OUTPUT CURRENT TO 1 A OPERATES AT LOW VOLTAGES SINGLE OR SPLIT SUPPLY LARGE COMMON-MODE AND DIFFERENTIAL MODE RANGE LOW INPUT OFFSET VOLTAGE GROUND COMPATIBLE INPUTS LOW SATURATION VOLTAGE THERMAL SHUTDOWN CLAMP DIODE
POWERDIP (8 + 8)
MINIDIP (Plastic)
DESCRIPTION The L2720, L2722 and L2724 are monolithic integrated circuits in powerdip, minidip and SIP-9 packages, intended for use as power operational amplifiers in a wide range of applications including servo amplifiers and power supplies. They are particularly indicated for driving, inductive loads, as motor and finds applications in compactdisc VCR automotive, etc. The high gain and high output power capability provide superior performance whatever an operational amplifier/power booster combination is required.
SIP9 ORDERING NUMBERS :
L2720 (Powerdip) L2722 (Minidip) L2724 (SIP9)
PIN CONNECTIONS (top views)
L2720
July 2003
L2722
L2724
1/10
L2720/2/4 BLOCK DIAGRAM L2720
L2722
L2724
SCHEMATIC DIAGRAM (one section)
ABSOLUTE MAXIMUM RATINGS Symbol
Value
Unit
VS
Supply Voltage
28
V
VS
Peak Supply Voltage (50ms)
50
V
Vi
Input Voltage
Vs
Vi
Differential Input Voltage
±Vs
Io
DC Output Current
Ip
Peak Output Current (non repetitive)
Ptot
Tstg, Tj 2/10
Parameter
o
o
Power Dissipation at Tamb = 80 C (L2720), Tamb = 50 C (L2722) Tcase = 75oC (L2720) Tcase = 50oC (L2724) Storage and Junction Temperature
1
A
1.5
A
1 5 10
W
–40 to 150
o
C
L2720/2/4 THERMAL DATA SIP-9
Powerdip
Minidip
Rth j-case
Thermal Resistance Junction-case
Max.
10oC/W
15oC/W
70oC/W
Rth j-amb
Thermal Resistance Junction-ambient
Max.
70oC/W
70oC/W
100oC/W
ELECTRICAL CHARACTERISTICS Vs = 24V, Tamb = 25oC unless otherwise specified Symbol
Parameter
Vs
Single Supply Voltage
Vs
Split Supply Voltage
Is Ib
Quiescent Drain Current
Test Conditions
Vs Vo = 2
Min.
Max.
Unit
4
28
V
±2
± 14
Input Offset Voltage
Ios
Input Offset Current
SR
Slew Rate
B
Gain-bandwidth Product
Ri
Input Resistance
Gv
O.L. Voltage Gain
eN
Input Noise Voltage
IN
Input Noise Voltage
Vs = 24V
10
15
Vs = 8V
9
15
0.2
1
µA
10
mV
100
V/µs
1.2
MHz
500 f = 100Hz f = 1kHz
70
kΩ 80 60
dB
10
µV
200
pA
66
84
dB dB
60
70 75 80
B = 22Hz to 22kHz
Common Mode Rejection
f = 1kHz
SVR
Supply Voltage Rejection
f = 100Hz RG = 10kΩ VR = 0.5V
Vs = 24V Vs = ±12V Vs = ±6V
Vs = ±2.5V to ±12V
Ip = 100mA Ip = 500mA
0.7 1
1.5
Vs = ±2.5V to ±12V
Ip = 100mA Ip = 500mA
0.3 0.5
1
f = 1KHz RL = 10Ω Gv = 30dB
Vs = 24V Vs = 6V
60 60
VDROP(LOW) Cs
Channel Separation
Tsd
Thermal Shutdown Junction Temperature
Figure 1 :
nA
2
CMR
VDROP(HIGH)
V mA
Input Bias Current
Vos
Typ.
Quiescent Current vs. Supply Voltage
V V dB o
C
145
FIgure 2 :
Open Loop Gain vs. Frequency
3/10
L2720/2/4 Figure 3 :
Common Mode Rejection vs. Frequency
Figure 4 :
Output Swing vs. Load Current (VS = ± 5 V.
Figure 5 :
Output Swing vs. Load Current (VS = ± 12 V.
