TYPICAL APPLICATIONS N U LINEAR TECHNOLOGY COR" />
參數(shù)資料
型號(hào): LT1169CS8#TR
廠商: Linear Technology
文件頁(yè)數(shù): 4/12頁(yè)
文件大?。?/td> 0K
描述: IC OPAMP JFET DUAL LONOISE 8SOIC
標(biāo)準(zhǔn)包裝: 2,500
放大器類型: J-FET
電路數(shù): 2
轉(zhuǎn)換速率: 4.2 V/µs
增益帶寬積: 5.3MHz
電流 - 輸入偏壓: 4pA
電壓 - 輸入偏移: 600µV
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: 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)
12
LT1169
TYPICAL APPLICATIONS N
U
LINEAR TECHNOLOGY CORPORATION 1994
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417q (408)432-1900
FAX: (408) 434-0507qTELEX: 499-3977q www.linear-tech.com
1169fa LT/TP 0198 REV A 4K PRINTED IN USA
10Hz Fourth Order Chebyshev Lowpass Filter (0.01dB Ripple)
LT1169 TA08
VOUT
TYPICAL OFFSET
≈ 0.8mV
1% TOLERANCES
FOR VIN = 10VP-P, VOUT = –121dB AT f > 330Hz
= – 6dB AT f = 16.3Hz
LOWER RESISTOR VALUES WILL RESULT IN LOWER THERMAL NOISE AND LARGER CAPACITORS
R3
249k
C2
100nF
C1
33nF
R1
237k
VIN
R2
237k
R6
249k
C4
330nF
5
6
+
1/2 LT1169
7
C3
10nF
R4
154k
R5
154k
8
1
15V
–15V
4
3
2
+
1/2 LT1169
1. ASSUME VOLTAGE NOISE OF LT1169 AND 51
SOURCE RESISTOR = 6.1nV/√Hz
2. GAIN WITH n LT1169s IN PARALLEL = n
× 200
3. OUTPUT NOISE =
√n × 200 × 6.1nV/√Hz
4. INPUT REFERRED NOISE =
OUTPUT NOISE
=
6.1
nV/
√H
z
n
× 200
√n
5. NOISE CURRENT AT INPUT INCREASES
√n TIMES
6. IF n = 5, GAIN = 1000, BANDWIDTH = 110kHz, RMS NOISE, DC TO 1MHz =
2.1
V
= 1.0
V
8
15V
–15V
4
8
15V
–15V
4
LT1169 TA06
1.6k
91
7
6
5
3k
1.6k
91
1
2
3
+
A2
1/2 LT1169
+
1.6k
91
1
2
3
A1
1/2 LT1169
10k
7
5
6
+
1/2 LT1169
+
An
1/2 LT1169
3k
OUTPUT
√5
Paralleling Amplifiers to Reduce Voltage Noise
RELATED PARTS
PART NUMBER
DESCRIPTION
COMMENTS
LT1113
Lowest Noise Dual JFET Op Amp
4.5nV/
√Hz Voltage Noise
LT1462
Micro Power Dual JFET Op Amp
3.0pA IB, 45A ISUPPLY
LT1464
Low Power Dual JFET Op Amp
3.0pA (Max) Input Bias Current
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