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參數(shù)資料
| 型號： | LT1225C |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Very High Speed Operational Amplifier |
| 中文描述： | 超高速運算放大器 |
| 文件頁數(shù)： | 7/8頁 |
| 文件大?。?/td> | 246K |
| 代理商： | LT1225C |
7
LT1225
U
S
A
O
PPLICATI
U
U
domain and in the transient response. The photo of the
small-signal response with 1000pF load shows 50% peak-
ing. The large-signal response with a 10,000pF load shows
the output slew rate being limited by the short-circuit
current.
A
V
= –5, C
L
= 1000pF
Lag Compensation
Wein Bridge Oscillator
A
V
= 5, C
L
= 10,000pF
The LT1225 can drive coaxial cable directly, but for best
pulse fidelity the cable should be doubly terminated with
a resistor in series with the output.
Compensation
The LT1225 has a typical gain-bandwidth product of
150MHz which allows it to have wide bandwidth in high
gain configurations (i.e., in a gain of 10 it will have a
bandwidth of about 15MHz). The amplifier is stable in a
noise gain of 5 so the ratio of the output signal to the
inverting input must be 1/5 or less. Straightforward gain
configurations of 5 or –4 are stable, but there are a few
configurations that allow the amplifier to be stable for
lower signal gains (the noise gain, however, remains 5 or
more). One example is the summing amplifier shown in
the typical applications section below. Each input signal
has a gain of –R
F
/R
IN
to the output, but it is easily seen that
this configuration is equivalent to a gain of –4 as far as the
amplifier is concerned. Lag compensation can also be
used to give a low frequency gain less than 5 with a high
frequency gain of 5 or greater. The example below has a
DC gain of one, but an AC gain of 5. The break frequency
of the RC combination across the amplifier inputs should
be approximately a factor of 10 less than the gain band-
width of the amplifier divided by the high frequency gain
(in this case 1/10 of 150MHz/5 or 3MHz).
U
S
A
O
PPLICATI
TYPICAL
Cable Driving
Summing Amplifier
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of circuits as described herein will not infringe on existing patent rights.
LT1225 AI04
LT1225 TA04
R2
250
IN
V
OUT
V
R1
1k
R3
75
R4
75
75 CABLE
LT1225
–
+
–
+
500
LT1225
100pF
V
IN
V
OUT
2k
LT1225 TA03
A
V
= 1, f < 3MHz
–
+
LT1225
100pF
V
>10V
P-P
1MHz
LT1225 TA05
430
100pF
1.5k
1.5k
#327
LAMP
–
+
LT1225
V
IN1
V
OUT
R
F
LT1225 TA06
R
IN
R
IN
R
IN
V
IN2
V
IN
n
R
IN
= nR
F
4
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LT1225CN8 | 功能描述:IC OP-AMP HI-SPEED 150MHZ 8-DIP RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1 系列:- 放大器類型:電流檢測 電路數(shù):1 輸出類型:- 轉換速率:- 增益帶寬積:125kHz -3db帶寬:- 電流 - 輸入偏壓:- 電壓 - 輸入偏移:100µV 電流 - 電源:1.1µA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:4-WFBGA，CSPBGA 供應商設備封裝:4-UCSP（2x2） 包裝:剪切帶 (CT) 其它名稱:MAX9634WERS+TCT |
| LT1225CN8#PBF | 功能描述:IC OP-AMP HI-SPEED 150MHZ 8-DIP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1 系列:- 放大器類型:電流檢測 電路數(shù):1 輸出類型:- 轉換速率:- 增益帶寬積:125kHz -3db帶寬:- 電流 - 輸入偏壓:- 電壓 - 輸入偏移:100µV 電流 - 電源:1.1µA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:4-WFBGA，CSPBGA 供應商設備封裝:4-UCSP（2x2） 包裝:剪切帶 (CT) 其它名稱:MAX9634WERS+TCT |
| LT1225CS8 | 功能描述:IC OP-AMP HI-SPEED 150MHZ 8SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:100 系列:- 放大器類型:通用 電路數(shù):1 輸出類型:- 轉換速率:0.2 V/µs 增益帶寬積:- -3db帶寬:- 電流 - 輸入偏壓:100pA 電壓 - 輸入偏移:30µV 電流 - 電源:380µA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):±2 V ~ 18 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） 供應商設備封裝:8-SO 包裝:管件 |
| LT1225CS8#PBF | 功能描述:IC OP-AMP HI-SPEED 150MHZ 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(shù):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) |
| LT1225CS8#TR | 功能描述:IC OPAMP 150MHZ HI SPEED 8SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:100 系列:- 放大器類型:通用 電路數(shù):1 輸出類型:- 轉換速率:0.2 V/µs 增益帶寬積:- -3db帶寬:- 電流 - 輸入偏壓:100pA 電壓 - 輸入偏移:30µV 電流 - 電源:380µA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):±2 V ~ 18 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） 供應商設備封裝:8-SO 包裝:管件 |
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