Figure 6 :
Supply Voltage rejection vs. Frequency
Figure 7 :
Channel Separation vs. Frequency
4/10
L2720/2/4 APPLICATION SUGGESTION In order to avoid possible instability occuring into final stage the usual suggestions for the linear power stages are useful, as for instance :
-
layout accuracy ; A 100nF capacitor connected between supply pins and ground ;
Figure 8 :
-
boucherot cell (0.1 to 0.2 µF + 1Ω series) between outputs and ground or across the load. With single supply operation, a resistor (1kΩ) between the output and supply pin can be necessary for stability.
Bidirectional DC Motor Control with µP Compatible Inputs
VS1 = logic supply voltage Must be VS2 > VS1 E1, E2 = logic inputs
Figure 9 :
Servocontrol for Compact-disc
Figure 10 : Capstan Motor Control in Video Recorders
Figure 11 : Motor Current Control Circuit
Note :
The input voltage level is compatible with L291 (8 - BIT D/A converter)
5/10
L2720/2/4 Figure 12 : Bidirectional Speed Control of DC Motors 2R3 . R1 For circuit stability ensure that RX >
where RM = internal resistance of motor. RM
The voltage available at the terminals of the motor is VM = 2 (VI −
DESCRIPTION. These circuits consist of four independent, high gain, internally frequency compensated operational amplifiers which were designedspecifically ...
ground. â¡ Differential input voltage range equal to the power supply voltage. â¡ Large output voltage swing 0V to (Vcc - 1.5V). Description. These circuits consist ...
DESCRIPTION. These circuits consist of four independent, high gain, internally frequency compensated operational amplifiers . They operate from a single ...
Input bias currents of a FET-input operational amplifier are normal junction reverse currents, which are ..... IC PREAMPLIFIER RESPONSE CHARACTERISTICS.
gain blocks and all the conventional op amp circuits. ⢠Differential Input Voltage .... also lateral NPN parasitic transistor action on the IC chip. This transistor action ...
Low Power Dual Operational Amplifiers. General Description. The LM158 series consists of two independent, high gain, internally frequency compensated ...
description. The TL322C and the TL322I are dual operational amplifiers similar in performance to the uA741 but with several distinct advantages. They are.
DESCRIPTION. These circuits consist of two independent,high gain, internally frequency compensated which were designed specifically to operate from a single ...
electrical characteristics, VCC± = ±15 V ...... safeguards should be provided by the customer to minimize inherent or procedural hazards. TI assumes no liability ...
The LM146 series of quad op amps consists of four inde- pendent, high ..... Ex: fc = 20 kHz, Ho (gain of the filter) = 1, Q01 = 0.541, Qo2 = 1.306. â¢Since for this ...
SLOS094A â NOVEMBER 1970 â REVISED JANUARY 1992. 1. POST OFFICE ... Products conform to specifications per the terms of Texas Instruments standard ...
-0.3 to 18. V. IO. Output Current for VCC. + ⥠15V. ±30. mA. Iin. Input Current ..... 2.54. 0.100 e3. 7.62. 0.300 e4. 7.62. 0.300. F. 6.6. 0260 i. 5.08. 0.200. L. 3.18.
may be reproduced or utilized in any form or by any means, electronic or mechanical, in- ..... about the nonlinearity of the device should be available in both the fundamental ...... Computer-Aided Design of Integrated Circuits and Systems, Vol.
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)â . µA741C ... electrical characteristics at specified free-air temperature, VCC± = ±15 V (unless otherwise noted) ..... Wireless www.ti.com/wireless. Mail
The ability to swing rail-to-rail and supply +15 mA to the load makes the OP295/OP495 an ideal driver for power transistors and âHâ bridges. This allows designs ...
(4) High-speed test at TJ = 25°C. (5) See âClosed-Loop Output Impedance vs Frequencyâ typical curve. ... sheet, or Appendix C of Burr-Brown IC Data Book. .... ±IQ. OUTPUT VOLTAGE SWING vs OUTPUT CURRENT. 15. 14. 13. 12. 11. 10.
functional characteristics identical to those of the fa- miliar UA741 operational amplifier. ... PIN CONNECTIONS (top view). ORDER CODES. Part Num- ber.
These dual op amps use slew enhancement with special mirror circuitry to achieve ... Applications. VIP⢠is a trademark of National Semiconductor Corporation.
Career in Electronic Instrumentation Engineering in- ... For electrical engineering students in particular, the ... e-Text Main Menu Textbook Table of Contents.
