General description

lm6132 /34 at low voltage power supply or previous power restrictions makes compromise necessary. Only 360 Weian's power current, the gain bandwidth of the equipment of the device of 10 Might supports new portable applications, of which higher power equipment is unacceptable to exhaust the battery life. The driving voltage of LM6132/34 can exceed the power supply rail, which eliminates the range of common modulus voltage. The rail -to -orbit output swing capacity provides the maximum possible dynamic output range. This is especially important when working at low power voltage. LM6132/34 can also drive a large oscillating large capacitor load. LM6132/34 running on a power supply above 2.7 to 24 volts is very suitable for various applications, from bat operating systems with large bandwidth requirements to high -speed instruments.

Features

(For 5V power, unless there is another instructions, it is typical value)

Input CMVR # 8722 ; 0.25V To 5.25V

Rail output amplitude 0. 01V to 4.99V

High -gain bandwidth, 20 kHz at 10 MHz

conversion Speed 12 V/microsecond

Low power current 360 Weian/Apen

Wide power supply range 2.7 volt to 24 volts

Common model suppression ratio 100 [100 100

123] DBS

gain 100dB, RL 10K

PSRR 82 decibel

battery operation instrument

Instrument amplifier

]

Portable scanner

Wireless Communication

Table display driver

Absolute maximum rated value (Note 1) [123 123 [123 ]

ESD公差（注2）2500V

差分输入电压15V

输入/输出引脚电压（V+)+0.3伏（伏-）-0.3伏

[ 123] Power voltage (V+-伏-) 35 volt

Input pin current ± 10 mAh

Output pin current (Note 3) ± 25 mAh

Power pins 50 mAh current

Lead temperature. (Welding, 10 seconds) 260 degrees Celsius

The storage temperature range is -65 ° C ~+150 ° C

Jacking temperature (Note 4) 150 ℉

Work rated (Note 1)

Power supply voltage 1.8V ≤VS≤24V

Concluding temperature range

LM6132, LM6134 40 degrees C≤tj ≤+85 degrees C

Thermal resistance (θja)

N components, 8 -pin molding 115 癨 C/W

M component, 8 -pin surface installation, 193 ° C/W

n packaging, 14 -pin molding 81 # C/w [ 123]

M components, 14 -needle surface installation, 126 ° C/W

5.0V DCT characteristics

Unless otherwise specified, it is guaranteed to guarantee TJ 25 ° C, V+ 5.0V , V- 0V, VCM VO V, all limits+/2 and RL GT; 1 MΩ to vs/2. Black body restrictions are suitable for extreme temperature

5.0V DC electrocomputers (continued)

Unless otherwise regulations, it is guaranteed to guarantee TJ 25 ° C, V+ 5.0V , V- 0V, VCM VO V, all limits+/2 and RL GT; 1 MΩ to vs/2. Black body restrictions are suitable for extreme temperature

5.0V AC electrical characteristics

Unless there are other regulations, it is guaranteed to guarantee TJ 25 ℃, V+ 5.0V, V - 0V, VCM VO V, all limits+/2 and RL GT; 1 MΩ to vs/2. Black body restrictions are suitable for extreme temperature

2.7V DC electrical characteristics

Unless there are other regulations, it is guaranteed to guarantee TJ 25 ° C, V+ 2.7V, V- v, vcm VO V, all limits+/2 and RL GT; 1 MΩ to vs/2. Black body restrictions are suitable for extreme temperature

24 volts of communication electrical characteristics

Unless otherwise specified, it is guaranteed to guarantee TJ 25 ° C, V+ 24 V, and V, V+ 24 V. V- 0 V, all limits of vcm vo v+/2 and RL GT; 1 MΩ to vs/2.

tend to function, but the specific performance cannot be guaranteed. For guarantee specifications and test conditions, see electrical characteristics.

Note 2: Human model, 1.5 kΩ connects 100 PF.

Note 3: Applicable to the operation of single power and division. Under the condition of rising ambient temperature, continuous short -circuit operations may lead to more than a maximum allowed temperature of 150 303C.

Note 4: The maximum power consumption is the functions of TJ (MAX), θJa, and TA. The maximum allowable power consumption at any ambient temperature is pd (TJ (MAX) -TA)/θja. All numbers are suitable for packaging directly welded to the PC board.

Note 5: Typical values represent the most likely parameter model.

Note 6: All limits are guaranteed by testing or statistical analysis.

Unless there are other regulations, typical performance characteristics TA 25 ° C, RL 10 kΩ

Unless otherwise regulations, typical performance characteristics TA 25 ° C, rl 10 kΩ (continued)

Unless there are other regulations, the typical performance characteristics TA 25 ℃, RL 10 kΩ (continued) [123) [123) ]

LM6132/34 Application Tips

LM6132 brings new ease of use to the OPAMP system. The problem of the range of the input voltage greater than the rail is excluded than the consecutive modulus voltage range. The rail -to -orbit output width provides the maximum possible dynamic range at the output end. This is particularly important when working at low power voltage. The high -gain bandwidth of the low power current has opened up the application of battery power supply in new fields, of which high -power consumption, which used to reduce the battery life to an unacceptable level. In order to use these characteristics, some ideas should be remembered. Increasing the rotation rate is different from most bipolar OPAMP that this unique phase reversal input stage prevention/accelerated circuit eliminates phase reversal and allows the function of a very high input signal amplitude. Figure 2 shows how the album -based basis is directly input to the current mirror. LM6132/34 input level conversion input voltage is changed to the current change. The current mirror of the current change driver via Q1 -Q2, Q3 -Q4 when the input level is normal.

