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參數資料
| 型號： | LT1169CS8 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 運動控制電子 |
| 英文描述： | Dual Low Noise, Picoampere Bias Current, JFET Input Op Amp |
| 中文描述： | DUAL OP-AMP, 4000 uV OFFSET-MAX, 4 MHz BAND WIDTH, PDSO8 |
| 封裝： | 0.150 INCH, PLASTIC, SO-8 |
| 文件頁數： | 10/12頁 |
| 文件大?。?/td> | 333K |
| 代理商： | LT1169CS8 |
10
LT1169
U
S
A
O
PPLICATI
U
U
Input offset current = 3pA
Input resistance = 10
13
Input noise = 3.4
μ
V
P-P
High Speed Operation
The low noise performance of the LT1169 was achieved by
enlarging the input JFET differential pair to maximize the
first stage gain. Enlarging the JFET geometry also increases
the parasitic gate capacitance, which if left unchecked, can
result in increased overshoot and ringing. When the feed-
back around the op amp is resistive (R
F
), a pole will be
created with R
F
, the source resistance and capacitance
(R
S
,C
S
), and the amplifier input capacitance (C
IN
= 1.5pF).
In closed-loop gain configurations with R
S
and R
F
in the
M
range (Figure 6), this pole can create excess phase shift
and even oscillation. A small capacitor (C
F
) in parallel with
R
F
eliminates this problem. With R
S
(C
S
+ C
IN
) = R
F
C
F
, the
effect of the feedback pole is completely removed.
Light Balance Detection Circuit
Unity-Gain Buffer with Extended Load Capacitance
Drive Capability
R2
1k
TYPICAL APPLICATIO
S
N
U
Assume CMRR
A
= 50
μ
V/V or 86dB,
and CMRR
B
= 39
μ
V/V or 88dB,
then
CMRR = 11
μ
V/V or 99dB;
if CMRR
B
= –39
μ
V/V which is still 88dB,
then
CMRR = 89
μ
V/V or 81dB
By specifying and guaranteeing all of these matching
parameters, the LT1169 can significantly improve the
performance of matching-dependent circuits.
Typical performance of the instrumentation amplifier:
Input offset voltage = 0.8mV
Input bias current = 4pA
Figure 5. Three Op Amp Instrumentation Amplifier
–
+
LT1169 F06
OUTPUT
R
F
R
S
C
S
C
IN
C
F
Figure 6
4
2
3
OUTPUT
C1
30pF
R7
10k
R6
10k
LT1169 F05
GAIN =
BANDWIDTH =
INPUT REFERRED NOISE =
WIDEBAND NOISE DC TO 330kHz =
C
L
≤
100
330kHz
8.7nV/
√
Hz AT 1kHz
5.3
μ
V
RMS
0.01
μ
F
IN–
15V
8
1
–15V
–
+
–
+
1/2
LT1169
IC1
1/2
LT1169
IC1
IN
+
R3
1k
R2
200
R1
1k
7
6
5
R4
1k
1
2
C
L
3
–
+
1/2
LT1169
IC2
R5
1k
LT1169 TA03
V
OUT
–
1/2 LT1169
+
C1
V
IN
C
L
R1
33
C1 = C
≤
0.1
μ
F
OUTPUT SHORT CIRCUIT CURRENT (
～
30mA) WILL LIMIT THE RATE
AT WHICH THE VOLTAGE CAN CHANGE ACROSS LARGE CAPACITORS
(I = CdV)
LT1169 TA04
V
OUT
= 1M
×
(I
– I
)
PD
1,
PD
2
= HAMAMATSU S1336-5BK
WHEN EQUAL LIGHT ENTERS PHOTODIODES, V
OUT
< 3mV.
–
1/2 LT1169
+
R1
1M
C1
3pF TO 5pF
PD
1
PD
2
I
1
I
2
V
OUT
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LT1169CS8#PBF | 功能描述:IC OPAMP JFET LONOISE DUAL 8SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:2,500 系列:- 放大器類型:通用 電路數:4 輸出類型:- 轉換速率: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） 供應商設備封裝:14-TSSOP 包裝:帶卷 (TR) 其它名稱:LM324ADTBR2G-NDLM324ADTBR2GOSTR |
| LT1169CS8#TR | 功能描述:IC OPAMP JFET DUAL LONOISE 8SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:73 系列:Over-The-Top® 放大器類型:通用 電路數:4 輸出類型:滿擺幅 轉換速率: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 供應商設備封裝:16-DFN-EP（5x3） 包裝:管件 |
| LT1169CS8#TRPBF | 功能描述:IC OPAMP JFET LONOISE DUAL 8SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:2,500 系列:- 放大器類型:通用 電路數:1 輸出類型:滿擺幅 轉換速率:0.11 V/µs 增益帶寬積:350kHz -3db帶寬:- 電流 - 輸入偏壓:4nA 電壓 - 輸入偏移:20µV 電流 - 電源:260µA 電流 - 輸出 / 通道:20mA 電壓 - 電源，單路/雙路(±):2.7 V ~ 36 V，±1.35 V ~ 18 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:8-SO 包裝:帶卷 (TR) |
| LT117 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Positive Adjustable Regulator |
| LT1170 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:100kHz, 5A, 2.5A and 1.25A High Efficiency Switching Regulators |
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