TS321 Low power single operational amplifier Features ■ Large output voltage swing: 0 to 3.5 V min. (VCC = 5 V) ■ Low supply current: 500 µA ■ Low input bias current: 20 nA ■ Low input offset voltage: 2 mV max. ■ Wide power supply range: – Single supply: +3 V to +30 V – Dual supplies: ±1.5 V to ±15 V ■ SO-8 (Plastic micropackage) SOT23-5 (Plastic package) Stable with high capacitive loads Description Pin connections (top view) The TS321 is intended for cost-sensitive applications where space saving is of great importance. This bipolar op-amp offers the benefits of a reduced component size (SOT23-5 package), with specifications that match (or are better than) industry standard devices (like the popular LM358A, LM324, etc.). The TS321 has an input common mode range (Vicm) that includes ground, and therefore can be employed in single supply applications. July 2008 N.C. 1 Inverting input 2 3 Non-inverting input V CC Rev 6 Output 1 V CC 2 Non-inverting input 3 8 N.C. - 7 VCC+ + 6 Output 5 N.C. 4 5 VCC+ 4 Inverting input 1/13 www.st.com 13 Circuit schematics 1 TS321 Circuit schematics Figure 1. Schematic diagram V CC 6mA 4mA 100mA Q5 Q6 CC Inverting input Q2 Q3 Q1 Q7 Q4 R SC Q11 Non-inverting input Output Q13 Q10 Q8 Q9 Q12 50mA GND 2/13 TS321 Absolute maximum ratings and operating conditions 2 Absolute maximum ratings and operating conditions Table 1. Absolute maximum ratings Symbol VCC+ Parameter Supply voltage Vi Input voltage Vid Differential input voltage Output short-circuit duration (1) Iin Unit ±16 to 32 V -0.3 to +32 V +32 V Infinite 50 mA -65 to +150 °C Maximum junction temperature +150 °C Rthja Thermal resistance junction to ambient (3) SOT23-5 SO-8 250 125 °C/W Rthjc Thermal resistance junction to case(3) SOT23-5 SO-8 81 40 °C/W HBM: human body model(4) 300 Tstg Tj Input current (2) Value Storage temperature range MM: machine model ESD (5) CDM: charged device model(6) Sot23-5 SO-8 200 V 1000 1500 1. Short-circuits from the output to VCC can cause excessive heating if VCC > 15 V. The maximum output current is approximately 40 mA independent of the magnitude of VCC. 2. This input current only exists when the voltage at any of the input leads is driven negative. It is due to the collector-base junction of the input PNP transistor becoming forward biased and thereby acting as input diodes clamps. In addition to this diode action, there is also NPN parasitic action on the IC chip. This transistor action can cause the output voltages of the Op-amps to go to the VCC voltage level (or to ground for a large overdrive) for the time during which an input is driven negative. This is not destructive and normal output is restored when the input voltage goes back above -0.3V. 3. Short-circuits can cause excessive heating. Destructive dissipation can result from simultaneous short-circuits on all amplifiers. All values are typical. 4. Human body model: a 100 pF capacitor is charged to the specified voltage, then discharged through a 1.5 kΩ resistor between two pins of the device. This is done for all couples of connected pin combinations while the other pins are floating. 5. Machine model: a 200 pF capacitor is charged to the specified voltage, then discharged directly between two pins of the device with no external series resistor (internal resistor < 5 Ω). This is done for all couples of connected pin combinations while the other pins are floating. 6. Charged device model: all pins and the package are charged together to the specified voltage and then discharged directly to the ground through only one pin. This is done for all pins. The CDM value applies to SO-8 only. 3/13 Absolute maximum ratings and operating conditions Table 2. Operating conditions Symbol VCC+ TS321 Parameter Supply voltage Value Unit 3 to 30 V 0 to VCC+ -1.5 0 to VCC+ -2 V -40 to +125 °C + 4/13 Vicm Common mode input voltage range (VCC = 30 V) Tamb = +25°C Tmin ≤ Tamb ≤ Tmax Toper Operating free-air temperature range TS321 Electrical characteristics 3 Electrical characteristics