LM6132/34 Application Tips (continued)

If the input signal exceeds the input stage conversion rate difference input voltage higher than the diode voltage drop, the excess signal bypass the normal input transistor, (Q1 --Q4), and directly enter the current reflection mirror through two traditional transistors (Q5, Q6) with the correct phase. The re -routing of this excess signal allows the conversion rate to increase by 10 to 1 or more. (See Figure 1.) As the speeding gear increases, OPAMP's response is compared to conventional OPAMP. The large fast pulse will increase the conversion rate to about 25V to 30V/microsecond.

When the higher power supply voltage and the input signal may be large, the gain is reduced. When driving a large capacitor load, this acceleration movement increases the stability of the system. Drive capacitance load capacitance load reduces the phase habits of all computing amplifiers. This is a load capacitor of the output resistance of the amplifier and forming an R-C phase lag network. This can lead to super adjustment, bell and oscillation. Rotation limit can also cause additional delays. The maximum rotation rate of most protein stones will become more and more backward.During the load, even if the input voltage is increased. For LM6132, lagging leads to rotating interest rate hikes. The increase in rotation rate makes the output much lower than input. This effectively reduces phase lag. When the output is caught up with the input, the different input voltage drops, and the amplifier is stabilized quickly

These characteristics allow the LM6132 driver capacitor load No oscillation. The photo above (Figure 3 and Figure 4) shows the LM6132 driver under the 500 PF load. In FIG. 3, the lower record has no CA buffer load, and the higher record channel has 500 PF load. Here we use ± 12 volt power with 20 VP-P pulse.

LM6132/34 Application Tips (continued)

When CF is 39pf, a cell reaction is obtained. In Figure 4, the power supply has been dropped to ± 2.5V, and the pulse is 4VP-P and CF to 39PF. The best value capacitor for compensation shall be established after the circuit board layout is completed, because the value depends on the circuit board's strange capacitors, feedback resistance values, and a closed -loop gain to some extent, as well as power supply voltage. Another common effect of all OPAMP is the displacement caused by feedback resistance and input capacitors. This phase shift also reduces phase margin. When the electric container is placed in the feedback resistance. The circuit shown in Figure 5 is used for these range photos.

FIG. 6 shows the output and reverse input pins between the output and feedback capacitors. The feding capacitor compensation is the magnetic pole introduced by reverse osmosis and carbon monoxide, minimizing the bell in the output waveform, and the feedback resistor RF compensation is introduced by the inverse infiltration. According to the size of the load capacitor, ROI is usually selected between 100Ω and 1 kΩ.

Typical application

3 OPAMP instrument rail pair input and output uses LM6134. One band can perform rail -to -orbit input and rail transition. These characteristics make these instrument amplifiers a single supply system. Some manufacturers use 5 resistors for precision division arrays to divide the co -mode voltage to obtain rail pairs or larger input range. This problem is that it also separates the signal so that a unified gain can be obtained, and the amplifier must run under a high -closed loop gain. This will reduce the input impedance through internal gain factor. Any loss in these precision resistors will reduce CMR. With LM6134, all these problems have been eliminated. In this example, amplifier A and B act as different levels of buffer (Figure 7). These buffers ensure that the input impedance exceeds 100 mΩ, and they eliminate the requirements of the input level for accurate matching resistors. At the same time, they ensure that the differential amplifier is driven by the voltage driver. This is matched by R1-R2 and R3-R4.

Typical application (continued)

The three characteristics of the tablet display

LM6132/34 make it a TFT-LCD application. First of all, its low -current consumption (each amplifier@5V) is the ideal choice of battery power supply in the laptop computer. Second, since the voltage of equipment work has dropped to 2.7 volts, this is the next natural selection of the third -generation TFT panel. In the end, it is not the least important point that the LM6132's large capacity capacity drive is very convenient for the LCD display driver when driving the following features. LM6132/34 aluminum's large capacitor driver capacity reduces its ability to use the Gamma correction buffer. Reference to the input voltage TFT-LCD panel driver of the resistance DAC column (source). This amplifier is also applicable to the reference voltage input capacitor DAC column (source) drive of the reference voltage in the center, such as the LMC750X series. Because for VGA and SVGA displays, the buffer voltage must be solved within a range of about 4 microseconds. The well -known technology is to use a small isolation resistance to connect with the output of AM amplifier to inhibit the output. Its wide power supply voltage range is 2.7 to 24 volts) LM6132/34 can be used for multiple applications. Therefore, the system designer can choose the type of a single device as a sub -circuit service in the system, eliminating multiple devices in the material list. And its part, LM6142 and LM6152 have the same wide power voltage capacity. You can choose the design of the LM6132 in the design to search for multiple sources for the new design.