UNISONIC TECHNOLOGIES CO., LTD LM321 Preliminary LINEAR INTEGRATED CIRCUIT LOW POWER SINGLE OP AMP DESCRIPTION The UTC LM321’s quiescent current is only 430µA (5V). The UTC LM321 brings performance and economy to low power systems, With a high unity gain frequency and a specified 0.4V/µs slew rate. The input common mode range includes ground and therefore the device is able to operate in single supply applications as well as in dual supply applications. It is also capable of comfortably driving large capacitive loads. FEATURES * Low supply current 430µA * VCC=5V, TA=25°C. Typical values unless specified. * Gain-Bandwidth product 1MHz * Low input bias current 45nA * Wide supply voltage range +3V~+32V * Stable with high capacitive loads ORDERING INFORMATION Ordering Number LM321G- AE5-R Package SOT-23-5 Packing Tape Reel MARKING www.unisonic.com.tw Copyright © 2014 Unisonic Technologies Co., Ltd 1 of 7 QW-R104-007.b LM321 Preliminary PIN CONFIGURATION PIN DESCRIPTION PIN NO. 1 2 3 4 5 PIN NAME +IN V-IN OUTPUT V+ LINEAR INTEGRATED CIRCUIT DESCRIPTION Non-inverting input Ground inverting input Output Power supply BLOCK DIAGRAM 5 V+ +IN 1 + V- 2 - -IN 3 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 OUTPUT 2 of 7 QW-R104-007.b LM321 Preliminary LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATING PARAMETER SYMBOL RATINGS UNIT Supply Voltage (V+ - V−) VCC 32 V Differential Input Voltage VI(DIFF) ±Supply Voltage V Input Voltage VIN -0.3~+32 V Input Current (VIN<−0.3V) (Note 2) 50 mA Output Short Circuit to GND, V+≤15V and Continuous TA=25°C (Note 3) Junction Temperature TJ 150 °C Storage Temperature TSTG -65~+150 °C Notes: 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. 2. This input current will only exist when the voltage at any of the input leads is driven negative. It is due to the collector base junction of the input PNP transistors becoming forward biased and thereby acting as input diode clamps. In addition to this diode action, there is also lateral NPN parasitic transistor action on the IC chip. This transistor action can cause the output voltages of the op amps to go to the V+ voltage level (or to ground for a large overdrive) for the time duration that an input is driven negative. This is not destructive and normal output states will re-establish when the input voltage, which was negative, again returns to a value greater than -0.36V (at 25°C). 3. Short circuits from the output V+ can cause excessive heating and eventual destruction. When considering short circuits to ground the maximum output current is approximately 40mA independent of the magnitude of V+. At values of supply voltage in excess of +15V, continuous short circuits can exceed the power dissipation ratings and cause eventual destruction. OPERATING RATINGS PARAMETER Temperature Range Supply Voltage SYMBOL TA V+ RATINGS -40~85 3~30 UNIT °C V SYMBOL θJA RATINGS 265 UNIT °С/W THERMAL DATA PARAMETER Junction to Ambient UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 7 QW-R104-007.b LM321 Preliminary LINEAR INTEGRATED CIRCUIT ELECTRICAL CHARACTERISTICS (Unless otherwise specified, all limits guaranteed for TA=25˚C, V+=5V, V−=0V, VO=1.4V.) MIN PARAMETER SYMBOL TEST CONDITIONS (Note 1) Input Offset Voltage VOS (Note 3) Input Bias Current (Note 4) IB Input Offset Current IOS V+=30V (Note 5) Input Common-Mode Voltage VCM 0 Range For CMRR>=50dB 25 (V+=15V, RL=2kΩ Large Signal Voltage Gain AV VO=1.4V~11.4V) 15 Power Supply Rejection Ratio PSRR RS≤10kΩ, V+≤5V~30V 65 Common Mode Rejection Ratio CMRR RS≤10kΩ 65 + Output Swing VOL V =5V, RL=10kΩ V+=5V Supply Current, No Load IS V+=30V Output Current Sourcing ISOURCE VID=+1V, V+=15V, VO=2V 20 + 10 VID=-1V, V =15V, VO=2V Output Current Sinking ISINK VID=-1V, V+=15V, VO=0.2V 12 Output Short Circuit to Ground IO V+=15V (Note 6) V+=15V, RL=2kΩ, VIN=0.5~3V, Slew Rate SR CL=100pF, Unity Gain V+=30V, f=100kHz, VIN=10mV, Gain Bandwidth Product GBW RL=2kΩ, CL=100pF Phase Margin φm f=1kHz, AV=20dB, RL=2kΩ, Total Harmonic Distortion THD VO=2VPP, CL=100pF, V+=30V Equivalent Input Noise Voltage en f=1kHz, RS=100Ω, V+=30V TYP MAX (Note 2) (Note 1) 2 7 45 250 5 50 V+ -1.5 100 100 85 5 0.430 0.660 40 20 100 40 20 1.15 2.85 85 UNIT mV nA nA V V/mV V/mV dB dB mV mA mA mA mA µA mA 0.4 V/µs 1 MHz 60 deg 0.015 % 40 nV Hz Notes: 1. All limits are specified by testing or statistical analysis. 2. Typical values represent the most likely parametric norm. 3. VO 1.4V, RS=0Ω with V+ from 5V to 30V; and over the full input common-mode range (0V~V+ -1.5V) at 25°C. 4. The direction of the input current is out of the IC due to the PNP input stage. This current is essentially constant, independent of the state of the output so no loading change exists on the input lines. 5. The input common-mode voltage of either input signal voltage should not be allowed to go negative by more than 0.3V (at 25°C). The upper end of the common-mode voltage range is V+-1.5V at 25°C, but either or both inputs can go to +32V without damage, independent of the magnitude of V+. 6. Short circuits from the output V+ can cause excessive heating and eventual destruction. When considering short circuits to ground the maximum output current is approximately 40mA independent of the magnitude of V+. At values of supply voltage in excess of +15V, continuous short circuits can exceed the power dissipation ratings and cause eventual destruction. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 7 QW-R104-007.b LM321 Preliminary LINEAR INTEGRATED CIRCUIT SIMPLIFIED SCHEMATIC V+ 100µA 4µA 6µA Q5 Q6 CC Q2 INPUTS- Q7 Q3 Q1 Q4 RSC OUTPUT Q13 Q11 Q12 INPUTS+ Q10 Q8 50µA Q9 V- UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 7 QW-R104-007.b LM321 Preliminary LINEAR INTEGRATED CIRCUIT TYPICAL APPLICATION CIRCUIT VO (VOLTS) Non-Inverting DC Gain (0V Input = 0V Output) Power Amplifier LED Driver R1 910k R2 100k +VIN R3 91k 20mA V+ 82 - + NSL 102 VO RL V0=0 VDC for VIN=0 VDC, AV=10 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 6 of 7 QW-R104-007.b LM321 LINEAR INTEGRATED CIRCUIT TYPICAL APPLICATION CIRCUIT(Cont.) Lamp Driver Fixed Current Sources V + 2V - V+ + + 2V - R3 2k R1 2k 0 Preliminary R2 - - + 30mA β≥20 600mA 100 + R4 3k I1 I2 1mA R1 I2 = R2 I1 UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 7 of 7 QW-R104-007.b