参数资料
| 型号： | LT1206CR |
| 厂商： | Linear Technology |
| 文件页数： | 18/18页 |
| 文件大小： | 0K |
| 描述： | IC CURRNT FEEDBCK AMP 250MA 7-DD |
| 标准包装： | 50 |
| 放大器类型： | 电流反馈 |
| 电路数： | 1 |
| 转换速率： | 900 V/µs |
| -3db带宽： | 60MHz |
| 电流 - 输入偏压： | 10µA |
| 电压 - 输入偏移： | 3000µV |
| 电流 - 电源： | 20mA |
| 电流 - 输出 / 通道： | 1.2A |
| 电压 - 电源，单路/双路(±)： | 10 V ~ 30 V，±5 V ~ 15 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-263-8，D²Pak（7 引线+接片），TO-263CA |
| 供应商设备封装： | DDPAK-7 |
| 包装： | 管件 |
LT1206
9
1206fb
applicaTions inForMaTion
is flat to 0.35dB to 30MHz. The network has the greatest
effect for CL in the range of 0pF to 1000pF. The graph of
Maximum Capacitive Load vs Feedback Resistor can be
used to select the appropriate value of feedback resistor.
The values shown are for 0.5dB and 5dB peaking at a gain
of 2 with no resistive load. This is a worst case condition,
as the amplifier is more stable at higher gains and with
some resistive load in parallel with the capacitance. Also
shownisthe–3dBbandwidthwiththesuggestedfeedback
resistor vs the load capacitance.
Although the optional compensation works well with ca-
pacitive loads, it simply reduces the bandwidth when it is
connected with resistive loads. For instance, with a 30Ω
load, the bandwidth drops from 55MHz to 35MHz when
the compensation is connected. Hence, the compensation
was made optional. To disconnect the optional compensa-
tion, leave the COMP pin open.
Shutdown/Current Set
If the shutdown feature is not used, the SHUTDOWN pin
must be connected to ground or V–.
The shutdown pin can be used to either turn off the bias-
ing for the amplifier, reducing the quiescent current to
less than 200A, or to control the quiescent current in
normal operation.
ThetotalbiascurrentintheLT1206iscontrolledbythecur-
rent flowing out of the shutdown pin. When the shutdown
pin is open or driven to the positive supply, the part is shut
down. In the shutdown mode, the output looks like a 40pF
capacitor and the supply current is typically 100A. The
shutdown pin is referenced to the positive supply through
an internal bias circuit (see the simplified schematic). An
easy way to force shutdown is to use open drain (collec-
tor) logic. The circuit shown in Figure 2 uses a 74C904
buffer to interface between 5V logic and the LT1206. The
switching time between the active and shutdown states
is less than 1s. A 24k pull-up resistor speeds up the
turn-off time and insures that the LT1206 is completely
turned off. Because the pin is referenced to the positive
supply, the logic used should have a breakdown voltage
of greater than the positive supply voltage. No other
circuitry is necessary as the internal circuit limits the
shutdown pin current to about 500A. Figure 3 shows
the resulting waveforms.
Figure 1
Figure 2. Shutdown Interface
Figure 3. Shutdown Operation
FREQUENCY (MHz)
1
–8
VOLTAGE
GAIN
(dB)
–4
0
4
8
10
100
1206 F01
–6
–2
2
6
10
12
VS = ±15V
RF = 1.2k
COMPENSATION
RF = 2k
NO COMPENSATION
RF = 2k
COMPENSATION
–
+
LT1206
S/D
15V
–15V
RF
RG
VIN
5V
24k
ENABLE
VOUT
1206 F02
15V
74C906
VOUT
ENABLE
AV = 1
RF = 825
RL = 50
RPU = 24k
VIN = 1VP-P
1s/DIV
1206 F03
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1206CR#PBF | 功能描述:IC CURRNT FEEDBCK AMP 250MA 7-DD RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:2,500 系列:- 放大器类型:通用 电路数:4 输出类型:- 转换速率:0.6 V/µs 增益带宽积:1MHz -3db带宽:- 电流 - 输入偏压:45nA 电压 - 输入偏移:2000µV 电流 - 电源:1.4mA 电流 - 输出 / 通道:40mA 电压 - 电源，单路/双路(±):3 V ~ 32 V，±1.5 V ~ 16 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:14-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:14-TSSOP 包装:带卷 (TR) 其它名称:LM324ADTBR2G-NDLM324ADTBR2GOSTR |
| LT1206CR#TR | 功能描述:IC AMP CURR FEEDBACK 250MA 7DD RoHS:否 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:50 系列:- 放大器类型:J-FET 电路数:2 输出类型:- 转换速率:13 V/µs 增益带宽积:3MHz -3db带宽:- 电流 - 输入偏压:65pA 电压 - 输入偏移:3000µV 电流 - 电源:1.4mA 电流 - 输出 / 通道:- 电压 - 电源，单路/双路(±):7 V ~ 36 V，±3.5 V ~ 18 V 工作温度:-40°C ~ 85°C 安装类型:通孔 封装/外壳:8-DIP（0.300"，7.62mm） 供应商设备封装:8-PDIP 包装:管件 |
| LT1206CR#TRPBF | 功能描述:IC CURRNT FEEDBCK AMP 250MA 7-DD RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:50 系列:- 放大器类型:J-FET 电路数:2 输出类型:- 转换速率:13 V/µs 增益带宽积:3MHz -3db带宽:- 电流 - 输入偏压:65pA 电压 - 输入偏移:3000µV 电流 - 电源:1.4mA 电流 - 输出 / 通道:- 电压 - 电源，单路/双路(±):7 V ~ 36 V，±3.5 V ~ 18 V 工作温度:-40°C ~ 85°C 安装类型:通孔 封装/外壳:8-DIP（0.300"，7.62mm） 供应商设备封装:8-PDIP 包装:管件 |
| LT1206CRPBF | 制造商:Linear Technology 功能描述:Op Amp Current Feedback +/-15V DDPAK8 |
| LT1206CS8 | 功能描述:IC CURRNT FEEDBK AMP 250MA 8SOIC RoHS:否 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:73 系列:Over-The-Top® 放大器类型:通用 电路数:4 输出类型:满摆幅 转换速率:0.07 V/µs 增益带宽积:200kHz -3db带宽:- 电流 - 输入偏压:1nA 电压 - 输入偏移:285µV 电流 - 电源:50µA 电流 - 输出 / 通道:25mA 电压 - 电源，单路/双路(±):2 V ~ 44 V，±1 V ~ 22 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:16-WFDFN 裸露焊盘 供应商设备封装:16-DFN-EP（5x3） 包装:管件 |
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