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參數(shù)資料
| 型號(hào)： | LT1209 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Dual and Quad 45MHz, 400V/us Op Amps |
| 中文描述： | 雙核和四45MHz，400V/us運(yùn)算放大器 |
| 文件頁數(shù)： | 8/12頁 |
| 文件大?。?/td> | 301K |
| 代理商： | LT1209 |
LT1208/LT1209
8
U
S
A
O
PPLICATI
U
U
Low Voltage Operation
The LT1208/LT1209 are functional at room temperature
with only 3V of total supply voltage. Under this condition,
however, the undistorted output swing is only 0.8V
P-P
. A
more realistic condition is operation at
±
2.5V supplies (or
5V and ground). Under these conditions, at room tem-
perature, the typical input common-mode range is 1.9V to
–1.3V (for a V
OS
change of 1mV), and a 5MHz, 2V
P-P
sine
wave can be faithfully reproduced. With 5V total supply
voltage the gain-bandwidth is reduced to 26MHz and the
slew rate is reduced to 135V/
μ
s.
Power Dissipation
The LT1208/LT1209 combine high speed and large output
current drive in small packages. Because of the wide
supply voltage range, it is possible to exceed the maxi-
mum junction temperature under certain conditions.
Maximum junction temperature (T
J
) is calculated from the
ambient temperature (T
A
) and power dissipation (P
D
) as
follows:
LT1208CN8: T
J
= T
A
+ (P
D
×
100
°
C/W)
LT1208CS8:
T
J
= T
A
+ (P
D
×
150
°
C/W)
LT1209CN:
T
J
= T
A
+ (P
D
×
70
°
C/W)
LT1209CS:
T
J
= T
A
+ (P
D
×
100
°
C/W)
Maximum power dissipation occurs at the maximum
supply current and when the output voltage is at 1/2 of
either supply voltage (or the maximum swing if less than
1/2 supply voltage).
For each amplifier P
DMAX
is as follows:
P
DMAX
= (V
+
– V
–
)(I
SMAX
) +(0.5V
+
)
2
Example: LT1208 in S8 at 70
°
C, V
S
=
±
10V, R
L
= 500
DAC Current-to-Voltage Converter
The wide bandwidth, high slew rate and fast settling time
of the LT1208/LT1209 make them well-suited for current-
to-voltage conversion after current output D/A converters.
A typical application with a DAC-08 type converter (full-
scale output of 2mA) uses a 5k feedback resistor. A 7pF
compensation capacitor across the feedback resistor is
used to null the pole at the inverting input caused by the
DAC output capacitance. The combination of the LT1208/
LT1209 and DAC settles to less than 40mV (1LSB) in
140ns for a 10V step.
Large-Signal Transient Response
A
V
= 1
1208/09 AI04
A
V
= –1
1208/09 AI06
Large-Signal Transient Response
R
L
P
DMAX
= (20V)(10.5mA) + = 260mW
(5V)
2
500
T
J
= 70°C + (2
×
260mW)(150°C/W) = 148°C
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LT1209CN | Dual and Quad 45MHz, 400V/us Op Amps |
| LT1209CS | Dual and Quad 45MHz, 400V/us Op Amps |
| LT1211I | 14MHz, 7V/us, Single Supply Dual and Quad Precision Op Amps |
| LT1211IN8 | 14MHz, 7V/us, Single Supply Dual and Quad Precision Op Amps |
| LT1211IS8 | 14MHz, 7V/us, Single Supply Dual and Quad Precision Op Amps |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1209C | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual and Quad 45MHz, 400V/us Op Amps |
| LT1209CN | 功能描述:IC OPAMP QUAD 45MHZ H-S 14-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:Excalibur™ 放大器類型:J-FET 電路數(shù):1 輸出類型:- 轉(zhuǎn)換速率:45 V/µs 增益帶寬積:10MHz -3db帶寬:- 電流 - 輸入偏壓:20pA 電壓 - 輸入偏移:490µV 電流 - 電源:1.7mA 電流 - 輸出 / 通道:48mA 電壓 - 電源，單路/雙路(±):4.5 V ~ 38 V，±2.25 V ~ 19 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(yīng)商設(shè)備封裝:8-SOIC 包裝:帶卷 (TR) |
| LT1209CN#PBF | 功能描述:IC OPAMP QUAD 45MHZ H-S 14-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:Excalibur™ 放大器類型:J-FET 電路數(shù):1 輸出類型:- 轉(zhuǎn)換速率:45 V/µs 增益帶寬積:10MHz -3db帶寬:- 電流 - 輸入偏壓:20pA 電壓 - 輸入偏移:490µV 電流 - 電源:1.7mA 電流 - 輸出 / 通道:48mA 電壓 - 電源，單路/雙路(±):4.5 V ~ 38 V，±2.25 V ~ 19 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(yīng)商設(shè)備封裝:8-SOIC 包裝:帶卷 (TR) |
| LT1209CS | 功能描述:IC OPAMP QUAD 45MHZ H-S 16-SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:Excalibur™ 放大器類型:J-FET 電路數(shù):1 輸出類型:- 轉(zhuǎn)換速率:45 V/µs 增益帶寬積:10MHz -3db帶寬:- 電流 - 輸入偏壓:20pA 電壓 - 輸入偏移:490µV 電流 - 電源:1.7mA 電流 - 輸出 / 通道:48mA 電壓 - 電源，單路/雙路(±):4.5 V ~ 38 V，±2.25 V ~ 19 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(yīng)商設(shè)備封裝:8-SOIC 包裝:帶卷 (TR) |
| LT1209CS#PBF | 功能描述:IC OPAMP QUAD 45MHZ H-S 16-SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:Excalibur™ 放大器類型:J-FET 電路數(shù):1 輸出類型:- 轉(zhuǎn)換速率:45 V/µs 增益帶寬積:10MHz -3db帶寬:- 電流 - 輸入偏壓:20pA 電壓 - 輸入偏移:490µV 電流 - 電源:1.7mA 電流 - 輸出 / 通道:48mA 電壓 - 電源，單路/雙路(±):4.5 V ~ 38 V，±2.25 V ~ 19 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(yīng)商設(shè)備封裝:8-SOIC 包裝:帶卷 (TR) |
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