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參數(shù)資料
| 型號(hào)： | LT1260CN |
| 廠商： | Linear Technology |
| 文件頁(yè)數(shù)： | 10/12頁(yè) |
| 文件大小： | 0K |
| 描述： | IC AMP W/SHUTDOWN TRIPLE 16-DIP |
| 標(biāo)準(zhǔn)包裝： | 25 |
| 放大器類型： | 電流反饋 |
| 電路數(shù)： | 3 |
| 轉(zhuǎn)換速率： | 1600 V/µs |
| -3db帶寬： | 130MHz |
| 電流 - 輸入偏壓： | 20µA |
| 電壓 - 輸入偏移： | 2000µV |
| 電流 - 電源： | 5mA |
| 電流 - 輸出 / 通道： | 60mA |
| 電壓 - 電源，單路/雙路(±)： | 4 V ~ 30 V，±2 V ~ 15 V |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 通孔 |
| 封裝/外殼： | 16-DIP（0.300"，7.62mm） |
| 供應(yīng)商設(shè)備封裝： | 16-PDIP |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁(yè)面： | 1318 (CN2011-ZH PDF) |
7
LT1259/LT1260
Feedback Resistor Selection
The small-signal bandwidth of the LT1259/ LT1260 are set
by the external feedback resistors and the internal junction
capacitors. As a result, the bandwidth is a function of the
supply voltage, the value of the feedback resistor, the
closed-loop gain and the load resistor. The LT1259/LT1260
have been optimized for
±5V supply operation and have a
– 3dB bandwidth of 90MHz. See resistor selection guide in
Typical AC Performance table.
Capacitance on the Inverting Input
Current feedback amplifiers require resistive feedback
from the output to the inverting input for stable operation.
Take care to minimize the stray capacitance between the
output and the inverting input. Capacitance on the invert-
ing input to ground will cause peaking in the frequency
response (and overshoot in the transient response). See
the section on Demo Board Information.
Capacitive Loads
The LT1259/LT1260 can drive capacitive loads directly
when the proper value of feedback resistor is used. The
graph of Maximum Capacitive Load vs Feedback Resistor
should be used to select the appropriate value. The value
shown is for
≤5dB peaking when driving a 150 load at a
gain of 2. This is a worst case condition. The amplifier is
more stable at higher gains. Alternatively, a small resistor
(10
to 20) can be put in series with the output to isolate
the capacitive load from the amplifier output. This has the
advantage that the amplifier bandwidth is only reduced
when the capacitive load is present. The disadvantage is
that the gain is a function of the load resistance.
Power Supplies
The LT1259/LT1260 will operate from single or split
supplies from
±2V (4V total) to ±15V (30V total). It is not
necessary to use equal value split supplies, however the
offset voltage and inverting input bias current will change.
The offset voltage changes about 500
V per volt of
supply mismatch. The inverting bias current can change
as much as 5
A per volt of supply mismatch though
typically, the change is about 0.1
A per volt.
Slew Rate
The slew rate of a current feedback amplifier is not
independent of the amplifier gain configuration the way
slew rate is in a traditional op amp. This is because both the
input stage and the output stage have slew rate limitations.
In the inverting mode, and for higher gains in the nonin-
verting mode, the signal amplitude between the input pins
is small and the overall slew rate is that of the output stage.
For gains less than ten in the noninverting mode, the
overall slew rate is limited by the input stage.
EN
+IN
–IN
OUT
V+
V–
LT1259/60 SS
, each amplifier
SI PLIFIED SCHE ATIC
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APPLICATIO S I FOR ATIO
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| LT1260CN#PBF | 功能描述:IC AMP W/SHUTDOWN TRIPLE 16-DIP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:1 系列:MicroAmplifier™ 放大器類型:通用 電路數(shù):4 輸出類型:- 轉(zhuǎn)換速率:3.5 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:5pA 電壓 - 輸入偏移:1500µV 電流 - 電源:220µA 電流 - 輸出 / 通道:60mA 電壓 - 電源，單路/雙路(±):4.5 V ~ 36 V，±2.25 V ~ 18 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:14-SOIC 包裝:剪切帶 (CT) 其它名稱:296-29363-1 |
| LT1260CS | 制造商:Linear Technology 功能描述:OP Amp Triple Current Fdbk ±15V/30V 16-Pin SOIC N |
| LT1260CS#PBF | 功能描述:IC AMP W/SHUTDOWN TRIPLE 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:- 放大器類型:通用 電路數(shù):4 輸出類型:- 轉(zhuǎn)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(yīng)商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR) 其它名稱:LM324ADTBR2G-NDLM324ADTBR2GOSTR |
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