TSB572 Low-power, 2.5 MHz, RR IO, 36 V BiCMOS operational amplifier Datasheet - production data Applications Active filtering Audio systems Automotive Power supplies Industrial Low/High side current sensing MiniSO8 Description The TSB572 dual operational amplifier offers extended voltage operating range from 4 V to 36 V and rail-to-rail input/output. The TSB572 offers a very good speed/power consumption ratio with 2.5 MHz gain bandwidth product while consuming only 380 µA typically at 36 V supply voltage. DFN8 3x3 Stability and robustness of the TSB572 make it an ideal solution for a wide voltage range of applications. Features Low-power consumption: 380 µA typ Wide supply voltage: 4 V - 36 V Rail-to-rail input and output Gain bandwidth product: 2.5 MHz Low input bias current: 30 nA max No phase reversal High tolerance to ESD: 4 kV HBM Extended temperature range: -40 °C to 125 °C Automotive grade Small SMD packages 40 V BiCMOS technology Enhanced stability vs. capacitive load December 2015 DocID028308 Rev 2 This is information on a product in full production. 1/27 www.st.com Contents TSB572 Contents 1 Package pin connections................................................................ 3 2 Absolute maximum ratings and operating conditions ................. 4 3 4 Electrical characteristics ................................................................ 5 Application information ................................................................ 17 5 6 7 2/27 4.1 Operating voltages .......................................................................... 17 4.2 Input pin voltage ranges .................................................................. 17 4.3 Rail-to-rail input ............................................................................... 17 4.4 Input offset voltage drift over temperature ....................................... 18 4.5 Long term input offset voltage drift .................................................. 18 4.6 Capacitive load................................................................................ 20 4.7 PCB layout recommendations ......................................................... 21 4.8 Optimized application recommendation .......................................... 21 Package information ..................................................................... 22 5.1 MiniSO8 package information ......................................................... 23 5.2 DFN8 3x3 package information ....................................................... 24 Ordering information..................................................................... 25 Revision history ............................................................................ 26 DocID028308 Rev 2 TSB572 1 Package pin connections Package pin connections Figure 1: Pin connections for each package (top view) 1. Exposed pad can be left floating or connected to ground DocID028308 Rev 2 3/27 Absolute maximum ratings and operating conditions 2 TSB572 Absolute maximum ratings and operating conditions Table 1: Absolute maximum ratings Symbol VCC Vid Vin Iin Tstg Parameter Supply voltage Input voltage Input current (4) (2) ±1 (VCC ) V + - 0.2 to (VCC ) + 0.2 10 Storage temperature Maximum junction temperature Rthja Thermal resistance junction to (5)(6) ambient Human body model (HBM) Machine model (MM) mA -65 to 150 Tj ESD Unit 40 Differential input voltage (3) Value (1) 150 MiniSO8 190 DFN8 3x3 40 °C/W (7) (8) CDM: charged device model °C (9) Latch-up immunity 4 kV 100 V 1.5 kV 200 mA Notes: (1) (2) (3) (4) (5) (6) (7) (8) (9) All voltage