CALIFORNIA MICRO DEVICES CMV1016 MICROPOWER RRO Operational Amplifier with Shutdown Features Applications • Tiny SOT23-6 Package • Mobile Communications • Guaranteed specs at 1.8V, 2.2V, 2.7V, 3V and 5V • Cellular Phones • Less than 1µA idle current. • Portable Equipment • Very Low operating Supply current typically 50µA@3V • Notebooks and PDAs • Electronic Toys • Rail-to-Rail Output • Simple shutdown mode(with logic level control) • Typical Total Harmonic Distortion of 0.02% at 3V • 1.0MHz Typical Gain Bandwidth Product • 0.5V/µs Typical Slew Rate Product Description The CMV1016 is a high performance CMOS operational amplifier available in a small SOT23-6 package. Operating with very low supply current, it is ideal for battery operated applications where power, space and weight are critical. Performance is similar to CAMD’s CMV1010 SOT Amp, with the addition of a shutdown pin to greatly reduce supply current when idle. The shutdown mode is controlled by an extra pin, and is compatible with most logic family signal levels. Ideal for use in personal electronics such as cellular handsets, pagers, cordless telephones and other products with limited space and battery power. PIN DIAGRAM 6-Pin SOT23-6 1 NON-INV INPUT 6 V+ + 5 2 V3 INV INPUT SHUTDOWN - 4 OUTPUT S TA N D A R D PA R T O R D E R I N G I N F O R M AT I O N Package Ordering Part Number Pins Style Tape & Reel Part Marking 6 SOT23-6 CMV1016Y/R 1016 C0950500 © 2000 California Micro Devices Corp. All rights reserved. 5/00 215 Topaz Street, Milpitas, California 95035 Tel: (408) 263-3214 Fax: (408) 263-7846 www.calmicro.com 1 CMV1016 CALIFORNIA MICRO DEVICES A B S O L U T E M A X I M U M R AT I N G S ( N O T E 1 ) Parameter ESD Protection (HBM, Note 2) Differential Input Voltage Voltage at input/output Pin Temperature: Storage Operating Junction (Note 4) Lead (Soldering, 10s) Supply Voltage (V+ to V−) Current at Input Pin Current at Output Pin (Note 3) Current at Power Supply Pins Rating 2000 +/− Supply Voltage (V+) +0.3, (V−) −0.3 −65 to 150 125 260 7.5 5 15 15 Unit V V V °C V mA mA mA O P E R AT I N G C O N D I T I O N S ( u n l e s s s p e c i f i e d o t h e r w i s e ) Parameter Supply Voltage Junction Temperature Thermal Resistance Rating 1.8 to 7 −40 to 85 325 Unit V °C °C / W Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating conditions indicate ratings for which the device is intended to be functional, but specific performance is not guaranteed. For guaranteed specifications and the test conditions, see the Electrical Operating Characteristics. Note 2: Human Body Model, 1.5KΩ in series with 100pF. Note 3 : Applies to both single-supply and split-supply operation. Continuous short ckt operation at elevated ambient temperatures can result in exceeding the maximum allowed junction temperature of 150°C. Note 4 : The maximum power dissipation is a function of TJ (MAX), θJA and TA. The maximum allowable power dissipation at any ambient temperature is PD = (TJ (MAX) - TA)/θJA . All numbers apply for packages soldered directly to a PC board. ©2000 California Micro Devices Corp. All rights reserved. 2 215 Topaz Street, Milpitas, California 95035 Tel: (408) 263-3214 Fax: (408) 263-7846 www.calmicro.com 5/00 CALIFORNIA MICRO DEVICES CMV1016 1 . 8 V E L E C T R I C A L O P E R AT I N G C H A R A C T E R I S T I C S ( U n l e s s o t h e r w i s e s p e c i f i e d T j = 2 5 ° C , V + = 1 . 