Table 3. VCC+ = +5V, VCC- = Ground, Vo = 1.4V, Tamb = +25°C (unless otherwise specified) Symbol Vio Parameter Input offset voltage (1) Conditions TS321 TS321A Tmin ≤ Tamb ≤ Tmax TS321 TS321A Iio Input offset current Iib Input bias current (2) Avd Large signal voltage gain SVR Supply voltage rejection Rs ≤ 10kΩ, VCC+ = 5 to 30V ratio ICC Supply current, no load Max. 0.5 4 2 VCC+ = +15V, RL = 2kΩ, Vo = 1.4V to 11.4V Tmin ≤ Tamb ≤ Tmax mV 2 30 50 nA 20 150 200 nA 50 25 100 65 110 VCC+ = +5V VCC+ = +30V Tmin ≤ Tamb ≤ Tmax VCC+ = +5V VCC+ = +30V Isource Output current source Vid = +1V VCC+ = +15V, Vo = +2V Output sink current Vid = -1V VCC+ = +15V, Vo = +2V VCC+ = +15V, Vo = +0.2V Short-circuit to ground VCC+ = +15V + Unit 5 3 Tmin ≤ Tamb ≤ Tmax Common mode rejection Rs ≤ 10kΩ ratio Io Typ. Tmin ≤ Tamb ≤ Tmax CMR Isink Min. V/mV dB 500 600 800 900 600 900 1000 µA 65 85 dB 20 40 mA 10 12 20 50 mA µA 40 mA VOH VCC = +30V, RL = 2kΩ Tmin ≤ Tamb ≤ Tmax VCC+ = +30V, RL = 10kΩ High level output voltage Tmin ≤ Tamb ≤ Tmax VCC+ = +5V, RL = 2kΩ Tmin ≤ Tamb ≤ Tmax VOL Low level output voltage RL = 10kΩ Tmin ≤ Tamb ≤ Tmax SR Slew rate VCC+ = +15V, Vi = 0.5 to 3V, RL = 2kΩ, CL = 100pF, unity gain 0.4 V/μs Gain bandwidth product VCC+ = 30V, f = 100kHz, Vin = 10mV, RL = 2kΩ, CL = 100pF 0.8 MHz 60 Degrees GBP φm Phase margin 26 25.5 27 26.5 3.5 3 60 27 28 5 V 15 20 mV 5/13 Electrical characteristics Table 3. TS321 VCC+ = +5V, VCC- = Ground, Vo = 1.4V, Tamb = +25°C (unless otherwise specified) (continued) Symbol Parameter Conditions THD Total harmonic distortion f = 1kHz, AV = 20dB, RL = 2kΩ, Vo = 2Vpp, CL = 100pF, VCC+ = +30V Equivalent input noise voltage f = 1kHz, Rs = 100Ω, VCC+ = +30V en Min. Typ. Max. Unit 0.015 % 40 nV -----------Hz 1. Vo = 1.4 V, Rs = 0 Ω, 5 V < VCC+ < 30 V, 0 < Vicm < VCC+ - 1.5 V. 2. The direction of the input current is out of the IC. This current is essentially constant and independent of the state of the output, therefore there is no change in the load on the input lines. 6/13 TS321 Electrical characteristics Figure 2. Current consumption versus temperature Figure 3. AC coupled inverting amplifier Rf 100kW CI A V= - Rf R1 (as shown AV = -10) R1 10kW Co 0 eo RB 6.2kW R3 100kW eI ~ R2 VCC 100kW 2VPP RL 10kW C1 10mF Figure 4. Non-inverting DC gain Figure 5. R1 100kW A V = 1 + R2 R1 10kW (As shown A V = 101) eO 1/4 TS324 +5V AC coupled non-inverting amplifier R2 1MW A V= 1 + R2 R1 (as shown AV = 11) C1 0.1mF Co 0 eo CI R1 10kW e O (V) RB 6.2kW R2 1MW eI ~ R3 1MW 2VPP RL 10kW R4 100kW VCC 0 Figure 6. e1 C2 10mF R5 100kW e I (mV) DC summing amplifier 100kW eO 100kW e2 100kW e3 100kW 100kW e4 100kW 7/13 Macromodel TS321 4 Macromodel 4.1 Important note concerning this macromodel Please consider the following remarks before using this macromodel. ● All models are a trade-off between accuracy and complexity (i.e. simulation time). ● Macromodels are not a substitute to breadboarding; rather, they confirm the validity of a design approach and help to select surrounding component values. ● A macromodel emulates the nominal performance of a typical device within specified operating conditions (temperature, supply voltage, for example). Thus the macromodel is often not as exhaustive as the datasheet, its purpose is to illustrate the main parameters of the product. Data derived from macromodels used outside of the specified conditions (VCC, temperature, for example) or even worse, outside of the device operating conditions (VCC, Vicm, for example), is not reliable in any way. 4.2 Macromodel code ** Standard Linear Ics Macromodels, 1993. ** CONNECTIONS : * 1 INVERTING INPUT * 2 NON-INVERTING INPUT * 3 OUTPUT * 4 POSITIVE POWER SUPPLY * 5 NEGATIVE POWER SUPPLY .SUBCKT TS321 1 2 3 4 5 *************************** .MODEL MDTH D IS=1E-8 KF=3.104131E-15 CJO=10F * INPUT STAGE CIP 2 5 1.000000E-12 CIN 1 5 1.000000E-12 EIP 10 5 2 5 1 EIN 16 5 1 5 1 RIP 10 11 2.600000E+01 RIN 15 16 2.600000E+01 RIS 11 15 2.003862E+02 DIP 11 12 MDTH 400E-12 DIN 