values, except the differential voltage are with respect to network ground terminal. Differential voltages are the non-inverting input terminal with respect to the inverting input terminal. VCC-Vin must not exceed 6 V, Vin must not exceed 6 V. Input current must be limited by a resistor in-series with the inputs. Rth are typical values. Short-circuits can cause excessive heating and destructive dissipation. According to JEDEC standard JESD22-A114F. According to JEDEC standard JESD22-A115A. According to ANSI/ESD STM5.3.1. Table 2: Operating conditions Symbol VCC 4/27 Parameter Value Supply voltage Unit 4 to 36 Vicm Common mode input voltage range Toper Operating free-air temperature range DocID028308 Rev 2 (VCC ) + - 0.1 to (VCC ) + 0.1 -40 to 125 V °C TSB572 Electrical characteristics 3 Electrical characteristics Table 3: Electrical characteristics at Vcc = 4 V, Vicm = Vcc/2, Tamb = 25 °C, and RL connected to Vcc/2 (unless otherwise specified) Symbol Parameter Conditions Min. Typ. Max. Unit DC performance Vio ΔVio/ΔT Iio Input offset voltage Input offset voltage drift Input offset current -40 °C < T < 125 °C -1.5 1.5 -2.1 2.1 -40 °C < T < 125 °C 1.5 6 2 15 -40 °C < T < 125 °C 35 8 30 mV μV/°C nA Iib Input bias current CIN Input capacitor 2 pF RIN Input impedance 1 TΩ CMR Common mode rejection ratio 20 log (ΔVicm/ΔVio) Avd Large signal voltage gain VOH High level output voltage (drop voltage from (VCC+)) VOL Low level output voltage Isink Iout Isource ICC Supply current (per channel) -40 °C < T < 125 °C 70 Vicm = (VCC-) to (VCC+) - 1.5 V, Vout = VCC/2 90 -40 °C < T < 125 °C 80 Vicm = (VCC-) to (VCC+), Vout = VCC/2 75 -40 °C < T < 125 °C 70 RL= 10 kΩ, Vout = 0.5 to 3.5 V 90 -40 °C < T < 125 °C 85 RL = 10 kΩ 114 97 dB 100 19 -40 °C < T < 125 °C 60 80 RL = 10 kΩ 12 -40 °C < T < 125 °C 50 mV 70 Vout = VCC 20 -40 °C < T < 125 °C 5 Vout = 0 V 10 -40 °C < T < 125 °C 5 No load, Vout = VCC/2 38 mA 32 340 -40 °C < T < 125 °C 430 μA 500 AC performance GBP Gain bandwidth product RL = 10 kΩ, CL = 100 pF 1.5 -40 °C < T < 125 °C 1.2 2.2 MHz ϕm Phase margin RL = 10 kΩ, CL = 100 pF 45 degrees Gm Gain margin RL = 10 kΩ, CL = 100 pF 5 dB E DocID028308 Rev 2 5/27 Electrical characteristics Symbol Parameter Negative slew rate SR Positive slew rate en THD+N 6/27 TSB572 Equivalent input noise voltage Total harmonic distortion + noise Conditions Min. Typ. Vin = 3.5 to 0.5 V, Av = 1, 10 % to 90 %, RL = 10 kΩ, CL = 100 pF 0.50 0.78 -40 °C < T < 125 °C 0.37 Vin = 0.5 to 3.5 V, Av = 1, 10 % to 90 %, RL = 10 kΩ, CL = 100 pF 0.50 -40 °C < T < 125 °C 0.37 Max. Unit V/μs 0.89 f = 1 kHz 20 nV/√Hz f = 0.1 Hz to 10 Hz 0.7 μVpp 0.001 % f = 1 kHz, Vin = 3.8 Vpp, RL = 10 kΩ, CL = 100 pF DocID028308 Rev 2 TSB572 Electrical characteristics Table 4: Electrical characteristics at Vcc = 12 V, Vicm = Vcc/2, Tamb = 25 °C, and RL connected to Vcc/2 (unless otherwise specified) Symbol Parameter Conditions Min. Typ. Max. Unit DC performance Vio ΔVio/ΔT Iio Input offset voltage Input offset voltage drift Input offset current -40 °C < T < 125 °C -1.5 1.5 -2.1 2.1 -40 °C < T < 125 °C 1.5 6 2 15 -40 °C < T < 125 °C 35 8 30 mV μV/°C nA Iib Input bias current CIN Input capacitor 2 pF RIN Input impedance 1 TΩ CMR SVR Common mode rejection ratio 20 log (ΔVicm/ΔVio) Supply voltage rejection ratio 20 log (ΔVCC/ΔVio) Avd Large signal voltage gain VOH High level output voltage (drop voltage from VCC+) VOL Low level output voltage Isink Iout Isource ICC Supply current (per channel) -40 °C < T < 125 °C 70 Vicm = (VCC-) to (VCC+) - 1.5 V, Vout = VCC/2 100 -40 °C < T < 125 °C 90 Vicm = (VCC-) to (VCC+), Vout = VCC/2 85 -40 °C < T < 125 °C 80 VCC = 4 to 12 V 90 -40 °C < T < 125 °C 80 RL= 10 kΩ, Vout = 0.5 to 11.5 V 95 -40 °C < T < 125 °C 90 RL = 10 kΩ 123 106 dB 99 106 38 -40 °C < T < 125 °C 100 150 RL = 10 kΩ 16 -40 °C < T < 125 °C 70 mV 90 Vout = VCC 20 -40 °C < T < 125 °C 8 Vout = 0 V 15 -40 °C < T < 125 °C 7 No load, Vout = VCC/2 42 mA 35 360 -40 °C < T < 125 °C 450 530 μA AC performance GBP Gain bandwidth product RL = 10 kΩ, CL = 100 pF 1.6 -40 °C < T < 125 °C 1.3 2.4 MHz ϕm Phase margin RL = 10 kΩ, CL = 100 pF 50 degrees Gm Gain margin RL = 10 kΩ, CL = 100 pF 6 dB E DocID028308 Rev 2 7/27 Electrical characteristics Symbol Parameter Negative slew rate SR Positive slew rate en THD+N 8/27 TSB572 Conditions Min. Typ. Vin = 10.5 to 1.5 V, Av = 1, 10 % to 90 %, RL = 10 kΩ, CL = 100 pF 0.53 0.82 -40 °C < T < 125 °C 0.40 Vin = 1.5 to 10.5 V, Av = 1, 10 % to 90 %, RL = 10 kΩ, CL = 100 pF 0.55 -40 °C < T < 125 °C 0.40 Max. Unit V/μs 0.92 Equivalent input noise voltage f = 1 kHz 20 nV/√Hz f = 0.1 Hz to 10 Hz 0.7 μVpp Total harmonic distortion + noise f = 1 kHz, Vin = 7 Vpp, RL = 10 kΩ, CL = 100 pF 0.0005 % DocID028308 Rev 2 TSB572 Electrical characteristics Table 5: Electrical characteristics at Vcc = 36 V, Vicm = Vcc/2, Tamb = 25 °C, and RL connected to Vcc/2 (unless otherwise specified) Symbol Parameter Conditions Min. Typ. Max. Unit DC performance Vio ΔVio/ΔT ΔVio Iio Input offset voltage -40 °C < T < 125 °C -1.5 1.5 -2.1 2.1 Input offset voltage drift -40 °C < T < 125 °C 1.5 Long-term input offset (1) voltage drift T = 25 °C 1.5 Input offset current 2 -40 °C < T < 125 °C 6 μV/°C µV/√month 15 35 8 mV 30 nA Iib Input bias current CIN Input capacitor 2 pF RIN Input impedance 1 TΩ CMR Common mode rejection ratio 20 log (ΔVicm/ΔVio) SVR Supply voltage rejection ratio 20 log (ΔVCC/ΔVio) Avd Large signal voltage gain VOH High level output voltage (drop voltage from VCC+) VOL Low level output voltage Isink Iout Isource ICC Supply current (per channel) -40 °C < T < 125 °C 70 Vicm = (VCC-) to (VCC+) - 1.5 V, Vout = VCC/2 105 -40 °C < T < 125 °C 95 Vicm = (VCC-) to (VCC+), Vout = VCC/2 95 -40 °C < T < 125 °C 90 VCC = 4 to 36 V 90 -40 °C < T < 125 °C 85 RL= 10 kΩ, Vout = 0.5 to 35.5 V 95 -40 °C < T < 125 °C 90 RL = 10 kΩ 129 115 dB 104 114 78 -40 °C < T < 125 °C 150 200 RL = 10 kΩ 30 -40 °C < T < 125 °C 90 mV 120 Vout = VCC 25 -40 °C < T < 125 °C 10 Vout = 0 V 20 -40 °C < T < 125 °C 10 No load, Vout = VCC/2 65 mA 50 380 -40 °C < T < 125 °C 470 550 μA AC performance GBP Gain bandwidth product RL = 10 kΩ, CL = 100 pF 1.7 -40 °C < T < 125 °C 1.4 2.5 MHz ϕm Phase margin RL = 10 kΩ, CL = 100 pF 50 degrees Gm Gain margin RL = 10 kΩ, CL = 100 pF 8 dB E DocID028308 Rev 2 9/27 Electrical characteristics Symbol Parameter Negative slew rate SR Positive slew rate en THD+N TSB572 Conditions Min. Typ. Vin = 22.5 to 13.5 V, Av = 1, 10 % to 90 %, RL = 10 kΩ, CL = 100 pF 0.57 0.88 -40 °C < T < 125 °C 0.44 Vin = 13.5 to 22.5 V, Av = 1, 10 % to 90 %, RL = 10 kΩ, CL = 100 pF 0.60 -40 °C < T < 125 °C 0.44 Max. Unit V/μs 1.00 Equivalent input noise voltage f = 1 kHz 20 nV/√Hz f = 0.1 Hz to 10 Hz 0.7 μVpp Total harmonic distortion + noise f = 1 kHz, Vin = 7 Vpp, RL = 10 kΩ, CL = 100 pF 0.001 % Notes: (1) Typical value is based on the Vio drift observed after 1000h at 125 °C extrapolated to 25 °C using Arrhenius law and assuming an activation energy of 0.7 eV. The operational amplifier is aged in follower mode configuration (see Section 4.5). 