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参数资料
| 型号： | LT1259IS#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 10/12页 |
| 文件大小： | 0K |
| 描述： | IC AMP DUAL CURR FDBK SD 14SOIC |
| 标准包装： | 2,500 |
| 放大器类型： | 电流反馈 |
| 电路数： | 2 |
| 转换速率： | 1600 V/µs |
| -3db带宽： | 130MHz |
| 电流 - 输入偏压： | 20µA |
| 电压 - 输入偏移： | 2000µV |
| 电流 - 电源： | 5mA |
| 电流 - 输出 / 通道： | 60mA |
| 电压 - 电源，单路/双路(±)： | 4 V ~ 30 V，±2 V ~ 15 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 14-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 14-SO |
| 包装： | 带卷 (TR) |
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
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT125M | 制造商:Thomas & Betts 功能描述:STR METALLIC CONNECTOR 制造商:Thomas & Betts 功能描述:Fittings Connector 1.25inch Female/Male Steel |
| LT125P | 制造商:Thomas & Betts 功能描述:Fitting, Conduit; 1.257 in.; Nylon; Black; UL 94V2; 2.164 in. 制造商:Thomas & Betts 功能描述:ELECTRICAL CONDUIT FITTING 制造商:Thomas & Betts 功能描述:CONDUIT FITTING, STR, THERMOPLASTIC, BLK 制造商:Thomas & Betts 功能描述:CONDUIT FITTING, STR, THERMOPLASTIC, BLK, 31.75MM; Accessory Type:Straight Bullet Connector; Body Material:Thermoplastic; Color:Black; External Diameter:63.35mm; For Use With:Liquidtight Non-metallic XTRA FLEX Type B Conduit & Tubing;RoHS Compliant: Yes 制造商:Thomas & Betts 功能描述:Cable Accessories Fitting |
| LT1260 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Low Cost Dual and Triple 130MHz Current Feedback Amplifiers with Shutdown |
| LT1260CN | 功能描述:IC AMP W/SHUTDOWN TRIPLE 16-DIP RoHS:否 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 其它有关文件:Automotive Product Guide 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- 放大器类型:通用 电路数:1 输出类型:满摆幅 转换速率:3 V/µs 增益带宽积:10MHz -3db带宽:- 电流 - 输入偏压:1pA 电压 - 输入偏移:70µV 电流 - 电源:2.5mA 电流 - 输出 / 通道:48mA 电压 - 电源，单路/双路(±):2.7 V ~ 5.5 V，±1.35 V ~ 2.75 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-6 包装:Digi-Reel® 其它名称:MAX4475AUT#TG16DKR |
| LT1260CN#PBF | 功能描述:IC AMP W/SHUTDOWN TRIPLE 16-DIP RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:1 系列:MicroAmplifier™ 放大器类型:通用 电路数:4 输出类型:- 转换速率:3.5 V/µs 增益带宽积:1MHz -3db带宽:- 电流 - 输入偏压:5pA 电压 - 输入偏移:1500µV 电流 - 电源:220µA 电流 - 输出 / 通道:60mA 电压 - 电源，单路/双路(±):4.5 V ~ 36 V，±2.25 V ~ 18 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-SOIC（0.154"，3.90mm 宽） 供应商设备封装:14-SOIC 包装:剪切带 (CT) 其它名称:296-29363-1 |
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