DATA SHEET LND358 Dual Operational Amplifiers FEATURES GENERAL DESCRIPTION The LND358 consists of two independent, high gain, internally frequency compensated operational amplifiers. They were designed specifically to operate from a single power supply over a wide range of voltages. Operation from split power supplies is also possible and the low power supply current drain is independent of the magnitude of the power supply voltages. Application areas include transducer amplifiers, DC gain blocks and all the conventional op amp circuits, which now can be more easily implemented in single power supply systems. • • • • • • • The LND358 is available in an 8pin DIP/S0 package. ADVANTAGES PIN CONFIGURATION • OUTPUT A 1 INVERTING INPUT A 2 NON-INVERTING INPUT A 3 GROUND 4 8 A B Wide power supply range: (Single supply: 5V to 30V)(Dual supplies: ± 2.5V to ±15V) Very low supply current drain (700µA) independent of supply voltage. Input common-mode voltage range includes ground Available in 8 pin SO/ Dip package Internally frequency compensated for unity gain Large DC voltage gain(100dB) Wide bandwidth(unity gain)1MHz(temperature compensated) V+ 7 OUTPUT B 6 INVERTING INPUT B 5 NON-INVERTING INPUT B - + + - • • • • • Two internally compensated op amps Eliminates need for dual supplies Allows direct sensing near GND and Vout also goes to GND Compatible with all forms of logic Power drain suitable for battery operation Application areas: transducer amplifiers, dc gain blocks and all the conventional op amp circuits • Linear Dimensions, Inc. • 445 East Ohio Street, Chicago IL 60611 USA • tel 312.321.1810 • fax 312.321.1830 • www.lineardimensions.com • LND358 ELECTRICAL CHARACTERISTICS (at specified free-air temperature, VCC=5V(unless otherwise noted) PARAMETER VIO Input offset voltage VCC=5V to MAX VIC=VICR min, VO=1.4V αVIO Average temperature coefficient of input offset voltage IIO Input offset current VICR Common-mode input voltage range VOL Low-Level output voltage 25°C Full range 2 26 VCC=MAX, RL 10kΩ Full Range 27 ≥ RL ≥10kΩ 50 10 VCC=MAX, RL=2kΩ mV µV/°C 150 -20 UNIT 7 7 25ºC Full range 25°C Full range 25ºC Full range VCC=5V to Max MAX 9 Full range VO=1.4 V TYP 3 25°C Full range VO=1.4V RL ≥ KΩ VOH High-level output voltage MIN Full range αIIO Average temperature coefficient of input offset current IIB Input bias current LM358 TEST CONDITIONS* nA pA/°C -250 -500 0 VCC – 1.5 0 VCC - 2 nA V VCC – 1.5 Full range V 28 5 20 mV 25 AVD Large-Signal differential voltage amplification VCC =15V Vo=1Vto 11V, RL ≥ 2kΩ CMRR Common-mode rejection ratio kSVR Supply voltage rejection ratio (∆Vcc/∆VIO) Vo1/ Vo2 Crosstalk attention 25ºC 100 V/mV Full range 15 VCC=5V to MAX, VIC =VICR min 25ºc 65 80 dB VCC = 5V to MAX 25ºC 65 100 dB f=1kHz to 20 kHz 25ºC 120 dB • Linear Dimensions, Inc. • 445 East Ohio Street, Chicago IL 60611 USA • tel 312.321.1810 • fax 312.321.1830 • www.lineardimensions.com • LND358 ELECTRICAL CHARACTERISTICS (continued) PARAMETER VCC=15V, VID=1V,VO =0 VCC=15V, VID=-1V, Vo=15V 25° Full Range 25° Full Range LM358 MIN TYP MAX -20 -30 -10 10 20 5 VID= -1V,VO= 200mV 25ºC 12 VCC at 5V, GND at –5V, VO=0 25ºC ±40 ±60 VO-2.5V, No load Full Range 0.7 1.2 VCC =MAX, VO=0.5VCC, No load Full Range 1 2 TEST CONDITIONS* Io Output Current IOS Short-circuit output current ICC Supply current (two amplifiers) UNIT mA µA 30 mA mA * All characteristics are measured under open-loop conditions with zero common-mode input voltage unless otherwise specified.MAX VCC for testing purpose is 30V. Full range is 0 ºC to 70ºC SOME TYPICAL APPLICATIONS (V+=5.0 Vdc) * +V IN + 1/2 LND358 +5 V +VO - 1M Vo R2 10K (Volts) R1 GAIN =1+(R2/R1) =101 (as shown) O R not needed due to temperature independent IIN V IN (mV) Non- Inverting DC Gain (0V Output) - +V IN 1/2 LND358 +V REF 1/2 LND358 +V IN + VOLTAGE FOLLOWER VO VO + 10K 10M COMPARATOR WITH HYSTERESIS • Linear Dimensions, Inc. • 445 East Ohio Street, Chicago IL 60611 USA • tel 312.321.1810 • fax 312.321.1830 • www.lineardimensions.com • LND358 0.1 V L IL R1* - 910k 100 R2 1/2 LND358 RL + R1 V+ 100k - R2 1/2 LND358 + VO VO RL 91k +V IN 1K R3 Vo=1V(I )/1A L Increase R1 for IL small VL <= (V+) -(2V) Vo =0 Vdc fo Vin =0 Vdc Av =10 CURRENT MONITOR POWER AMPLIFIER R1 100K 0.001µF - Rf V+ 1/2 LND358 0 VO + 1M ICELL R4 R2 - V+ 1/2 LND358 100K 100K R3 (Cell has 0V Across it) 100K + Vo PHOTO VOLTAIC-CELL AMPLIFIER SQUAREWAVE OSCILLATOR R2 R4 100K 100K R1 - 100K R3 - 1/2 LND358 + 100K 1/2 LND358 + Vo +V 1 +V 2 HIGH INPUT Z, DC DIFFERENTIAL AMPLIFIER • Linear Dimensions, Inc. • 445 East Ohio Street, Chicago IL 60611 USA • tel 312.321.1810 • fax 312.321.1830 • www.lineardimensions.com • LND358 0.05µF R +V* 100K - 1/2 LND358 C 1/2 LND358 + OUTPUT1 + V+/2 51K 51K R/2 50K 51K 100K OUTPUT2 10K * Wide Control Voltage Range :0 Vdc <=Vc <= (2 V + -1.5 Vdc) VOLTAGE CONTROLLED OSCILLATOR • Linear Dimensions, Inc. • 445 East Ohio Street, Chicago IL 60611 USA • tel 312.321.1810 • fax 312.321.1830 • www.lineardimensions.com •