TS1002/TS1004 Dual/Quad Op Amps Demo Board FEATURES DESCRIPTION The demo boards for the TS1002 and the TS1004 are completely assembled and tested circuit boards that can be used for evaluating the TS1002 and the TS1004, respectively. The TS1002 and the TS1004 are the industry’s first and only dual and quad singlesupply, precision CMOS operational amplifiers fully specified to operate at 0.8V while consuming less than 0.6µA supply current per amplifier. Optimized for ultra-long-life battery-powered applications, the TS1002 and the TS1004 join the TS1001 operational amplifier in the “NanoWatt Analog™” highperformance analog integrated circuits portfolio. Both op amps exhibit a typical offset voltage of 0.5mV, a typical input bias current of 25pA, and rail-to-rail input and output stages. The TS1002 and the TS1004 can operate from single-supply voltages from 0.65V to 2.5V. 0.65V to 2.5V Single-supply operation AC-coupled Non-inverting and Inverting configurations supplied Fully Assembled and Tested 2mm x 2mm 2-layer demo board The TS1002 and the TS1004 are fully specified at VDD = 0.8V and over the industrial temperature range (−40°C to +85°C). The TS1002 is available in PCBspace saving 8-lead MSOP surface-mount packages. The TS1004 is available in a 14-pin TSSOP package. Figure 1. TS1002 Evaluation Board Product data sheets and additional documentation can be found at www.silabs.com. Ordering Information Order Number TS1002DB TS1004DB Description TS1002 Dual Op Amp Demo Board TS1004 Quad Op Amp Demo Board Figure 2. TS1004 Evaluation Board Page 1 © 2014 Silicon Laboratories, Inc. All rights reserved. TS1002/TS1004 Dual/Quad Op-Amps Demo Board Description Inverting Configuration The TS1002 and the TS1004 demo boards provide two configurations for evaluating the TS1002 dual and the TS1004 quad operational amplifiers. A noninverting gain of +2 configuration is located on the left-hand side of each board and an inverting gain of 1 configuration is located on the right-hand side of each board. In both cases, the input to each circuit is AC-coupled. The demo boards provide a re-biasing scheme at one-half the power supply or VDD/2 for the inverting configuration and at VDD/4 for the noninverting configuration. In an inverting configuration, the circuit’s transfer function is given by the following equation: The TS1004 demo board provides resistor pads R3R10 and Jumpers B and C in order to access op amps B and C. The default configuration for op amps B and C is a unity-gain.The non-inverting inputs are shorted to ground with 1Ω resistors on resistor pads R5 and R8 and the outputs are connected to the inverting inputs with 1Ω resistors on resistor pads R3 and R9. In both the non-inverting and the inverting configuration, the AC-coupling capacitor creates a high pass filter. The resulting cut-off frequency, fC, is given as: fC= ଵ VOUT VIN =- RX RY In this case, R3=RX=1MΩ and R6=RY=1MΩ on the TS1002 demo board and R13=RX=1MΩ and R14=RY=1MΩ on the TS1004 demo board. This results in a signal gain of -1 with a circuit bandwidth of 2kHz and an overall circuit bandwidth range of 1.6Hz to 2kHz. Quick Start Procedures Required Equipment TS1002 or TS1004 demo board DC Power Supply, Single or Dual Output Function Generator 4-channel Oscilloscope Two 1MΩ oscilloscope probes ଶRC Pin In the non-inverting circuit on the TS1002 demo board, R=R4=1MΩ and C=C2=0.1µF. In the inverting case, R=R6=1MΩ and C=C3=0.1µF. In the noninverting circuit on the TS1004 demo board, R=R17=1MΩ and C=C5=0.1µF. In the inverting case, R=R14=1MΩ and C=C4=0.1µF. In both cases, these component values generate a high-pass cut-off frequency of 1.6Hz. Default Configurations Non-Inverting