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參數(shù)資料
| 型號(hào)： | LT1722 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Single, Dual, Quad 200MHz Low Noise Precision Op Amps |
| 中文描述： | 單，雙，四200MHz的低噪聲精密運(yùn)算放大器 |
| 文件頁數(shù)： | 13/16頁 |
| 文件大?。?/td> | 326K |
| 代理商： | LT1722 |
LT1722/LT1723/LT1724
13
172234fa
Power dissipation is composed of two parts. The first is
due to the quiescent supply current and the second is due
to on-chip dissipation caused by the load current.
Worst-case instantaneous power dissipation for a given
resistive load in one amplifier occurs at the maximum
supply current and when the output voltage is at half of
either supply voltage (or the maximum swing if less than
half supply voltage).
Therefore P
D(MAX)
in one amplifier is:
P
D(MAX)
= (V
+
– V
–
)(I
S(MAX)
) + (V
+
/2)
2
/R
L
or
P
D(MAX)
= (V
+
– V
–
)(I
S(MAX)
) +
(V
+
– V
O(MAX)
)(V
O(MAX)
/R
L
)
Example. Worst-case conditions are: both op amps in the
LT1723IS8 are at T
A
= 85
°
C, V
S
=
±
5V, R
L
= 150
,
V
OUT
= 2.5V.
P
D(MAX)
= 2 [(10V)(5.95mA) + (2.5V)
2
/150
] = 203mW
T
J(MAX)
= 85
°
C + (203mW)(190
°
C/W) = 124
°
C
which is less than the absolute maximum rating at 150
°
C.
APPLICATIU
W
U
U
Circuit Operation
The
LT1722/LT1723/LT1724
circuit topology is a voltage
feedback amplifier. The operation of the circuit can be
understood by referring to the Simplified Schematic. The
first stage is a folded cascode formed by the transistors
Q1 through Q4. A degeneration resistor, R, is used in the
input stage. The current mirror Q5, Q6 is bootstrapped by
Q7. The capacitor, C, assures the bandwidth and the slew
rate performance. The output stage is formed by comple-
mentary emitter followers, Q8 through Q11. The diodes
D1 and D2 protect against input reversed biasing. The
remaining part of the circuit assures optimum voltage and
current biases for all stages.
Low noise, reduced current supply, high speed and DC
accurate parameters are distinctive features of the
LT1722/
LT1723/LT1724
.
SIW
W
Q2
+IN
Q1
D1
D2
R
–IN
R2
Q6
Q7
Q9
Q10
V
S+
V
S–
OUT
1723 SS
Q11
Q8
Q4
C
V
BIAS
I
3
I
4
I
5
I
2
I
1
R1
Q5
Q3
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LT1723CMS8 | Single, Dual, Quad 200MHz Low Noise Precision Op Amps |
| LT1723CS8 | Single, Dual, Quad 200MHz Low Noise Precision Op Amps |
| LT1723IMS8 | Single, Dual, Quad 200MHz Low Noise Precision Op Amps |
| LT1723IS8 | Single, Dual, Quad 200MHz Low Noise Precision Op Amps |
| LT1724CS | Single, Dual, Quad 200MHz Low Noise Precision Op Amps |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1722CS5 | 制造商:Linear Technology 功能描述:OP Amp Single GP ±6.3V/12.6V 5-Pin TSOT-23 |
| LT1722CS5#PBF | 制造商:Linear Technology 功能描述:OP Amp Single GP 制造商:Linear Technology 功能描述:SC-Amps/Industrial Cut Tape 2 制造商:Linear Technology 功能描述:SC-Amps/Industrial, Cut Tape 200MHz Low Noise Precision OP Amp |
| LT1722CS5#TR | 功能描述:IC OPAMP PREC 200MHZ TSOT-23-5 RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:160 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:10 V/µs 增益帶寬積:9MHz -3db帶寬:- 電流 - 輸入偏壓:1pA 電壓 - 輸入偏移:250µV 電流 - 電源:730µA 電流 - 輸出 / 通道:28mA 電壓 - 電源，單路/雙路(±):2.7 V ~ 5.5 V，±1.35 V ~ 2.75 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC N 包裝:管件 |
| LT1722CS5#TRM | 功能描述:IC OPAMP PREC 200MHZ TSOT-23-5 RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 放大器類型:J-FET 電路數(shù):2 輸出類型:- 轉(zhuǎn)換速率:13 V/µs 增益帶寬積:3MHz -3db帶寬:- 電流 - 輸入偏壓:65pA 電壓 - 輸入偏移:3000µV 電流 - 電源:1.4mA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):7 V ~ 36 V，±3.5 V ~ 18 V 工作溫度:-40°C ~ 85°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 |
| LT1722CS5#TRMPBF | 功能描述:IC OPAMP PREC 200MHZ TSOT-23-5 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(biāo)準(zhǔn)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 |
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