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參數(shù)資料
| 型號： | LT6210IS6#TR |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 4/18頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP CFA PROG 3V R-R/O SOT23-6 |
| 標準包裝： | 2,500 |
| 放大器類型： | 電流反饋 |
| 電路數(shù)： | 1 |
| 輸出類型： | 滿擺幅 |
| 轉換速率： | 700 V/µs |
| -3db帶寬： | 200MHz |
| 電流 - 輸入偏壓： | 13.5µA |
| 電壓 - 輸入偏移： | 1000µV |
| 電流 - 電源： | 6mA |
| 電流 - 輸出 / 通道： | 75mA |
| 電壓 - 電源，單路/雙路(±)： | 3 V ~ 12 V，±1.5 V ~ 6 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | SOT-23-6 |
| 供應商設備封裝： | TSOT-23-6 |
| 包裝： | 帶卷 (TR) |
LT6210/LT6211
12
62101fc
applicaTions inForMaTion
Setting the Quiescent Operating Current (ISET Pin)
The quiescent bias point of the LT6210/LT6211 is SET
with either an external resistor from the ISET pin to a
lower potential or by drawing a current out of the ISET
pin. However, the ISET pin is not designed to function as a
shutdown. The LT6211 uses two entirely independent bias
networks, so while each channel can be programmed for
a different supply current, neither ISET pin should be left
unconnected. A simplified schematic of the internal bias-
ing structure can be seen in Figure 1. Figure 2 illustrates
the results of varying RSET on 3V and ±5V supplies. Note
that shorting the ISET pin under 3V operation results in
a quiescent bias of approximately 6mA. Attempting to
bias the LT6210/LT6211 at a current level higher than
6mA by using a smaller resistor may result in instability
and decreased performance. However, internal circuitry
clamps the supply current of the part at a safe level of
approximately 15mA in case of accidental connection of
the ISET pin directly to a negative potential.
Input Considerations
The inputs of the LT6210/LT6211 are protected by back-
to-back diodes. If the differential input voltage exceeds
1.4V, the input current should be limited to less than the
absolute maximum ratings of ±10mA. In normal opera-
tion, the differential voltage between the inputs is small,
so the ±1.4V limit is generally not an issue. ESD diodes
protect both inputs, so although the part is not guaranteed
to function outside the common mode range, input volt-
ages that exceed a diode beyond either supply will also
require current limiting to keep the input current below
the absolute maximum of ±10mA.
Feedback Resistor Selection
The small-signal bandwidth of the LT6210/LT6211 is set
by the external feedback resistors and the internal junc-
tion capacitances. As a result, the bandwidth is a function
of the quiescent supply current, the supply voltage, the
value of the feedback resistor, the closed-loop gain and the
load resistor. Refer to the Typical AC Performance table
for more information.
Layout and Passive Components
As with all high speed amplifiers, the LT6210/LT6211
require some attention to board layout. Low ESL/ESR
bypass capacitors should be placed directly at the positive
and negative supply (0.1F ceramics are recommended).
For best transient performance, additional 4.7F tantal-
ums should be added. A ground plane is recommended
and trace lengths should be minimized, especially on the
inverting input lead.
Capacitance on the Inverting Input
Current feedback amplifiers require resistive feedback
from the output to the inverting input for stable operation.
Capacitance on the inverting input will cause peaking in
the frequency response and overshoot in the transient
response. Take care to minimize the stray capacitance at
the inverting input to ground and between the output and
the inverting input. If significant capacitance is unavoid-
able in a given application, an inverting gain configuration
should be considered. When configured inverting, the
amplifier inputs do not slew and the effect of parasitics
is greatly reduced.
Figure 1. Internal Bias Setting Circuitry
Figure 2. Setting RSET to Control IS
6
5
V+
TO
BIAS
CONTROL
600
8k
ISET
6210 F01
10
1
0.1
0.01
0.1
1
10
100
1000
RSET PROGRAMMING RESISTOR (k)
SUPPL
YCURRENT
PER
AMPLIFIER
(mA)
6210 F02
VS = ±5V
RSET TO GND
VS = 3V
RSET TO GND
TA = 25°C
RL = ∞
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LT6211 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Single/Dual Programmable Supply Current |
| LT6211CDD | 功能描述:IC AMP CURR FDBK DUAL R-R 10DFN RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:50 系列:- 放大器類型:通用 電路數(shù):2 輸出類型:滿擺幅 轉換速率:1.8 V/µs 增益帶寬積:6.5MHz -3db帶寬:4.5MHz 電流 - 輸入偏壓:5nA 電壓 - 輸入偏移:100µV 電流 - 電源:65µA 電流 - 輸出 / 通道:35mA 電壓 - 電源，單路/雙路(±):1.8 V ~ 5.25 V，±0.9 V ~ 2.625 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應商設備封裝:10-MSOP 包裝:管件 |
| LT6211CDD#PBF | 功能描述:IC AMP CFA R-R DUAL PROGR 10-DFN RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:50 系列:- 放大器類型:通用 電路數(shù):2 輸出類型:滿擺幅 轉換速率:1.8 V/µs 增益帶寬積:6.5MHz -3db帶寬:4.5MHz 電流 - 輸入偏壓:5nA 電壓 - 輸入偏移:100µV 電流 - 電源:65µA 電流 - 輸出 / 通道:35mA 電壓 - 電源，單路/雙路(±):1.8 V ~ 5.25 V，±0.9 V ~ 2.625 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應商設備封裝:10-MSOP 包裝:管件 |
| LT6211CDD#TR | 功能描述:IC AMP CURR FDBK DUAL R-R 10DFN RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:1 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:滿擺幅 轉換速率:0.6 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:2pA 電壓 - 輸入偏移:1000µV 電流 - 電源:85µA 電流 - 輸出 / 通道:20mA 電壓 - 電源，單路/雙路(±):1.8 V ~ 6 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:14-SOICN 包裝:剪切帶 (CT) 產品目錄頁面:680 (CN2011-ZH PDF) 其它名稱:MCP6L04T-E/SLCT |
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