參數(shù)資料
型號(hào): AD620BRZ-RL
廠商: Analog Devices Inc
文件頁(yè)數(shù): 6/21頁(yè)
文件大?。?/td> 0K
描述: IC AMP INST LP LN 18MA 8SOIC
設(shè)計(jì)資源: Low Cost Programmable Gain Instrumentation Amplifier Circuit Using ADG1611 and AD620 (CN0146)
標(biāo)準(zhǔn)包裝: 2,500
放大器類型: 儀表
電路數(shù): 1
轉(zhuǎn)換速率: 1.2 V/µs
-3db帶寬: 1MHz
電流 - 輸入偏壓: 500pA
電壓 - 輸入偏移: 15µV
電流 - 電源: 900µA
電流 - 輸出 / 通道: 18mA
電壓 - 電源,單路/雙路(±): 4.6 V ~ 36 V,±2.3 V ~ 18 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 8-SOIC(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 8-SO
包裝: 帶卷 (TR)
AD620
Rev. H | Page 13 of 20
Regardless of the system in which it is being used, the AD620
provides greater accuracy at low power and price. In simple
systems, absolute accuracy and drift errors are by far the most
significant contributors to error. In more complex systems
with an intelligent processor, an autogain/autozero cycle
removes all absolute accuracy and drift errors, leaving only the
resolution errors of gain, nonlinearity, and noise, thus allowing
full 14-bit accuracy.
Note that for the homebrew circuit, the OP07 specifications for
input voltage offset and noise have been multiplied by √2. This
is because a three op amp type in-amp has two op amps at its
inputs, both contributing to the overall input error.
R = 350
Ω
10V
PRECISION BRIDGE TRANSDUCER
R = 350
Ω
R = 350
Ω
R = 350
Ω
00775-0-039
AD620A MONOLITHIC
INSTRUMENTATION
AMPLIFIER, G = 100
SUPPLY CURRENT = 1.3mA MAX
AD620A
RG
499
Ω
REFERENCE
00775-0-040
Figure 37. Make vs. Buy
"HOMEBREW" IN-AMP, G = 100
*0.02% RESISTOR MATCH, 3ppm/
°C TRACKING
**DISCRETE 1% RESISTOR, 100ppm/
°C TRACKING
SUPPLY CURRENT = 15mA MAX
100
Ω **
10k
Ω *
10k
Ω **
10k
Ω *
10k
Ω *
10k
Ω **
10k
Ω*
OP07D
00775-0-041
Table 4. Make vs. Buy Error Budget
Error, ppm of Full Scale
Error Source
AD620 Circuit Calculation
“Homebrew” Circuit Calculation
AD620
Homebrew
ABSOLUTE ACCURACY at TA = 25°C
Input Offset Voltage, μV
125 μV/20 mV
(150 μV × √2)/20 mV
6,250
10,607
Output Offset Voltage, μV
1000 μV/100 mV/20 mV
((150 μV × 2)/100)/20 mV
500
150
Input Offset Current, nA
2 nA ×350 Ω/20 mV
(6 nA ×350 Ω)/20 mV
18
53
CMR, dB
110 dB(3.16 ppm) ×5 V/20 mV
(0.02% Match × 5 V)/20 mV/100
791
500
Total Absolute Error
7,559
11,310
DRIFT TO 85°C
Gain Drift, ppm/°C
(50 ppm + 10 ppm) ×60°C
100 ppm/°C Track × 60°C
3,600
6,000
Input Offset Voltage Drift, μV/°C
1 μV/°C × 60°C/20 mV
(2.5 μV/°C × √2 × 60°C)/20 mV
3,000
10,607
Output Offset Voltage Drift, μV/°C
15 μV/°C × 60°C/100 mV/20 mV
(2.5 μV/°C × 2 × 60°C)/100 mV/20 mV
450
150
Total Drift Error
7,050
16,757
RESOLUTION
Gain Nonlinearity, ppm of Full Scale
40 ppm
40
Typ 0.1 Hz to 10 Hz Voltage Noise, μV p-p
0.28 μV p-p/20 mV
(0.38 μV p-p × √2)/20 mV
14
27
Total Resolution Error
54
67
Grand Total Error
14,663
28,134
G = 100, VS = ±15 V
.
(All errors are min/max and referred to input.)
相關(guān)PDF資料
PDF描述
0234003.MXBP FUSE 5X20 C/CODE M 3A/250V
AD629BR-REEL7 IC AMP DIFF 25MA LDRIFT 8SOIC
TSM-105-01-L-DV CONN HEADER 10POS .100" DBL SMD
AD629BR-REEL IC AMP DIFF 25MA LDRIFT 8SOIC
MTMM-106-09-T-D-090 CONN HEADER 12POS 2MM DL TIN
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD620SQ/883B 功能描述:儀表放大器 IC LOW POWER IN-AMP IC RoHS:否 制造商:Texas Instruments 通道數(shù)量: 輸入補(bǔ)償電壓:150 V 可用增益調(diào)整: 最大輸入電阻:10 kOhms 共模抑制比(最小值):88 dB 工作電源電壓:2.7 V to 36 V 電源電流:200 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:MSOP-8 封裝:Bulk
AD621 制造商:AD 制造商全稱:Analog Devices 功能描述:10 MHz, 20 V/レs, G = 1, 10, 100, 1000 i CMOS㈢ Programmable Gain Instrumentation Amplifier
AD621-00E 功能描述:SENS MAG SW 20G CROS AXIS 8-MSOP 制造商:nve corp/sensor products 系列:AD 包裝:管件 零件狀態(tài):有效 功能:全極開(kāi)關(guān) 技術(shù):霍爾效應(yīng) 極化:任意一種 感應(yīng)范圍:±2.5mT 跳閘,±1.1mT 釋放 測(cè)試條件:-40°C ~ 125°C 電壓 - 電源:4.5 V ~ 30 V 電流 - 電源(最大值):4.5mA 電流 - 輸出(最大值):20mA 輸出類型:開(kāi)路集電極 特性:- 工作溫度:-40°C ~ 125°C(TA) 封裝/外殼:8-TSSOP,8-MSOP(0.118",3.00mm 寬) 供應(yīng)商器件封裝:8-MSOP 標(biāo)準(zhǔn)包裝:1,000
AD621-02E 功能描述:SENSOR MAG SW 20G CROS AXS 8SOIC 制造商:nve corp/sensor products 系列:AD 包裝:管件 零件狀態(tài):有效 功能:全極開(kāi)關(guān) 技術(shù):霍爾效應(yīng) 極化:任意一種 感應(yīng)范圍:±2.5mT 跳閘,±1.1mT 釋放 測(cè)試條件:-40°C ~ 125°C 電壓 - 電源:4.5 V ~ 30 V 電流 - 電源(最大值):4.5mA 電流 - 輸出(最大值):20mA 輸出類型:開(kāi)路集電極 特性:- 工作溫度:-40°C ~ 125°C(TA) 封裝/外殼:8-SOIC(0.154",3.90mm 寬) 供應(yīng)商器件封裝:8-SOIC 標(biāo)準(zhǔn)包裝:1,000
AD621A 制造商:AD 制造商全稱:Analog Devices 功能描述:Low Drift, Low Power Instrumentation Amplifier