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參數(shù)資料
| 型號： | LT1113ACN8#PBF |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 4/16頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC PREC OP-AMP JFET DUAL 8-DIP |
| 標(biāo)準(zhǔn)包裝： | 50 |
| 放大器類型： | J-FET |
| 電路數(shù)： | 2 |
| 轉(zhuǎn)換速率： | 3.9 V/µs |
| 增益帶寬積： | 5.6MHz |
| 電流 - 輸入偏壓： | 300pA |
| 電壓 - 輸入偏移： | 400µV |
| 電流 - 電源： | 5.3mA |
| 電壓 - 電源，單路/雙路(±)： | ±4.5 V ~ 20 V |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 通孔 |
| 封裝/外殼： | 8-DIP（0.300"，7.62mm） |
| 供應(yīng)商設(shè)備封裝： | 8-PDIP |
| 包裝： | 管件 |
12
LT1113
1113fb
U
S
A
O
PPLICATI
WU
U
I FOR ATIO
Typical performance of the instrumentation amplifier:
Input offset voltage = 0.8mV
Input bias current = 320pA
Input offset current = 10pA
Input resistance = 1011
Input noise = 3.4
VP-P
High Speed Operation
The low noise performance of the LT1113 was achieved by
making the input JFET differential pair large to maximize
the first stage gain. Increasing the JFET geometry also
increases the parasitic gate capacitance, which if left
unchecked, can result in increased overshoot and ringing.
When the feedback around the op amp is resistive (RF),
a pole will be created with RF, the source resistance and
capacitance (RS,CS), and the amplifier input capacitance
(CIN = 27pF). In closed loop gain configurations and
with RS and RF in the kilohm range (Figure 5), this pole
can create excess phase shift and even oscillation.
A small capacitor (CF) in parallel with RF eliminates this
problem. With RS(CS + CIN) = RFCF, the effect of the
feedback pole is completely removed.
Figure 5.
The concepts of common mode and power supply
rejection ratio match (
CMRR and PSRR) are best
demonstrated with a numerical example:
Assume CMRRA = +50V/V or 86dB,
and CMRRB = + 39V/V or 88dB,
then
CMRR = 11V/V or 99dB;
if CMRRB = -39V/V which is still 88dB,
then
CMRR = 89V/V or 81dB
Clearly the LT1113, by specifying and guaranteeing all of
these matching parameters, can significantly improve the
performance of matching-dependent circuits.
Figure 4. Three Op Amp Instrumentation Amplifier
4
OUTPUT
C1
50pF
R7
10k
R6
10k
1113 F04
GAIN =
BANDWIDTH =
INPUT REFERRED NOISE =
WIDEBAND NOISE DC TO 400kHz =
CL ≤
100
400kHz
6.6nV/
√Hz AT 1kHz
6.6
VRMS
0.01
F
IN–
15V
8
1
–15V
–
+
–
+
1/2
LT1113
IC1
1/2
LT1113
IC1
IN+
R3
1k
R2
200
R1
1k
7
6
5
3
2
R4
1k
1
2
CL
3
–
+
1/2
LT1113
IC2
R5
1k
–
+
1113 F05
OUTPUT
RF
RS
CS
CIN
CF
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| LT1113AM | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual Low Noise, Precision, JFET Input Op Amps |
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| LT1113CN8 | 功能描述:IC PREC OP-AMP JFET DUAL 8-DIP RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 放大器類型:通用 電路數(shù):2 輸出類型:滿擺幅 轉(zhuǎn)換速率:350 V/µs 增益帶寬積:180MHz -3db帶寬:320MHz 電流 - 輸入偏壓:12.5µA 電壓 - 輸入偏移:800µV 電流 - 電源:15mA 電流 - 輸出 / 通道:85mA 電壓 - 電源，單路/雙路(±):2.5 V ~ 12.6 V，±1.25 V ~ 6.3 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) |
| LT1113CN8#PBF | 功能描述:IC PREC OP-AMP JFET DUAL 8-DIP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:- 轉(zhuǎn)換速率:0.6 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:45nA 電壓 - 輸入偏移:2000µV 電流 - 電源:1.4mA 電流 - 輸出 / 通道:40mA 電壓 - 電源，單路/雙路(±):3 V ~ 32 V，±1.5 V ~ 16 V 工作溫度:0°C ~ 70°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:帶卷 (TR) 其它名稱:LM324ADTBR2G-NDLM324ADTBR2GOSTR |
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