XR-1458 EXAR | Alldatasheet

Document overview

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Technical content

Dual Operational Amplifier GENERAL DESCRIPTION The XR-1458/4558 is a pair of independent internally compensated operational amplifiers on a single silicon chip, each similar to the popular 741, but with a power consumption less than one 741. Good thermal tracking and matched gain-bandwidth products make these Du­ al Op-amps useful for active filter applications.

FEATURES

Direct Pin-for-Pin Replacement for MC1458, RC4558, N5558 Low Power Consumption - 50 mW typo and 120mW max. Short-Circuit Protection Internal Frequency Compensation No Latch-Up Wide Common-Mode and Differential Voltage Ranges Matched Gain-Bandwidth

APPLICATIONS

SumminglDifferencing Amplifiers Instrumentation Amplifiers Active Filters Signal Processing Sample and Differencing I to V Converters Integrators Simulated Components Analog Computers ABSOLUTE MAXIMUM RATINGS Supply Voltage XR-4558CP Input Voltage (Note 1) Common Mode Voltage Range Output Short-Circuit Duration (Note 2) Differential Input Voltage Internal Power Dissipation (Note 3) ±18V ±15V VEE to VCC indefinite ±30V Plastic Package: 500 mW Storage Temperature Range: - 65°C to + 150°C Operating Temperature Range: O°C to + 70°C Note 1: For supply voltages less than ± 15V, the absolute max- imum input voltage is equal to the supply voltage. Note 2: Short circuit may be to ground or either supply. Rating applies to + 125°C case temperature of + 75°C ambi­ ent temperature for XR1458/4558. Note 3: Rating applies for case temperatures to 125°C; derate linearly at 6.5mW/oC for ambient temperatures above + 75°C for XR1458/4558. 5-25 FUNCTIONAL BLOCK DIAGRAM OUTPUT A Vee -INPUT A OUTPUT B -INPUT A -INPUT !I VEE _INPUT B

ORDERING INFORMATION

Part Number Package Operating Temperature XR-1458CN Ceramic O°C to + 70°C XR-1458CP Plastic O°C to + 70°C XR-4558CN Ceramic O°C to + 70°C XR-4558CP Plastic O°C to + 70°C SYSTEM DESCRIPTION The XR-1458 and XR-4558 are dual general purpose op amps featuring better performance than industry stan­ dard devices such as the 741; bandwidth, slew rate, and input resistance are greatly improved. Internal pro­ tection circuitry includes latch-up elimination, short cir­ cuit current limiting, and internal compensation. The two amplifiers are completely independent, shar­ ing bias circuitry only.

XR·1458/4558

ELECTRICAL CHARACTERISTICS

Test Conditions: TA = + 25°C, ± 15V, unless otherwise specified. XR1458/4558CP PARAMETERS MIN TYP MAX UNITS SYMBOLS CONDITIONS Input Offset Voltage 0.5 6.0 mV IViol Rs :s 10 KO Input Offset Current 5 200 nA Iliol Input Bias Current 40 500 nA IIbl Input Resistance 0.3 5 MO Rin Large Signal Voltage Gain 20 300 V/mV AVOL RL ;?; 2 KO Vout = ± 10V Output Voltage Swing ±12 ±14 V Vout RL ;?; 10 KO ±10 ±13 V Vout RL ;?; 2 KO Input Voltage Range ±12 ±14 V ViCM Common Mode Rejection Ratio 70 90 dB CMRR Rs :s 10 KO Supply Voltage Rejection Ratio 30 150 p.VN PSRR Rs :s 10 KO Power Consumption 50 170 mW Pi Transient Response (unity gain) Yin = 20 mV Risetime 0.13 P.s tr RL == 2 KO Overshoot 5 % to CL :s 100 pF Unity Gain Bandwidth 3.0 MHz BW Slew Rate (unity gain) 1.0 V/p.s dVout/dt RL ;?; 2 KO Channel Separation (open loop) 120 dB f = 10 kHz Rs = 1 KO (Gain of 100) 105 dB f = 10 kHz Rs = 1 KO The following specifications apply for O°C :S TA :S + 70°C for XR4558CP Input Offset Voltage 7.5 mV IViol Rs :S 10 kO Input Offset Current 300 nA lIiol Input Bias Current 800 nA Ib Large-Signal Voltage Gain 15 V/mV AVOL Rs ;?; 2 KO Vout = ± 10V Output Voltage Swing ±10 mV Vout RL 2: 2 KO Power Consumption Vs = ± 15V 90 150 mW Pi TA = High 120 200 mW Pi TA = Low EQUIVALENT SCHEMATIC DIAGRAM 5-26