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參數(shù)資料
| 型號： | AD795JRZ-REEL |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 4/20頁 |
| 文件大小： | 0K |
| 描述： | IC OPAMP JFET 1.6MHZ LN 8SOIC |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 放大器類型： | J-FET |
| 電路數(shù)： | 1 |
| 轉(zhuǎn)換速率： | 1 V/µs |
| -3db帶寬： | 1.6MHz |
| 電流 - 輸入偏壓： | 1pA |
| 電壓 - 輸入偏移： | 100µV |
| 電流 - 電源： | 1.3mA |
| 電流 - 輸出 / 通道： | 10mA |
| 電壓 - 電源，單路/雙路(±)： | 8 V ~ 36 V，±4 V ~ 18 V |
| 工作溫度： | 0°C ~ 70°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) |
AD795
Rev. C | Page 12 of 20
CIRCUIT BOARD NOTES
The AD795 is designed for mounting on printed circuit boards
(PCBs). Maintaining picoampere resolution in those environ-
ments requires a lot of care. Both the board and the amplifier’s
package have finite resistance. Voltage differences between the
input pins and other pins as well as PCB metal traces causes
parasitic currents (see Figure 33) larger than the AD795’s input
current unless special precautions are taken. Two methods of
minimizing parasitic leakages include guarding of the input lines
and maintaining adequate insulation resistance.
Figure 34 and Figure 35 show the recommended guarding
schemes for noninverting and inverting topologies. Pin 1 is not
connected, and can be safely connected to the guard. The high
impedance input trace should be guarded on both edges for its
entire length.
00
84
5-
0
33
3
6
2
AD795
+
–
VOUT
CF
VE
VS
IP
IS
RF
CP
RP
VS
IP =
VS
RP
dCP
dT
dV
dT
CP
++
Figure 33. Sources of Parasitic Leakage Currents
00
84
5-
03
4
NOTES
1. ON THE “R” PACKAGE PIN 1, PIN 5, AND PIN 8 ARE OPEN
AND CAN BE CONNECTED TO ANALOG COMMON OR TO
THE DRIVEN GUARD TO REDUCE LEAKAGE.
3
6
2
AD795
+
–
VOUT
CF
IS
RF
GUARD
1
2
3
4
8
7
6
5
TOP VIEW
(“R” PACKAGE)
8
7
6
5
Figure 34. Guarding Scheme—lnverter
00
84
5-
0
35
GUARD TRACES
INPUT
TRACE
1
2
3
4
8
7
6
5
AD795
TOP VIEW
8
7
6
5
CONNECT TO JUNCTION OF
RF AND RI OR TO PIN 6 FOR
UNITY GAIN.
2
6
3
AD795
+
VOUT
VS
RF
GUARD
RI
–
Figure 35. Guard Scheme—Follower
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|---|---|
| AD795JRZ-REEL7 | 功能描述:IC OPAMP JFET 1.6MHZ LN 8SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:73 系列:Over-The-Top® 放大器類型:通用 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:0.07 V/µs 增益帶寬積:200kHz -3db帶寬:- 電流 - 輸入偏壓:1nA 電壓 - 輸入偏移:285µV 電流 - 電源:50µA 電流 - 輸出 / 通道:25mA 電壓 - 電源，單路/雙路(±):2 V ~ 44 V，±1 V ~ 22 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:16-DFN-EP（5x3） 包裝:管件 |
| AD795KN | 制造商:AD 制造商全稱:Analog Devices 功能描述:Low Power, Low Noise Precision FET Op Amp |
| AD795SH-883B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Feedback Operational Amplifier |
| AD7960 | 制造商:AD 制造商全稱:Analog Devices 功能描述:18-Bit, 5 MSPS PulSAR Differential ADC |
| AD7960BCPZ | 制造商:Analog Devices 功能描述:18-BIT 5MSPS INT 4.096V VREF L/P IC - Trays 制造商:Analog Devices 功能描述:IC ADC 18BIT SAR 5MSPS 32LFCSP 制造商:Analog Devices 功能描述:AD CONVERTOR 18 BIT LDVS LF 制造商:Analog Devices 功能描述:ADC, 18BIT, 5MSPS, LFCSP-32, Resolution (Bits):18bit, Sampling Rate:5MSPS, Supply Voltage Type:Dual (+/-), Supply Voltage Min:1.71V, Supply Voltage Max:5.25V, Supply Current:8A, Digital IC Case Style:LFCSP, No. of Pins:32 制造商:Analog Devices 功能描述:CONVERTER - ADC |
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