10/27 DocID028308 Rev 2 TSB572 Electrical characteristics Figure 2: Supply current vs. supply voltage Figure 3: Input offset voltage distribution at VCC = 4 V Figure 4: Input offset voltage distribution at VCC = 12 V Figure 5: Input offset voltage distribution at VCC = 36 V Figure 6: Input offset voltage vs. temperature at VCC = 36 V Figure 7: Input offset voltage temperature variation distribution at VCC = 36 V DocID028308 Rev 2 11/27 Electrical characteristics TSB572 Figure 8: Input offset voltage vs. supply voltage Figure 9: Input offset voltage vs. common-mode voltage at VCC = 4 V Figure 10: Input offset voltage vs. common-mode voltage at VCC = 36 V Figure 11: Input bias current vs. temperature at VICM = VCC/2 Figure 12: Input bias current vs. common-mode voltage at VCC = 36 V Figure 13: Output current vs. output voltage at VCC = 4 V 12/27 DocID028308 Rev 2 TSB572 Electrical characteristics Figure 14: Output current vs. output voltage at VCC = 36 V Figure 15: Output voltage (Voh) vs. supply voltage Figure 16: Output voltage (Vol) vs. supply voltage Figure 17: Negative slew rate at VCC = 36 V Figure 18: Positive slew rate at VCC = 36 V Figure 19: Slew rate vs. supply voltage DocID028308 Rev 2 13/27 Electrical characteristics 14/27 TSB572 Figure 20: Bode diagram at VCC = 4 V Figure 21: Bode diagram at VCC = 36 V Figure 22: Phase margin vs. output current at VCC = 4 V Figure 23: Phase margin vs. output current at VCC = 36 V Figure 24: Phase margin vs. capacitive load Figure 25: Overshoot vs. capacitive load at VCC = 36 V DocID028308 Rev 2 TSB572 Electrical characteristics Figure 27: Output desaturation vs. time Figure 28: Amplifier behavior close to the rails at VCC = 36 V Figure 29: Noise vs. frequency at VCC = 36 V Equivalent Input Noise Voltage (nV/√Hz) Figure 26: Small step response vs. time at VCC = 4 V 100 80 @Vcc=36V @Vcc=12V @Vcc=4V Vicm=Vcc/2 T=25°C 60 40 20 0 10 Figure 30: Noise vs. time at VCC = 36 V DocID028308 Rev 2 100 1000 Frequency (Hz) 10000 Figure 31: THD+N vs. frequency 15/27 Electrical characteristics TSB572 Figure 32: THD+N vs. output voltage Figure 33: PSRR vs. frequency at VCC = 36 V Figure 34: Channel separation vs. frequency at VCC= 36 V 16/27 DocID028308 Rev 2 TSB572 Application information 4 Application information 4.1 Operating voltages The TSB572 can operate from 4 V to 36 V. The parameters are fully specified for 4 V, 12 V, and 36 V power supplies. However, the parameters are stable in the full VCC range. Additionally, the main specifications are guaranteed in extended temperature ranges from -40 to 125 °C. 4.2 Input pin voltage ranges The TSB572 has internal ESD diode protection on the inputs. These diodes are connected between the inputs and each supply rail to protect the input transistors from electrical discharge. If the input pin voltage exceeds the power supply by 0.2 V, the ESD diodes become conductive and excessive current can flow through them. Without limitation this over current can damage the device. In this case, it is important to limit the current to 10 mA, by adding resistance on the input pin, as shown in Figure 35: "Input current limitation". Figure 35: Input current limitation 16 V R Vin 4.3 - + + - Vout Rail-to-rail input The TSB572 has rail-to-rail inputs. The input common mode range is extended from (VCC-) - 0.1 V to (VCC+) + 0.1 V at T = 25 °C. DocID028308 Rev 2 17/27 Application information 4.4 TSB572 Input offset voltage drift over temperature The maximum input voltage drift variation over temperature is defined as the offset variation related to the offset value measured at 25 °C. The operational amplifier is one of the main circuits of the signal conditioning chain, and the