參數(shù)資料
型號: AD8220BRMZ-RL
廠商: Analog Devices Inc
文件頁數(shù): 16/28頁
文件大?。?/td> 0K
描述: IC AMP INST JFET R-R 15MA 8MSOP
產(chǎn)品培訓(xùn)模塊: Power Line Monitoring
設(shè)計資源: Fully Isolated Input Module Based on AD7793, ADuM5401, and a High Performance In-Amp (CN0067)
標(biāo)準(zhǔn)包裝: 3,000
放大器類型: 儀表
電路數(shù): 1
輸出類型: 滿擺幅
轉(zhuǎn)換速率: 2 V/µs
-3db帶寬: 1.5MHz
電流 - 輸入偏壓: 10pA
電壓 - 輸入偏移: 125µV
電流 - 電源: 750µA
電流 - 輸出 / 通道: 15mA
電壓 - 電源,單路/雙路(±): 4.5 V ~ 36 V,±2.25 V ~ 18 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 8-TSSOP,8-MSOP(0.118",3.00mm 寬)
供應(yīng)商設(shè)備封裝: 8-MSOP
包裝: 帶卷 (TR)
AD8220
Rev. B | Page 23 of 28
APPLICATIONS INFORMATION
AC-COUPLED INSTRUMENTATION AMPLIFIER
Measuring small signals that are in the noise or offset of the
amplifier can be a challenge. Figure 64 shows a circuit that
can improve the resolution of small ac signals. The large gain
reduces the referred input noise of the amplifier to 14 nV/√Hz.
Therefore, smaller signals can be measured because the noise
floor is lower. DC offsets that would have been gained by 100
are eliminated from the AD8220 output by the integrator
feedback network.
At low frequencies, the OP1177 forces the AD8220 output to
0 V. Once a signal exceeds fHIGH-PASS, the AD8220 outputs the
amplified input signal.
AD8220
OP1177
R
15.8k
+VS
+IN
–IN
0.1F
10F
REF
C
1F
–VS
+VS
–VS
R
499
1
2πRC
fHIGH-PASS =
VREF
03
57
9-
00
4
Figure 64. AC-Coupled Circuit
DIFFERENTIAL OUTPUT
In certain applications, it is necessary to create a differential
signal. New high resolution ADCs often require a differential
input. In other cases, transmission over a long distance can
require differential processing for better immunity to
interference.
Figure 65 shows how to configure the AD8220 to output a
differential signal. An OP1177 op amp is used to create a
differential voltage. Errors from the op amp are common to
both outputs and are thus common mode. Likewise, errors from
using mismatched resistors cause a common-mode dc offset
error. Such errors are rejected in differential signal processing
by differential input ADCs or instrumentation amplifiers.
When using this circuit to drive a differential ADC, VREF can be
set using a resistor divider from the reference of the ADC to
make the output ratiometric with the ADC as shown in Figure 66.
相關(guān)PDF資料
PDF描述
RPC2010JT10R0 RES PULSE 10 OHM 0.75W 5% 2010
151218-7422-TB CONN HEADER 2MM 18PS DL R/A 30AU
644873-1 CONN HEADER 17POS VERT .156 TIN
2089-300-BT1LF SURGE ARRESTOR GDT 3000V AXIAL
RPC2010JT2R20 RES PULSE 2.2 OHM 0.75W 5% 2010
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD8220-EVAL 制造商:AD 制造商全稱:Analog Devices 功能描述:JFET Input Instrumentation Amplifier with Rail-to-Rail Output in MSOP Package
AD8220-EVALZ 制造商:Analog Devices 功能描述:Evaluation Board For JFET Instrumentation Amplifier Evaluation Board 制造商:Analog Devices 功能描述:JFET INSTRUMENTATION AMP EVAL BD - Bulk 制造商:Analog Devices 功能描述:AD8220 Evaluation Board
AD8220TRMZ-EP 功能描述:IC OP AMP JFET RR 8MSOP 制造商:analog devices inc. 系列:- 包裝:管件 零件狀態(tài):在售 放大器類型:J-FET 電路數(shù):1 輸出類型:滿擺幅 壓擺率:2 V/μs -3db 帶寬:1.5MHz 電流 - 電源:750μA 電流 - 輸出/通道:15mA 電壓 - 電源,單/雙(±):4.5 V ~ 36 V,±2.25 V ~ 18 V 工作溫度:-55°C ~ 125°C 安裝類型:表面貼裝 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:50
AD8220TRMZ-EP-R7 功能描述:IC OP AMP JFET RR 8MSOP 制造商:analog devices inc. 系列:- 包裝:帶卷(TR) 零件狀態(tài):在售 放大器類型:J-FET 電路數(shù):1 輸出類型:滿擺幅 壓擺率:2 V/μs -3db 帶寬:1.5MHz 電流 - 電源:750μA 電壓 - 電源,單/雙(±):4.5 V ~ 36 V,±2.25 V ~ 18 V 工作溫度:-55°C ~ 125°C 安裝類型:表面貼裝 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
AD8220WARMZ 功能描述:IC AMP INST JFET R-R 15MA 8MSOP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:0.028 V/µs 增益帶寬積:105kHz -3db帶寬:- 電流 - 輸入偏壓:3nA 電壓 - 輸入偏移:100µV 電流 - 電源:3.3µA 電流 - 輸出 / 通道:12mA 電壓 - 電源,單路/雙路(±):2.7 V ~ 12 V,±1.35 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP(0.173",4.40mm 寬) 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:剪切帶 (CT) 其它名稱:OP481GRUZ-REELCT