Configuration In the non-inverting configuration, the circuit’s transfer function is given by the following equation: VOUT VIN RX = 1+ RY With R1=RX=2MΩ and R2=RY=2MΩ on the TS1002 demo board and R12=RX=2MΩ and R11=RY=2MΩ on the TS1004 demo board, the circuit signal gain is +2 with a circuit bandwidth of 2kHz. This results in an overall circuit bandwidth range of 1.6Hz to 2kHz. Page 2 Non-Inverting Inverting Circuit Circuit VDD VDD VDD VSS GND GND INA, INB VIN VIN-1 OUTA, OUTB VOUT VOUT-1 Table 1. TS1002 Demo Board Test Points Pin Non-Inverting Inverting Circuit Circuit VDD VDD VDD VSS GND GND INA, IND VIN VIN-1 OUTD, OUTD VOUT VOUT-1 Table 2. TS1004 Demo Board Test Points Non-Inverting Configuration In order to evaluate the TS1002 dual or TS1004 quad operational amplifiers in the non-inverting configuration, the following steps are to be performed: 1) Before connecting the DC power supply to the demo board power test points, turn on the power supply and set the DC voltage to 2.5V and then turn it off. TS1002/4-EVB Rev. 1.0 TS1002/TS1004 Dual/Quad Op-Amps Demo Board 2) Set the function generator frequency to 500Hz and output level with a VOH = 1.45V and a VOL = 1.05V. This sets the input signal swing to 400mVPP, centered at 1.25V. 3) In order to monitor the input and output signal, select two channels on the oscilloscope and set the vertical voltage scale and the coupling setting on each channel to 200mV/DIV and AC, respectively. Set the input and output vertical position to +400mV and -200mV, respectively. Set the horizontal time scale to 500µs/DIV. 4) Connect the positive terminal of the DC power supply to test point VDD and the negative terminal to test point GND on the TS1002 or TS1004 demo board. For all other connections, please refer to Table 1 and 2. 5) Connect the signal output of the function generator to test point VIN on the TS1002 or TS1004 demo board. Connect the ground terminal to test point GND. 7) Turn on the power supply and check that the power supply current is approximately 4.4µA for the TS1002 demo board and 5.5µA for the TS1004 demo board. 8) Turn on the function generator. 9) Observe the input and output signal. The output signal is an amplified version of the input signal with an output swing of approximately 800mVPP, corresponding to a signal gain of two. Figure 5 shows what the input and output signal should look like. The input signal is in yellow and the output signal is in green. Figure 4. TS1004 Amp ‘A’ Non-Inverting Configuration VOUT VIN 200mV/DIV 200mV/DIV Figure 3. TS1002 Amp ‘A’ Non-Inverting Configuration 6) To monitor the input, connect the signal terminal of one of the oscilloscope probes to test point VIN on the TS1002 or TS1004 demo board. Connect the ground terminal to test point GND. To monitor the output, use the second probe to connect the signal terminal to test point VOUT on the TS1002 or TS1004 demo board. Connect the ground terminal to test point GND. 500µs/DIV Figure 5. TS1002 and TS1004 Non-Inverting Configuration Input and Output signals TS1002/4-EVB Rev. 1.0 Page 3 TS1002/TS1004 Dual/Quad Op-Amps Demo Board Inverting Configuration In order to evaluate the TS1002 dual or TS1004 quad operational amplifiers in the inverting configuration, the following steps are to be performed: 1) Before connecting the DC power supply to the demo board, turn on the power supply and set the DC voltage to 2.5V and then turn it off. 2) Set the function generator output frequency to 500Hz and output level with a VOH = 1.45V and a VOL = 1.05V. This sets the input swing to 400mVPP, centered at 1.25V. 3) In order to monitor the input and output signal, select two channels on the oscilloscope and