amplifier input offset is a major contributor to the chain accuracy. The signal chain accuracy at 25 °C can be compensated during production at application level. The maximum input voltage drift over temperature enables the system designer to anticipate the effect of temperature variations. The maximum input voltage drift over temperature is computed using Equation 1. Equation 1 ∆Vio V T – Vio 25 °C = max io ∆T T – 25 °C where T = -40 °C and 125 °C. The TSB572 datasheet maximum value is guaranteed by measurements on a representative sample size ensuring a Cpk (process capability index) greater than 1.3. 4.5 Long term input offset voltage drift To evaluate product reliability, two types of stress acceleration are used: Voltage acceleration, by changing the applied voltage Temperature acceleration, by changing the die temperature (below the maximum junction temperature allowed by the technology) with the ambient temperature. The voltage acceleration has been defined based on JEDEC results, and is defined using Equation 2. Equation 2 AFV = e β . V S – VU Where: AFV is the voltage acceleration factor β is the voltage acceleration constant in 1/V, constant technology parameter (β = 1) VS is the stress voltage used for the accelerated test VU is the voltage used for the application The temperature acceleration is driven by the Arrhenius model, and is defined in Equation 3. Equation 3 AFT = e Ea 1 1 ------ . – k TU TS Where: AFT is the temperature acceleration factor Ea is the activation energy of the technology based on the failure rate 18/27 DocID028308 Rev 2 TSB572 Application information -5 -1 k is the Boltzmann constant (8.6173 x 10 eV.K ) TU is the temperature of the die when VU is used (K) TS is the temperature of the die under temperature stress (K) The final acceleration factor, AF, is the multiplication of the voltage acceleration factor and the temperature acceleration factor (Equation 4). Equation 4 AF = AFT × AFV AF is calculated using the temperature and voltage defined in the mission profile of the product. The AF value can then be used in Equation 5 to calculate the number of months of use equivalent to 1000 hours of reliable stress duration. Equation 5 Months = AF × 1000 h × 12 months / 24 h × 365.25 days To evaluate the op amp reliability, a follower stress condition is used where V CC is defined as a function of the maximum operating voltage and the absolute maximum rating (as recommended by JEDEC rules). The Vio drift (in µV) of the product after 1000 h of stress is tracked with parameters at different measurement conditions (see Equation 6). Equation 6 VCC = maxVop with Vicm = VCC 2 The long term drift parameter (ΔVio), estimating the reliability performance of the product, is obtained using the ratio of the Vio (input offset voltage value) drift over the square root of the calculated number of months (Equation 7). Equation 7 ∆Vio = Vio dr ift month s Where Vio drift is the measured drift value in the specified test conditions after 1000 h stress duration. DocID028308 Rev 2 19/27 Application information 4.6 TSB572 Capacitive load Driving large capacitive loads can cause stability problems. Increasing the load capacitance produces gain peaking in the frequency response, with overshoot and ringing in the step response. It is usually considered that with a gain peaking higher than 2.3 dB an op amp might become unstable. Generally, unity gain configuration is the worst situation for stability and the ability to drive large capacitive loads. Figure 36: "Stability criteria with a serial resistor at different supply