Low Power Single OP-AMP Semiconductor SN321 Description http:// www.auk.co.kr The SN321 consists of a high gain Internally frequency compensated operational amplifier designed to operate from a single power supply over a wide range of voltage. The input common mode range includes ground and the device is able to operate in single supply applications, even in dual supply applications. it is also can be driven large capacitive loads. The SN321 is available in the SOT-25(SOT23-5) package. SOT-25 Application ORDERING INFORMATION Product Name. Marking Package Name SN321 321□ SOT-25 ◈ Power supplies ◈ Chargers ◈ Desktops ◈ Conventional operational amplifiers ◈ Communications infrastructure Features and Benefits ◈ Input common mode voltage range includes ground ◈ Internally frequency compensated for unity gain ◈ Large DC voltage gain : 100dB 321□ ◈ Wide bandwidth for unity gain : 1 MHz ◈ Very low power consumption ◈ Wide supply voltage range : [ Single : 3V ~ 30V, Dual : ±1.5 ~ ±15V ] [Marking Detail Information] 321 : P/N Marking □ : Year & Week Code KSD-I7F008-001 October, 2010 REV. 01 1 SN321 ◈ Internal Block Diagram 5 : VCC 1 : VIN(+) + 2 : VEE _ 3 : VIN(-) 4 : Output ◈ Pin Description No Symbol I/O Description 1 VIN(+) I 2 VEE GND 3 VIN(-) I OP-Amp’s Inverting Input 4 Output O Output 5 VCC VCC OP-Amp’s Non-inverting Input GND VCC for OP-AMP KSD-I7F008-001 October, 2010 REV. 01 2 SN321 Absolute maximum ratings Characteristic Symbol Ratings Unit Supply voltage VCC 36 or ±18 V Differential input voltage VIND 32 V Input voltage VIN -0.3 ~ +32 V Power Dissipation PD 300 mW Operating temperature Topr -45 ~ +85 °C Storage temperature Tstg -55 ~ 150 °C * Mount on a glass epoxy circuit board of 30x30mm Pad dimension of 50mm2 Electrical Characteristics (Unless otherwise specified. VCC = 5V and –45 °C ≤ Ta ≤ +85 °C) Characteristic Input offset voltage Input offset voltage drift Input offset current Input offset current drift Input bias current Symbol VIOS ΔVIOS/ΔT IIB ±2 ±7 Rg = 0Ω, 0V ≤ VIC ≤ VCC-1.5V - - ±9 Rg = 0Ω - 7 - - ±5 ±50 (Ta=25 °C) - ICC Large signal voltage gain GV VOH VOL - - 10 - - 45 250 - 40 0 - 0 - VCC = 30V, RL = ∞ - 1 500 VCC –1.5 VCC –2 2 VCC = 5V, RL = ∞ - 0.7 1.2 25 100 - 15 - - - mV μV/ °C nA pA/ °C nA V V mA (Ta=25 °C) VCC = 30V RL=2 KΩ 26 - - RL=10 KΩ 27 28 - - 3 20 mV VCC =5V, RL ≤10 KΩ V/mV V CMRR (Ta=25 °C) 65 90 - dB PSRR (Ta=25 °C) 65 100 - dB 20 40 - 10 20 - 10 20 - 5 8 - 12 50 - μA - 40 60 mA IO+ VCC = 15V IO- ISC (Ta=25 °C) VIN+ = 1V, VIN- = 0V (Ta=25 °C) VIN+ = 0V, VIN- = 1V VOUT = 200mV, Ta=25 °C KSD-I7F008-001 October, 2010 REV. 01 Unit VCC = 15V RL ≥ 2 KΩ VIN+ = 0V, VIN- = 1V Output short circuit to ground (Ta=25 °C) VCC = 30V VCC = 15V Output sink current ±150 - (Ta=25 °C) Supply current Output source current (Ta=25 °C) Min. Typ. Max. - ΔIIOS/ΔT VICR Common mode rejection ratio Power supply rejection ratio 5V ≤ VCC ≤ 30V IIOS Input common mode voltage range Output voltage swing Test Condition (Ta=25 °C) mA mA 3 SN321 Electrical Characteristic Curves Fig. 1 ICC-VCC Fig. 2 IIB-VCC Fig. 3 VIOS-Ta Fig. 4 IO-Ta Fig. 5 CMRR-f Fig. 6 VOR-f KSD-I7F008-001 October, 2010 REV. 01 4 SN321 Typical Applications Non-inverting Amplifier Inverting Amplifier R2 R2 R1 R1 _ _ + + RL RL Power Amplifier R1 VS R2 _ + VIN(+) VO R3 RL Fixed Current Sources VS R3 R1 R2 I1 I2 _ + R4 KSD-I7F008-001 October, 2010 REV. 01 5 SN321 Outline Dimension (Unit : mm) ※ Recommend PCB solder land (Unit : mm) KSD-I7F008-001 October, 2010 REV. 01 6 SN321 The AUK Corp. products are intended for the use as components in general electronic equipment (Office and communication equipment, measuring equipment, home appliance, etc.). Please make sure that you consult with us before you use these AUK Corp. products in equipments which require high quality and / or reliability, and in equipments which could have major impact to the welfare of human life(atomic energy control, airplane, spaceship, transportation, combustion control, all types of safety device, etc.). AUK Corp. cannot accept liability to any damage which may occur in case these AUK Corp. products were used in the mentioned equipments without prior consultation with AUK Corp.. Specifications mentioned in this publication are subject to change without notice. KSD-I7F008-001 October, 2010 REV. 01 7