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UA748
PRECISION SINGLE OPERATIONAL AMPLIFIER
. . . . . . . .
INPUT OFFSET VOLTAGE : 3mV max. OVER TEMPERATURE FREQUENCY COMPENSATION WITH A SINGLE 30pF CAPACITOR (C1) OPERATION FROM 5V to 15V LOW POWER CONSUMPTION : 50mW AT 15V CONTINUOUS SHORT-CIRCUIT PROTECTION OPERATION AS A COMPARATOR WITH DIFFERENTIAL INPUTS AS HIGH AS 30V NO LATCH-UP WHEN COMMON-MODE RANGE IS EXCEEDED SAME PIN CONFIGURATION AS THE LM101A
N DIP8 (Plastic Package)
D SO8 (Plastic Micropackage)
ORDER CODES
Part Number UA748C UA748I UA748M Temperature Range 0 C, +70 C -40oC, +105oC -55oC, +125oC
o o
Package N * * * D * * *
Example : UA748CN
DESCRIPTION The UA748 is a general purpose operational amplifier built on a single silicon chip. The resulting close match and tight thermal coupling gives low offsets and temperature drift as well as fast recovery from thermal transients. Short-circuit protection Offset voltage null capability Large common-mode and differential voltage ranges Low power consumption No latch-up The unity-gain compensation specified makes the circuit stable for all feedback configurations, even with capacitive loads. However, it is possible to optimize compensation for best high frequency performance at any gain. The low power dissipation permits high voltage operation and simplifies packaging in full-temperature range systems. PIN CONNECTIONS (top view)
. . . . .
1 2 3 4
8 7 6 5
1 - Offset null 1 / frequency compensation 2 - Inverting input 3 - Non-inverting input 4 - VCC-
5 6 7 8
- Offset null 2 - Output - VCC+ - Frequency compensation
December 1997
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UA748
SCHEMATIC DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Symbol Vcc Vid Vi Ptot Toper Tstg Supply Voltage Differential Input Voltage Input Voltage Power Dissipation Output Short-circuit Duration Operating Free Air Temperature Range Storage Temperature Range -55 to +125 -65 to +150 Parameter UA748M UA748I 22 30 15 500 Infinite -40 to +105 -65 to +150 0 to +70 -65 to +150
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UA748C
Unit V V V mW C C
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UA748
ELECTRICAL CHARACTERISTICS 5V VCC 20V, C1 = 30pF, Tamb = +25oC (unless otherwise specified)
Symbol Vio Parameter Input Offset Voltage (RS 10k) o Tamb = +25 C Tmin. Tamb Tmax. Input Offset Current Tamb = +25oC Tmin. Tamb Tmax. Input Bias Current Tamb = +25oC Tmin. Tamb Tmax. Large Signal Voltage Gain * (VCC = 15V, VO 10V, R L = 2k) o Tamb = +25 C Tmin. Tamb Tmax. Supply Voltage Rejection Ratio (RS 10k) Tamb = +25oC Tmin. Tamb Tmax. Supply Current, no load Tamb = +25oC Tmin. Tamb Tmax. Input Common Mode Voltage Range (VCC = 20V) Tamb = +25oC Tmin. Tamb Tmax. Common-mode Rejection Ratio (R S 10k) o Tamb = +25 C Tmin. Tamb Tmax. Output Short-circuit Current (V CC = 15V) Output Voltage Swing (VCC = 15V) o RL = 10k Tamb = +25 C R L = 2k RL = 10k Tmin. Tamb Tmax. R L = 2k Slew Rate (Vi = 10V, R L =2k, CL= 100pF, unity gain) Rise Time (Vi = 20mV, RL = 2k, CL = 100pF, unity gain) Overshoot (Vi = 20mV, R L = 2k, CL = 100pF, unity gain) Input Impedance (VCC = 15V) Output Resistance (VCC = 15V) Gain Bandwidth Product (Vi = 10mV, RL = 2k, CL= 100pF, f = 100kHz) Total Harmonic Distortion (f = 1kHz, AV = 20dB, RL =2k, VO = 2VPP,CL = 100pF) Input Offset Current Drift o 25 C Tamb Tmax. Tmin. Tamb Tmax. Input Offset Voltage Drift Tmin. Tamb Tmax. 0.5 1.5 15 15 UA748I/M Min. Typ. 0.2 Max. 2 3 75 10 10 20 Min. UA748C Typ. 2 Max. 7.5 10 nA 25 70 250 300 nA 1.5 2 50 70 V/mV 50 25 80 80 100 25 15 70 70 3 3 15 15 10 dB 96 96 mA 1.8 1.8 3 3 V Unit mV
Iio
Iib
Avd
SVR
ICC
Vicm
CMR
dB 80 80 10 12 10 12 10 0.25 96 30 14 13 50 70 70 10 12 10 12 10 0.25 96 30 14 13 50 mA V
IOS VOPP
SR tr KOV ZI Ro GBP THD
V/s 0.5 0.3 5 4 75 1 0.015 0.5 1.5 0.5 0.3 5 4 75 1 % 0.015 pA/ C 10 20 3 100 200 15 10 20 6 300 600 30 V/ C
o o
s % M MHz
DV io
DIio
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UA748
PACKAGE MECHANICAL DATA 8 PINS - PLASTIC DIP
Dim. A a1 B b b1 D E e e3 e4 F i L Z
Millimeters Min. 0.51 1.15 0.356 0.204 7.95 2.54 7.62 7.62 6.6 5.08 3.18 3.81 1.52 0.125 1.65 0.55 0.304 10.92 9.75 0.313 Typ. 3.32 0.020 0.045 0.014 0.008 Max. Min.
Inches Typ. 0.131 0.065 0.022 0.012 0.430 0.384 0.100 0.300 0.300 0260 0.200 0.150 0.060 Max.
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UA748
PACKAGE MECHANICAL DATA 8 PINS - PLASTIC MICROPACKAGE (SO)
Dim. A a1 a2 a3 b b1 C c1 D E e e3 F L M S
Min. 0.1 0.65 0.35 0.19 0.25 4.8 5.8
Millimeters Typ.
Max. 1.75 0.25 1.65 0.85 0.48 0.25 0.5 45 (typ.) 5.0 6.2
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Min. 0.004 0.026 0.014 0.007 0.010 0.189 0.228
Inches Typ.
Max. 0.069 0.010 0.065 0.033 0.019 0.010 0.020 0.197 0.244
1.27 3.81 3.8 0.4 4.0 1.27 0.6 8 (max.)
o
0.050 0.150 0.150 0.016 0.157 0.050 0.024
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics 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 SGS-THOMSON Microelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of SGS-THOMSON Microelectronics. (c) 1997 SGS-THOMSON Microelectronics - Printed in Italy - All Rights Reserved SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - France - Germany - Italy - Japan - Korea - Malaysia - Malta - Morocco The Netherlands - Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A.
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