voltages" shows the serial resistor that must be added to the output, to make a system stable. Figure 37: "Test configuration for Riso" shows the test configuration using an isolation resistor, Riso. Figure 36: Stability criteria with a serial resistor at different supply voltages Figure 37: Test configuration for Riso V CC+ Riso VIN + Cload V CC- 20/27 DocID028308 Rev 2 VOUT 10 kΩ TSB572 4.7 Application information PCB layout recommendations Particular attention must be paid to the layout of the PCB tracks connected to the amplifier, load, and power supply. The power and ground traces are critical as they must provide adequate energy and grounding for all circuits. The best practice is to use short and wide PCB traces to minimize voltage drops and parasitic inductance. In addition, to minimizing parasitic impedance over the entire surface, a multi-via technique that connects the bottom and top layer ground planes together in many locations is often used. The copper traces that connect the output pins to the load and supply pins should be as wide as possible to minimize trace resistance. 4.8 Optimized application recommendation It is recommended to place a 22 nF capacitor as close as possible to the supply pin. A good decoupling will help to reduce electromagnetic interference impact. DocID028308 Rev 2 21/27 Package information 5 TSB572 Package information In order to meet environmental requirements, ST offers these devices in different grades of ® ® ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at: www.st.com. ® ECOPACK is an ST trademark. 22/27 DocID028308 Rev 2 TSB572 5.1 Package information MiniSO8 package information Figure 38: MiniSO8 package outline Table 6: MiniSO8 mechanical data Dimensions Ref. Millimeters Min. Typ. A Inches Max. Min. Typ. 1.1 A1 0 A2 0.75 b Max. 0.043 0.15 0 0.95 0.030 0.22 0.40 0.009 0.016 c 0.08 0.23 0.003 0.009 D 2.80 3.00 3.20 0.11 0.118 0.126 E 4.65 4.90 5.15 0.183 0.193 0.203 E1 2.80 3.00 3.10 0.11 0.118 0.122 0.80 0.016 e L 0.85 0.65 0.40 0.60 0.006 0.033 0.026 0.024 L1 0.95 0.037 L2 0.25 0.010 k ccc 0° 0.037 8° 0.10 DocID028308 Rev 2 0° 0.031 8° 0.004 23/27 Package information 5.2 TSB572 DFN8 3x3 package information Figure 39: DFN8 3x3 package outline and mechanical data 24/27 DocID028308 Rev 2 TSB572 6 Ordering information Ordering information Table 7: Order codes Order code Temperature range TSB572IQ2T TSB572IYQ2T TSB572IYST Packing -40 °C to 125 °C Tape and reel MiniSO8 (1) Marking K31 DFN8 3x3 (1) TSB572IST Package K32 K31 K32 Notes: (1) Automotive qualification according to AEC-Q100. DocID028308 Rev 2 25/27 Revision history 7 TSB572 Revision history Table 8: Document revision history Date Version 12-Oct-2015 1 Initial release 2 Section 2: "Absolute maximum ratings and operating conditions": updated ESD, MM value. Section 6: "Ordering information": removed footnote (1) from order code TSB572IQ2T. 17-Dec-2015 26/27 Changes DocID028308 Rev 2 TSB572 IMPORTANT NOTICE – PLEASE READ CAREFULLY STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgement. Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of Purchasers’ products. No license, express or implied, to any intellectual property right is granted by ST herein. Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product. ST and the ST logo are trademarks of ST. All other product or service names are the property of their respective owners. Information in this document supersedes and replaces information previously supplied in any prior versions of this document. © 2015 STMicroelectronics – All rights reserved DocID028308 Rev 2 27/27