set the vertical voltage scale and the coupling setting on each channel to 200mV/DIV and AC, respectively. Set the input and output vertical position to +400mV and -400mV, respectively. Set the horizontal time scale to 500µs/DIV. 4) Connect the positive terminal of the DC power supply to test point VDD and the negative terminal to test point GND on the TS1002 or TS1004 demo board. For all other connections, please refer to Table 1 and 2. Figure 6. TS1002 Amp ‘B’ Inverting Configuration Page 4 5) Connect the signal output of the function generator to test point VIN-1 on the TS1002 or TS1004 demo board. Connect the ground terminal to test point GND. 6) To monitor the input, connect the signal terminal of one of the oscilloscope probes to test point VIN-1 on the TS1002 or TS1004 demo board. Connect the ground terminal to test point GND. To monitor the output, use the second probe to connect the signal terminal to test point VOUT-1 on the TS1002 or TS1004 demo board. Connect the ground terminal to test point GND. 7) Turn on the power supply and check that the power supply current is approximately 4.4µA for the TS1002 demo board and 5.5µA for the TS1004 demo board. 8) Turn on the function generator. 9) Observe the input and output signal. The output signal is an inverted version of the input signal with an output swing of approximately 400mVPP, corresponding to a signal gain of negative one. Figure 8 shows what the input and output signal should look like. The input signal is in yellow and the output signal is in green. Figure 7. TS1004 Amp ‘D’ Inverting Configuration TS1002/4-EVB Rev. 1.0 VOUT-1 200mV/DIV VIN-1 200mV/DIV TS1002/TS1004 Dual/Quad Op-Amps Demo Board 500µs/DIV Figure 8. TS1002 and TS1004 Non-Inverting Configuration Input and Output signals COMPONENT LIST DESIGNATION TS1002 QTY C1, C2, C3 3 C4, C5 2 R8 1 R5 1 R3, R4, R6 3 R9, R10 2 R1, R2, R7 3 U1 1 VDD, VIN, VIN-1, VOUT, VOUT-1 5 TS1002/4-EVB Rev. 1.0 DESCRIPTION DESIGNATION TS1004 QTY DESCRIPTION 0.1µF ± 10% capacitors (0805) 1µF ±10% capacitors (0805) 665kΩ ± 1% resistor (0805) 500kΩ ± 1% resistor (0805) 1MΩ ± 1% resistors (0805) 1.25MΩ ± 1% resistors (0805) 2MΩ ± 1% resistors (0805) TS1002 Dual OpAmps Test points C1, C4, C5 3 C2, C3 2 R15 1 R18 1 R13, R14, R17 3 R1, R2 2 R11, R12, R16 3 U1 2 VDD, VIN, VIN-1, VOUT, VOUT-1, Out_B, Out_C 7 0.1µF ± 10% capacitors (0805) 1µF ±10% capacitors (0805) 665kΩ ± 1% resistor (0805) 500kΩ ± 1% resistor (0805) 1MΩ ± 1% resistors (0805) 1.25MΩ ± 1% resistors (0805) 2MΩ ± 1% resistors (0805) TS1004 Quad OpAmps Test points Page 5 TS1002/TS1004 Dual/Quad Op-Amps Demo Board Figure 9. TS1002 Top Layer Component View Figure 10. TS1002 Bottom Layer (GND) #1 Figure 11. TS1002 Bottom Layer (GND) #2 Page 6 TS1002/4-EVB Rev. 1.0 TS1002/TS1004 Dual/Quad Op-Amps Demo Board Figure 12. TS1004 Top Layer Component Figure 13. TS1004 Bottom Layer (G Figure 14. TS1004 Bottom Layer (GND) #2 Silicon Laboratories, Inc. 400 West Cesar Chavez, Austin, TX 78701 +1 (512) 416-8500 ▪ www.silabs.com Page 7 TS1002/4-EVB Rev. 1.0 Smart. Connected. Energy-Friendly Products Quality Support and Community www.silabs.com/products www.silabs.com/quality community.silabs.com Disclaimer Silicon Laboratories intends to provide customers with the latest, accurate, and in-depth documentation of all peripherals and modules available for system and software implementers using or intending to use the Silicon Laboratories products. Characterization data, available modules and peripherals, memory sizes and memory addresses refer to each specific device, and "Typical" parameters provided can and do vary in different applications. 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