- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄377717 > LT1880 (Linear Technology Corporation) SOT-23, Rail-to-Rail Output, Picoamp Input Current Precision Op Amp PDF資料下載
參數(shù)資料
| 型號： | LT1880 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | SOT-23, Rail-to-Rail Output, Picoamp Input Current Precision Op Amp |
| 中文描述： | 采用SOT - 23，軌至軌輸出，Picoamp輸入電流精密運算放大器 |
| 文件頁數(shù)： | 10/12頁 |
| 文件大小： | 240K |
| 代理商： | LT1880 |
LT1880
10
The transimpedance gain is set to 51.1k
by R
F
. The
feedback capacitor, C
F
, may be as large as desired where
response time is not an issue, or it may be selected for
maximally flat response and highest possible bandwidth
given a photodiode capacitance C
D
. Figure 4 shows a chart
of C
F
and rise time versus C
D
for maximally flat response.
Total output offset is below 262
μ
V, worst-case, over
temperature (0
°
C–70
°
C). With a 5V output swing, this
guarantees a minimum 86dB dynamic range over
temperature (0
°
C–70
°
C), and a full-scale photodiode
current of 98
μ
A.
Single-Supply Current Source for Platinum RTD
The precision, low bias current input stage of the LT1880
makes it ideal for precision integrators and current sources.
Figure 5 shows the LT1880 providing a simple precision
current source for a remote 1k
RTD on a 4-wire
connection. The LT1634 reference places 1.25V at the
noninverting input of the LT1880, which then maintains its
inverting input at the same voltage by driving 1mA of
current through the RTD and the total 1.25k
of resis-
tance set by R1 and R2. Imprecise components R4 and C1
ensure circuit stability, which would otherwise be exces-
sively dependant on the cable characteristics. R5 is also
noncritical and is included to improve ESD immunity and
decouple any cable capacitance from the LT1880’s output.
The 4-wire cable allows Kelvin sensing of the RTD voltage
while excluding the cable IR drops from the voltage
reading. With 1mA excitation, a 1k
RTD will have 1V
across it at 0
°
C, and +3.85mV/
°
C temperature response.
This voltage can be easily read in myriad ways, with the
best method depending on the temperature region to be
emphasized and the particular ADC that will be reading the
voltage.
R5
180
, 5%
0.1
1
10
100
1000
100
10
1
0.1
C
D
(pF)
C
F
RISE TIME
R
μ
s
F
100mV OUTPUT STEP
–
+
5V
R3
150k, 1%
LT1634ACS8
-1.25
R1
1.24K
0.1%
R2
10
1%
C1
0.1
μ
F
1k
AT 0
°
C
RTD*
R4
1k, 5%
V
OUT
= 1.00V AT 0
°
C + 3.85mV/
°
C
–50
°
C TO 600
°
C
–
+
5V
*OMEGA F3141 1k
, 0.1% PLATINUM RTD
(800) 826-6342
LT1880
Figure 4. Feedback C
F
and Rise Time vs Photodiode C
D
APPLICATIOU
W
U
U
Figure 5. Single Supply Current Source for Platinum RTD
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LT1880CS5 | SOT-23, Rail-to-Rail Output, Picoamp Input Current Precision Op Amp |
| 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 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1880CS5 | 制造商:Linear Technology 功能描述:OP Amp Single GP R-R O/P ±18V/36V 5-Pin TSOT-23 |
| 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(xùn)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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。