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參數(shù)資料
| 型號： | LT1880CS5 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 運動控制電子 |
| 英文描述： | SOT-23, Rail-to-Rail Output, Picoamp Input Current Precision Op Amp |
| 中文描述： | OP-AMP, 200 uV OFFSET-MAX, 1.1 MHz BAND WIDTH, PDSO5 |
| 封裝： | PLASTIC, MO-193, SC-74A, SOT-23, 5 PIN |
| 文件頁數(shù)： | 9/12頁 |
| 文件大?。?/td> | 240K |
| 代理商： | LT1880CS5 |
LT1880
9
The circuit of Figure 2 shows an extreme example of the
inverting case. The input voltage at the 1M resistor can
swing
±
13.5V and the LT1880 will output an inverted,
divided-by-ten version of the input voltage. The input
accuracy is limited by the resistors to 0.2%. Output
referred, this error becomes 2.7mV. The 40
μ
V input offset
voltage contribution, plus the additional error due to input
bias current times the ~100k effective source impedance,
contribute only negligibly to error.
–
+
V
REF
V
IN
R
G
R
F
INVERTING: A
= –R
/R
OP AMP INPUTS DO NOT MOVE,
BUT ARE FIXED AT DC BIAS
POINT V
REF
INPUT DOES NOT HAVE TO BE
RAIL-TO-RAIL
–
+
V
REF
V
IN
R
G
R
F
NONINVERTING: A
= 1 + R
/R
G
INPUTS MOVE BY AS MUCH AS
V
IN
, BUT THE OUTPUT MOVES
MORE
INPUT MAY NOT HAVE TO BE
RAIL-TO-RAIL
–
+
V
IN
NONINVERTING: A
= +1
INPUTS MOVE AS MUCH AS
OUTPUT
INPUT MUST BE RAIL-TO-
RAIL FOR OVERALL CIRCUIT
RAIL-TO-RAIL PERFORMANCE
APPLICATIOU
W
U
U
1.5V
–1.5V
100k, 0.1%
1M, 0.1%
V
IN
±
1.35V
OUTPUT
SWING
±
13.5V SWINGS
WELL OUTSIDE
SUPPLY RAILS
–
+
LT1880
Precision Photodiode Amplifier
Photodiode amplifiers usually employ JFET op amps be-
cause of their low bias current; however, when precision
is required, JFET op amps are generally inadequate due to
their relatively high input offset voltage and drift. The
LT1880 provides a high degree of precision with very low
bias current (I
B
= 150pA typical) and is therefore appli-
cable to this demanding task. Figure 3 shows an LT1880
configured as a transimpedance photodiode amplifier.
–
+
OUT
C
F
R
F
51.1k
5V
–5V
C
D
PHOTODIODE
(SEE TEXT)
LT1880
WORST-CASE
OUTPUT OFFSET
≤
196
μ
V AT 25
°
C
≤
262
μ
V 0
°
C TO 70
°
C
≤
323
μ
V –40
°
C TO 85
°
C
Figure 1. Some Op Amp Configurations Do Not Require
Rail-to Rail Inputs to Achieve Rail-to-Rail Outputs
Figure 2. Extreme Inverting Case: Circuit Operates Properly
with Input Voltage Swing Well Outside Op Amp Supply Rails.
Figure 3. Precision Photodiode Amplifier
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LT1880IS5 | SOT-23, Rail-to-Rail Output, Picoamp Input Current Precision Op Amp |
| LT1881ACN8 | Dual and Quad Rail-to-Rail Output, Picoamp Input Precision Op Amps |
| LT1881AIN8 | JT 85C 85#22 PIN PLUG |
| LT1881IN8 | Dual and Quad Rail-to-Rail Output, Picoamp Input Precision Op Amps |
| LT1881ACS8 | Dual and Quad Rail-to-Rail Output, Picoamp Input Precision Op Amps |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1880CS5#PBF | 制造商:Linear Technology 功能描述:IC, OP-AMP; Op Amp Type:Precision; No. of Amplifiers:1; Slew Rate:0.4V/s; Supply Voltage Range:2.7V to 36V, 1.5V to 18V; Amplifier Case Style:SOT-23; No. of Pins:5; Bandwidth:1.1MHz; Operating Temperature Min:0C ;RoHS Compliant: Yes |
| LT1880CS5#TR | 功能描述:IC OPAMP PICO/IN RR/OUT TSOT23-5 RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝: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:0.6 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:2pA 電壓 - 輸入偏移:1000µV 電流 - 電源:85µA 電流 - 輸出 / 通道:20mA 電壓 - 電源，單路/雙路(±):1.8 V ~ 6 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:14-SOICN 包裝:剪切帶 (CT) 產(chǎn)品目錄頁面:680 (CN2011-ZH PDF) 其它名稱:MCP6L04T-E/SLCT |
| LT1880CS5#TRM | 功能描述:IC OPAMP PICO/IN RR/OUT TSOT23-5 RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝: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:0.6 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:2pA 電壓 - 輸入偏移:1000µV 電流 - 電源:85µA 電流 - 輸出 / 通道:20mA 電壓 - 電源，單路/雙路(±):1.8 V ~ 6 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:14-SOICN 包裝:剪切帶 (CT) 產(chǎn)品目錄頁面:680 (CN2011-ZH PDF) 其它名稱:MCP6L04T-E/SLCT |
| LT1880CS5#TRMPBF | 功能描述:IC OPAMP PICO/IN RR/OUT TSOT23-5 RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 產(chǎn)品培訓模塊:Differential Circuit Design Techniques for Communication Applications 標準包裝:1 系列:- 放大器類型:RF/IF 差分 電路數(shù):1 輸出類型:差分 轉(zhuǎn)換速率:9800 V/µs 增益帶寬積:- -3db帶寬:2.9GHz 電流 - 輸入偏壓:3µA 電壓 - 輸入偏移:- 電流 - 電源:40mA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):3 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-VQFN 裸露焊盤，CSP 供應(yīng)商設(shè)備封裝:16-LFCSP-VQ 包裝:剪切帶 (CT) 產(chǎn)品目錄頁面:551 (CN2011-ZH PDF) 其它名稱:ADL5561ACPZ-R7CT |
| LT1880CS5#TRPBF | 功能描述:IC OPAMP PICO/IN RR/OUT TSOT23-5 RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝: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:0.6 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:2pA 電壓 - 輸入偏移:1000µV 電流 - 電源:85µA 電流 - 輸出 / 通道:20mA 電壓 - 電源，單路/雙路(±):1.8 V ~ 6 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:14-SOICN 包裝:剪切帶 (CT) 產(chǎn)品目錄頁面:680 (CN2011-ZH PDF) 其它名稱:MCP6L04T-E/SLCT |
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