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參數資料
| 型號： | 5962-0051207Q2A |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 運算放大器 |
| 英文描述： | DUAL OP-AMP, 2200 uV OFFSET-MAX, 5.2 MHz BAND WIDTH, CQCC20 |
| 封裝： | CERAMIC, LCC-20 |
| 文件頁數： | 20/70頁 |
| 文件大小： | 1976K |
| 代理商： | 5962-0051207Q2A |
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TLV2460, TLV2461, TLV2462, TLV2463, TLV2464, TLV2465, TLV246xA
FAMILY OF LOW POWER RAILTORAIL INPUT/OUTPUT
OPERATIONAL AMPLIFIERS WITH SHUTDOWN
SLOS220J JULY 1998 REVISED FEBRUARY 2004
27
WWW.TI.COM
APPLICATION INFORMATION
shutdown function
Three members of the TLV246x family (TLV2460/3/5) have a shutdown terminal for conserving battery life in
portable applications. When the shutdown terminal is tied low, the supply current is reduced to 0.3
A/channel,
the amplifier is disabled, and the outputs are placed in a high impedance mode. To enable the amplifier, the
shutdown terminal can either be left floating or pulled high. When the shutdown terminal is left floating, care
should be taken to ensure that parasitic leakage current at the shutdown terminal does not inadvertently place
the operational amplifier into shutdown. The shutdown terminal threshold is always referenced to VDD/2.
Therefore, when operating the device with split supply voltages (e.g.
±2.5 V), the shutdown terminal needs to
be pulled to VDD (not GND) to disable the operational amplifier.
The amplifier’s output with a shutdown pulse is shown in Figures 22, 23, 24, and 25. The amplifier is powered
with a single 5-V supply and configured as a noninverting configuration with a gain of 5. The amplifier turnon
and turnoff times are measured from the 50% point of the shutdown pulse to the 50% point of the output
waveform. The times for the single, dual, and quad are listed in the data tables.
circuit layout considerations
To achieve the levels of high performance of the TLV246x, follow proper printed-circuit board design techniques.
A general set of guidelines is given in the following.
D Ground planes It is highly recommended that a ground plane be used on the board to provide all
components with a low inductive ground connection. However, in the areas of the amplifier inputs and
output, the ground plane can be removed to minimize the stray capacitance.
D Proper power supply decoupling Use a 6.8-F tantalum capacitor in parallel with a 0.1-F ceramic
capacitor on each supply terminal. It may be possible to share the tantalum among several amplifiers
depending on the application, but a 0.1-
F ceramic capacitor should always be used on the supply terminal
of every amplifier. In addition, the 0.1-
F capacitor should be placed as close as possible to the supply
terminal. As this distance increases, the inductance in the connecting trace makes the capacitor less
effective. The designer should strive for distances of less than 0.1 inches between the device power
terminals and the ceramic capacitors.
D Sockets Sockets can be used but are not recommended. The additional lead inductance in the socket pins
will often lead to stability problems. Surface-mount packages soldered directly to the printed-circuit board
is the best implementation.
D Short trace runs/compact part placements Optimum high performance is achieved when stray series
inductance has been minimized. To realize this, the circuit layout should be made as compact as possible,
thereby minimizing the length of all trace runs. Particular attention should be paid to the inverting input of
the amplifier. Its length should be kept as short as possible. This will help to minimize stray capacitance at
the input of the amplifier.
D Surface-mount passive components Using surface-mount passive components is recommended for high
performance amplifier circuits for several reasons. First, because of the extremely low lead inductance of
surface-mount components, the problem with stray series inductance is greatly reduced. Second, the small
size of surface-mount components naturally leads to a more compact layout thereby minimizing both stray
inductance and capacitance. If leaded components are used, it is recommended that the lead lengths be
kept as short as possible.
相關PDF資料 |
PDF描述 |
|---|---|
| 5962-0051207QCA | DUAL OP-AMP, 2200 uV OFFSET-MAX, 5.2 MHz BAND WIDTH, CDIP14 |
| 5962-0051201Q2A | OP-AMP, 2200 uV OFFSET-MAX, 5.2 MHz BAND WIDTH, CQCC20 |
| 5962-0051201QHA | OP-AMP, 2200 uV OFFSET-MAX, 5.2 MHz BAND WIDTH, CDFP10 |
| 5962-0051201QPA | OP-AMP, 2200 uV OFFSET-MAX, 5.2 MHz BAND WIDTH, CDIP8 |
| 5962-0051202Q2A | OP-AMP, 1700 uV OFFSET-MAX, 5.2 MHz BAND WIDTH, CQCC20 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 5962-0051207QCA | 制造商:Texas Instruments 功能描述:OP Amp Dual GP R-R I/O 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| 5962-0051208Q2A | 制造商:Texas Instruments 功能描述:OP Amp Dual GP R-R I/O ±3V/6V 20-Pin LCCC Tube 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| 5962-0051208QCA | 制造商:Texas Instruments 功能描述:OP Amp Dual GP R-R I/O ±3V/6V 14-Pin CDIP Tube 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| 5962-0051301QCA | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述: 制造商:Texas Instruments 功能描述:DUAL 4-INPUT NAND GATE - Rail/Tube |
| 5962-0051401Q2A | 制造商:TI 制造商全稱:Texas Instruments 功能描述:DUAL NON-INVERTING POWER DRIVER |
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