III
0.003
See Note 3
0.5
See Note 3
0.5
0.1
See Note 3
0.5
See Note 3
0.5
0.003
1
0.6
Bits min
Guaranteed by Design. Filter Notch < 60 Hz
Depends on Filter Cutoffs and Selected Gain
Filter Notch < 60 Hz. Typically 0.0003%
% of FSR max
V/ C typ
V/ C typ
V/ C typ
For Gains 1, 2 and 4
For Gains 8, 16, 32, 64 and 128
Positive Full-Scale Error
5
Full-Scale Drift
Gain Error
7
Gain Drift
4, 8
Bipolar Negative Full-Scale Error
2
Bipolar Negative Full-Scale Drift
4
V/ C typ
ppm of FSR/ C typ
% of FSR typ
V/ C typ
V/ C typ
Typically 0.001%
For Gains of 1 to 4
For Gains of 8 to 128
Specifications for AIN and REF IN Unless Noted
ANALOG INPUTS/REFERENCE INPUTS
Input Common-Mode Rejection CMR)
2
V
DD
= 5 V
Gain = 1
Gain = 2
Gain = 4
Gain = 8 128
V
DD
= 3 V
Gain = 1
Gain = 2
Gain = 4
Gain = 8 128
Normal-Mode 50 Hz Rejection
2
Normal-Mode 60 Hz Rejection
2
Common-Mode 50 Hz Rejection
2
Common-Mode 60 Hz Rejection
2
Absolute/Common-Mode REF IN Voltage
2
Absolute/Common-Mode AIN Voltage
2, 9
96
105
110
130
dB typ
dB typ
dB typ
dB typ
105
110
120
130
98
98
150
150
GND to V
GND 30 mV
V
+ 30 mV
GND + 50 mV
V
DD
1.5 V
1
10
0 to +V
/GAIN
11
V
/GAIN
GAIN f
CLKI N
/64
f
CLKI N
/8
dB typ
dB typ
dB typ
dB typ
dB typ
dB typ
dB typ
dB typ
V min to V max
V min
V max
V min
V max
nA max
pF max
nom
nom
For Filter Notches of 25 Hz, 50 Hz, 0.02 f
NOTCH
For Filter Notches of 20 Hz, 60 Hz, 0.02 f
NOTCH
For Filter Notches of 25 Hz, 50 Hz, 0.02 f
NOTCH
For Filter Notches of 20 Hz, 60 Hz, 0.02 f
NOTCH
BUF Bit of Setup Register = 0
Absolute/Common-Mode AIN Voltage
2, 9
BUF Bit of Setup Register = 1
AIN DC Input Current
2
AIN Sampling Capacitance
2
AIN Differential Voltage Range
10
Unipolar Input Range (B/U Bit of Setup Register = 1)
Bipolar Input Range (B/U Bit of Setup Register = 0)
For Gains of 1 to 4
For Gains of 8 to 128
AIN Input Sampling Rate,
S
Reference nput Range
REF IN(+) REF IN( ) Voltage
1/1.75
V min/max
V
= 2.7 V to 3.3 V. V
REF
= 1.225 1% for Specified
Performance
V
= 4.75 V to 5.25 V. V
REF
= 2.5 1% for Specified
Performance
REF IN(+) REF IN( ) Voltage
1/3.5
V min/max
REF IN Input Sampling Rate,
S
LOGIC INPUTS
Input Current
All Inputs Except MCLK IN
MCLK
All Inputs Except SCLK and MCLK IN
V
INL
, Input Low Voltage
f
CLKI N
/64
1
10
A max
A max
Typically 20 nA
Typically 2 A
0.8
0.4
2.0
V max
V max
V min
V
DD
= 5 V
V
DD
= 3 V
V
DD
= 3 V and 5 V
V
DD
= 5 V NOMINAL
V
, Input High Voltage
SCLK Only (Schmitt Triggered nput)
V
T+
V
T
V
V
SCLK Only (Schmitt Triggered nput)
V
T+
V
T
V
V
MCLK IN Only
V
INL
, Input Low Voltage
V
, Input High Voltage
MCLK IN Only
V
INL
, Input Low Voltage
V
INH
, Input High Voltage
1.4/3
0.8/1.4
0.4/0.8
V min/V max
V min/V max
V min/V max
V
DD
= 3 V NOMINAL
1/2.5
0.4/1.1
0.375/0.8
V min/V max
V min/V max
V min/V max
V
DD
= 5 V NOMINAL
0.8
3.5
V max
V min
V
DD
= 3 V NOMINAL
0.4
2.5
V max
V min
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參數描述
AD7705_06 制造商:AD 制造商全稱:Analog Devices 功能描述:3 V/5 V, 1 mW, 2-/3-Channel, 16-Bit, Sigma-Delta ADCs
AD7705BN 功能描述:IC ADC 16BIT 2CH 16-DIP 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
AD7705BNZ 功能描述:IC ADC 16BIT 2CH 16-DIP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 其它有關文件:TSA1204 View All Specifications 標準包裝:1 系列:- 位數:12 采樣率(每秒):20M 數據接口:并聯 轉換器數目:2 功率耗散(最大):155mW 電壓電源:模擬和數字 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-TQFP 供應商設備封裝:48-TQFP(7x7) 包裝:Digi-Reel® 輸入數目和類型:4 個單端,單極;2 個差分,單極 產品目錄頁面:1156 (CN2011-ZH PDF) 其它名稱:497-5435-6
AD7705BNZ1 制造商:AD 制造商全稱:Analog Devices 功能描述:3 V/5 V, 1 mW, 2-/3-Channel, 16-Bit, Sigma-Delta ADCs
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