TL72 TL72A TL72B LOW NOISE JFET DUAL OPERATIONAL AMPLIFIERS. WIDE COMMONMODE (UP TO VCC + ) AND DIFFERENTIAL VOLTAGE RANGE LOW INPUT BIAS AND OFFSET CURRENT. LOW NOISE e n = nv/ Hz (typ) OUTPUT SHORTCIRCUIT PROTECTION HIGH INPUT IMPEDANCE J FET INPUT STAGE LOW HARMONIC DISTORTION :.% (typ). INTERNAL FREQUENCY COMPENSATION LATCH UP FREE OPERATION HIGH SLEW RATE : 6V/µs (typ) N DIP8 (Plastic Package) D SO8 (Plastic Micropackage) DESCRIPTION The TL72, TL72A and TL72B are high speed J FET input dual operational amplifiers incorporating well matched, high voltage J FET and bipolar transistors in a monolithic integrated circuit. The devices featurehigh slewrates, low input bias and offset current, and low offset voltage temperature coefficient. ORDER CODES Temperature Package Part Number Range N D TL72M/AM/BM o C, + o C TL72I/AI/BI 4 o C, + o C TL72C/AC/BC o C, +7 o C Example : TL72CN PIN CONNECTIONS (top view) 8 2 3 4 + + 7 6 Output 2 Inverting input 3 Noninverting input 4VCC Noninverting input 2 6 Inverting input 2 7 Output 2 8VCC + December 998 /9
TL72 TL72A TL72B SCHEMATIC DIAGRAM Noninverting input Inverting input Ω 2Ω Output 3k Ω /2 TL72 8.2k.3k 3k.3k 3k Ω ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit VCC Supply Voltage (note ) ±8 V Vi Input Voltage (note 3) ± V Vid Differential Input Voltage (note 2) ±3 V Ptot Power Dissipation 68 mw Output Shortcircuit Duration (note 4) Infinite Toper Operating Free Air Temperature Range TL72C,AC,BC TL72I,AI,BI TL72M,AM,BM Notes : to7 4 to to Tstg Storage Temperature Range 6 to. All voltage values, except differential voltage, are with respect to the zero reference level (ground) of the supply voltages where the zero reference level is the midpoint between VCC + and VCC. 2. Differential voltages are at the noninverting input terminal with respect to the inverting input terminal. 3. The magnitude of the input voltage must never exceed the magnitude of the supply voltage or volts, whichever is less. 4. The output may be shorted to ground or to either supply. Temperature and /or supply voltages must be limited to ensure that the dissipation rating is not exceeded. o C o C 2/9
TL72 TL72A TL72B ELECTRICAL CHARACTERISTICS VCC = ±V, Tamb = o C (unless otherwise specified) Symbol Parameter Vio Input Offset Voltage (RS = Ω) Tamb = o C T min. T amb T max. TL72 TL72A TL72B TL72 TL72A TL72B TL72I,M,AC,AI, TL72C AM,BC,BI,BM Min. Typ. Max. Min. Typ. Max. 3 3 6 3 3 7 3 DVio Input Offset Voltage Drift µv/ o C Iio Input Offset Current * Tamb = o C Tmin. Tamb Tmax. I ib Input Bias Current * Tamb = o C Tmin. Tamb Tmax. Large Signal Voltage Gain (R L =2kΩ,V O =±V) T amb = o C T min. T amb T max. A vd SVR I CC Supply Voltage Rejection Ratio (R S =Ω) T amb = o C 8 T min. T amb T max. 8 4 2 2 2 2 86 7 7 Supply Current, per Amp, no Load T amb = o C.4 2. T min. T amb T max. 2. Vicm Input Common Mode Voltage Range ± + CMR Common Mode Rejection Ratio (RS = Ω) Tamb = o C Tmin. Tamb Tmax. Ios Output Shortcircuit Current Tamb = o C Tmin. Tamb Tmax. ±V OPP Output Voltage Swing Tamb = o C RL = 2kΩ RL = kω Tmin. Tamb Tmax. RL = 2kΩ RL = kω 8 8 86 7 7 4 6 6 3. 3 2 2 2 2 86 ± +.4 2. 2. 86 4 6 6 SR Slew Rate (Vin = V, RL =2kΩ, CL = pf, V/µs Tamb = o C, unity gain) 8 6 8 6 t r Rise Time (V in = 2mV, R L =2kΩ,C L = pf, µs T amb = o C, unity gain).. K OV Overshoot (V in = 2mV, R L =2kΩ,C L = pf, % Tamb = o C, unity gain) GBP Gain Bandwidth Product (f = khz, MHz T amb = o C, V in = mv, R L =2kΩ,C L = pf) 2. 4 2. 4 Ri Input Resistance Ω THD Total Harmonic Distortion (f = khz, A V = 2dB, R L =2kΩ,C L = pf, T amb = o C, V O =2V PP ).. % en Equivalent Input Noise Voltage (f = khz, Rs = Ω) 3. m Phase Margin 4 4 Degrees V O /V O2 Channel Separation (A v = ) db * The input bias currents are junction leakage currents which approximately double for every o C increase in the junction temperature. Unit mv pa na pa na V/mV db ma V db ma V nv Hz 3/9