15 14 MDTH 400E-12 VOFP 12 13 DC 0 VOFN 13 14 DC 0 IPOL 13 5 1.000000E-05 CPS 11 15 3.783376E-09 DINN 17 13 MDTH 400E-12 VIN 17 5 0.000000e+00 DINR 15 18 MDTH 400E-12 VIP 4 18 2.000000E+00 FCP 4 5 VOFP 3.400000E+01 FCN 5 4 VOFN 3.400000E+01 FIBP 2 5 VOFN 2.000000E-03 8/13 TS321 Macromodel FIBN 5 1 VOFP 2.000000E-03 * AMPLIFYING STAGE FIP 5 19 VOFP 3.600000E+02 FIN 5 19 VOFN 3.600000E+02 RG1 19 5 3.652997E+06 RG2 19 4 3.652997E+06 CC 19 5 6.000000E-09 DOPM 19 22 MDTH 400E-12 DONM 21 19 MDTH 400E-12 HOPM 22 28 VOUT 7.500000E+03 VIPM 28 4 1.500000E+02 HONM 21 27 VOUT 7.500000E+03 VINM 5 27 1.500000E+02 EOUT 26 23 19 5 1 VOUT 23 5 0 ROUT 26 3 20 COUT 3 5 1.000000E-12 DOP 19 25 MDTH 400E-12 VOP 4 25 2.242230E+00 DON 24 19 MDTH 400E-12 VON 24 5 7.922301E-01 .ENDS 4.3 Macromodel electrical characteristics Table 4. VCC+ = +3V, VCC- = 0V, RL, CL connected to VCC/2, Tamb = 25°C (unless otherwise specified) Symbol Conditions Vio Value Unit 0 mV Avd RL = 2 kΩ 100 V/mV ICC No load, per operator 300 µA 0 to +3.5 V Vicm VOH RL = 2 kΩ 3.5 V VOL RL = 2 kΩ 5 mV Vo = 0 V 40 mA GBP RL = 2 kΩ, CL = 100 pF 0.8 MHz SR RL = 2 kΩ, CL = 100 pF 0.4 V/μs ∅m RL = 2 kΩ, CL = 100 pF 60 Degrees Ios 9/13 Package information 5 TS321 Package information In order to meet environmental requirements, ST offers these devices in ECOPACK® packages. These packages have a lead-free second level interconnect. The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com. 5.1 SOT23-5 package information Figure 7. SOT23-5 package mechanical drawing Table 5. SOT23-5 package mechanical data Dimensions Ref. Millimeters Min. Max. Min. Typ. Max. A 0.90 1.45 35.4 57.1 A1 0.00 0.15 0.00 5.9 A2 0.90 1.30 35.4 51.2 b 0.35 0.50 13.7 19.7 C 0.09 0.20 3.5 7.8 D 2.80 3.00 110.2 118.1 E 2.60 3.00 102.3 118.1 E1 1.50 1.75 59.0 68.8 e 0.95 37.4 e1 1.9 74.8 L 10/13 Typ. Mils 0.35 0.55 13.7 21.6 TS321 5.2 Package information SO-8 package information Figure 8. SO-8 package mechanical drawing Table 6. SO-8 package mechanical data Dimensions Ref. Millimeters Min. Typ. A Inches Max. Min. Typ. 1.75 0.069 A1 0.10 A2 1.25 b 0.28 0.48 0.011 0.019 c 0.17 0.23 0.007 0.010 D 4.80 4.90 5.00 0.189 0.193 0.197 H 5.80 6.00 6.20 0.228 0.236 0.244 E1 3.80 3.90 4.00 0.150 0.154 0.157 e 0.25 Max. 0.004 0.010 0.049 1.27 0.050 h 0.25 0.50 0.010 0.020 L 0.40 1.27 0.016 0.050 k 1° 8° 1° 8° ccc 0.10 0.004 11/13 Ordering information 6 TS321 Ordering information Table 7. Order codes Part number Temperature range Package Packaging SOT23-5L Tape & reel TS321ILT Marking K401 TS321AILT K402 TS321ID/IDT -40°C, +125°C Tube or tape & reel SO-8 TS321AID/AIDT TS321IYLT(1) SOT23-5L (Automotive grade level) TS321AIYLT(1) 321I 321AI K406 Tape & reel K407 1. Qualification and characterization according to AEC Q100 and Q003 or equivalent, advanced screening according to AEC Q001 & Q002 or equivalent are on-going. 7 Revision history Table 8. Document revision history Date Revision 30-Jun-2001 1 Initial release. 04-Jul-2005 2 PPAP references inserted in the datasheet, see order codes table. ESD protection inserted in Table 1: Absolute maximum ratings. 06-Sep-2005 3 Correction of errors in package names and markings in order codes table. Minor grammatical and formatting corrections. 4 Missing PPAP references inserted, see order codes table. Thermal resistance junction to ambient and thermal resistance junction to case information added in Table 1: Absolute maximum ratings. Macromodel updated see Section 4: Macromodel. 08-Nov-2007 5 Added CDM value for SO-8 in Table 1: Absolute maximum ratings. Added Tj value in Table 1: Absolute maximum ratings. Macromodel updated see Section 4: Macromodel. Reformatted package information. Added footnote in Table 7: Order codes. Removed TS321IYD/IYDT and TS321AIYD/AIYDT order codes. 08-Jul-2008 6 Added CDM value for SOT23-5 package in Table 1: Absolute maximum ratings. 12-Dec-2005 12/13 Changes TS321 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. 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