TL72 TL72A TL72B VOLTAGE VERSUS FREQUENCY VOLTAGE VERSUS FREQUENCY MAXIMUM PEAKTOPEAKOUTPUT 3 2 = V = V = V R L = 2kΩ T amb =+ C SeeFigure2 K K K M M MAXIMUMPEAKTOPEAK OUTPUT 3 2 = = V V = V R L = kω T amb =+ C See Figure 2 K K K M M VOLTAGE VERSUS FREQUENCY VOLTAGE VERSUS FREE AIR TEMP. MAXIMUMPEAKTOPEAK OUTPUT 3 2 T amb =+ C T amb = C T amb = + C k 4k k 4k M 4M M = V R L =2kΩ See Figure 2 MAXIMUM PEAKTOPEAKOUTPUT 3 2 = V See Figure 2 7 7 R L = kω R L =2kΩ VOLTAGE VERSUS LOAD RESISTANCE VOLTAGE VERSUS SUPPLY VOLTAGE 3 2 V = V CC T amb =+ C See Figure 2..2.4.7 2 4 7 LOAD RESISTANCE (k Ω) MAXIMUM PEAKTOPEAKOUTPUT 3 2 R L =kω T amb = + C 2 4 6 8 4 6 SUPPLY VOLTAGE ( V) 4/9
TL72 TL72A TL72B INPUT BIAS CURRENT VERSUS FREE AIR TEMPERATURE LARGE SIGNAL DIFFERENTIAL VOLTAGE AMPLIFICATION VERSUS FREE AIR TEMPERATURE INPUT BIAS CURRENT (na) = V.. 7 TEMPERATURE( C) DIFFERENTIAL VOLTAGE AMPLIFICATION (V/V) 4 2 4 2 = V V 4 O = V 2 R =2kΩ L 7 7 LARGE SIGNAL DIFFERENTIAL VOLTAGE AMPLIFICATION AND PHASE SHIFT VERSUS FREQUENCY TOTAL POWER DISSIPATION VERSUS FREE AIR TEMPERATURE DIFFERENTIAL VOLTAGE AMPLIFICATION(V/V) PHASE SHIFT (right scale) R = 2kΩ L C L = pf = V T amb = + C DIFFERENTIAL VOLTAGE AMPLIFICATION (left scale) K K K M M 8 9 TOTAL POWER DISSIPATION (mw) 2 = V 2 7 No signal No load 7 7 7 SUPPLY CURRENT PER AMPLIFIER VERSUS FREE AIR TEMPERATURE COMMON MODE REJECTION RATIO VERSUS FREE AIR TEMPERATURE SUPPLY CURRENT (ma) 2..8 = V.6.4 No signal No load.2..8.6.4.2 7 7 COMMON MODE MODE REJECTION RATIO (db) 89 88 87 86 8 84 83 7 R L =kω = V 7 /9
TL72 TL72A TL72B VOLTAGE FOLLOWER LARGE SIGNAL PULSE RESPONSE OUTPUT VOLTAGE VERSUS ELAPSED TIME INPUT AND OUTPUT VOLTAGES (V) 6 4 2 2 4 6 OUTP UT = V R L =2kΩ C L = pf T amb =+ C.. 2 2. 3 3. TIME (µs) INPUT OUTPUT VOLTAGE (mv) 28 24 2 6 8 4 4 OVERSHOOT 9% V = V CC R % L =2kΩ T t amb = + C r..2.3.4..6.7 TIME ( µs) EQUIVALENT INPUT NOISE VOLTAGE VERSUS FREQUENCY TOTAL HARMONIC DISTORTION VERSUS FREQUENCY 7 EQUIVALENT INPUT NOISE VOLTAGE (nv/vhz) 6 4 3 2 = V A V = R S = Ω T amb = + C 4 4 k 4k k 4k k TOTAL HARMONIC DISTORTION (%).4..4 V = CC = V V A AV V = = VV O(rms) O(rms) =6V =6V T amb T amb = = + C + C..4. 4 k 4k k 4k k 6/9
TL72 TL72A TL72B PARAMETER MEASUREMENT INFORMATION Figure : Voltage Follower Figure 2 : Gainof Inverting Amplifier k Ω /2 TL72 e o e I k Ω /2 TL72 e o e I C L = pf R = 2kΩ L R L C L = pf TYPICAL APPLICATION KHz QUADRUPLE OSCILLATOR N 448 8k Ω * V 8pF 8pF k Ω 88.4k Ω /2 TL72 8pF 6 sin ω t 88.4k Ω /2 TL72 k Ω 6cos ωt 88.4k Ω N 448 8k Ω * +V * These resistor values may be adjusted for a symmetrical output 7/9
TL72 TL72A TL72B PACKAGE MECHANICAL DATA 8 PINS PLASTIC DIP Dimensions Millimeters Inches Min. Typ. Max. Min. Typ. Max. A 3.32.3 a..2 B..6.4.6 b.36..4.22 b.24.34.8. D.92.43 E 7.9 9.7.33.384 e 2.4. e3 7.62.3 e4 7.62.3 F 6.6 26 i.8.2 L 3.8 3.8.. Z.2.6 8/9
TL72 TL72A TL72B PACKAGE MECHANICAL DATA 8 PINS PLASTIC MICROPACKAGE (SO) Dimensions Millimeters Inches Min. Typ. Max. Min. Typ. Max. A.7.69 a...4. a2.6.6 a3.6.8.26.33 b.3.48.4.9 b.9..7. C....2 c 4 o (typ.) D 4.8..89.97 E.8 6.2.228.244 e.27. e3 3.8. F 3.8 4...7 L.4.27.6. M.6.24 S 8 o (max.) Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a trademark of STMicroelectronics 998 STMicroelectronics Printed in Italy All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia Brazil Canada China France Germany Italy Japan Korea Malaysia Malta Mexico Morocco The Netherlands Singapore Spain Sweden Switzerland Taiwan Thailand United Kingdom U.S.A. http://www.st.com 9/9