8 V, V- = 0 V, R L > 1 M Ω ) Symbol VO S IB IO S RIN IS IS GBW AV SR PSRR Parameter Input Offset Voltage Input Bias Current Input Offset Current Input Resistance Supply Current Supply Current Gain Bandwidth Product Large Signal Voltage Gain Slew Rate Power Supply Rejection Ratio CMRR VC M Common Mode Rejection Ratio Common Mode Input Range THD Total Harmonic Distortion IS C VO VS D IH VS D IL IIN TO N TO F F Output Short Circuit Current Output Swing from either rail Amplifier ON Logic level Amplifier OFF Logic level Logic Pin Current Turn On Time Turn Off Time Conditions VO U T = 0.9V Typ Amplifier ON VS D = 1.8V Amplifier OFF VS D = 0V VO U T = 0.2V to 1.6V AV = −1, RL = 100K V+ = 0.9V t0 1.2V V− = −0.9V to −1.2V VCM = 0V 0V < VCM < 0.8V AV = −1, f = 1KHz, VO U T = 1Vp-p RL = 100K Source/Sink RL = 10K Amplifier ON Amplifier OFF VS D = V+ or GND Limit 9 1 0.5 1 40 0.01 0.8 80 0.4 60 0.1 Unit mV pA pA TΩ µA µA MHz dB V/µs 70 50 dB 60 0 1.1 40 dB 80 1 V 0.026 5 20 % 150 1.2 0.6 1 32 1 mA mV V V µA µs µs 2 . 2 V E L E C T R I C A L O P E R AT I N G C H A R A C T E R I S T I C S ( U n l e s s o t h e r w i s e s p e c i f i e d T j = 2 5 ° C , V + = 2 . 2 V, V- = 0 V, R L > 1 M Ω ) Symbol VO S IB IO S RIN IS IS GBW AV SR PSRR Parameter Input Offset Voltage Input Bias Current Input Offset Current Input Resistance Supply Current Supply Current Gain Bandwidth Product Large Signal Voltage Gain Slew Rate Power Supply Rejection Ratio CMRR VC M Common Mode Rejection Ratio Common Mode Input Range THD Total Harmonic Distortion IS C VO VS D IH VS D IL IIN TO N TO F F Output Short Circuit Current Output Swing from either rail Amplifier ON Logic level Amplifier OFF Logic level Logic Pin Current Turn On Time Turn Off Time Conditions VO U T = 1.1V Typ Amplifier ON VS D = 2.2V Amplifier OFF VS D = 0V VO U T = 0.2V to 2V AV = −1, RL = 100K V+ = 1.1V t0 1.4V V− = −1.1V to −1.4V VCM = 0V 0V < VCM < 1.2V AV = −1, f = 1KHz, VO U T = 1.4Vp-p RL = 100K Source/Sink RL = 10K Amplifier ON Amplifier OFF VS D = V+ or GND Limit 9 1 0.5 1 40 0.01 0.87 80 0.45 60 0.1 Unit mV pA pA TΩ µA µA MHz dB V/µs 70 50 dB 60 0 1.5 40 dB 80 1 V 0.02 7 20 23 1 % 150 1.6 0.6 1 mA mV V V µA µs µs © 2000 California Micro Devices Corp. All rights reserved. 5/00 215 Topaz Street, Milpitas, California 95035 Tel: (408) 263-3214 Fax: (408) 263-7846 www.calmicro.com 3 CMV1016 CALIFORNIA MICRO DEVICES 2 . 7 V E L E C T R I C A L O P E R AT I N G C H A R A C T E R I S T I C S ( U n l e s s o t h e r w i s e s p e c i f i e d T j = 2 5 ° C , V + = 2 . 7 V, V- = 0 V, R L > 1 M Ω ) Symbol VO S Parameter Input Offset Voltage Conditions VO U T = 1.35V Typ IB Input Bias Current IO S Input Offset Current RIN Input Resistance IS Supply Current Amplifier ON VS D = 2.7V IS Supply Current Amplifier OFF VS D = 2.7V GBW Gain Bandwidth Product Limit 6 1 Unit mV pA 0.5 pA 1 TΩ 45 85 0.01 1 0.95 µA µA MHz AV Large Signal Voltage Gain VO U T = 0.2V to 2.5V 85 65 dB SR Slew Rate AV = −1, RL = 100K 0.5 0.2 V/µs PSRR Power Supply Rejection Ratio 70 50 dB 60 45 dB CMRR Common Mode Rejection Ratio VC M Common Mode Input Range THD Total Harmonic Distortion IS C Output Short Circuit Current V+ = 1.35V to 1.65V V− = −1.35V to 1.65V VCM = 0V 0V < VCM < 1.7V 0 2 V AV = −1, f = 1KHz, VO U T = 1.9Vp-p RL = 100K Source/Sink 0.02 % 12 mA RL = 10K 20 VO Output Swing from either rail 150 mV VS D IH Amplifier ON Logic Level Amplifier ON 2 V VS D IL Amplifier OFF Logic Level Amplifier OFF 0.8 V IIN Logic Pin Current 1 µA TO N Turn On Time 19 µs TO N Tun Off Time 1 µs VS D = V+ or GND ©2000 California Micro Devices Corp. All rights reserved. 4 215 Topaz Street, Milpitas, California 95035 Tel: (408) 263-3214 Fax: (408) 263-7846 www.calmicro.com 5/00 CALIFORNIA MICRO DEVICES CMV1016 3 V E L E C T R I C A L O P E R AT I N G C H A R A C T E R I S T I C S ( U n l e s s o t h e r w i s e s p e c i f i e d T j = 2 5 ° C , V + = 3 V, V- = 0 V, R L > 1 M Ω ) Symbol VO S Parameter Input Offset Voltage IB Input Bias Current Conditions VO U T = 1.5V Typ Limit 5 1 Unit mV pA IO S Input Offset Current RIN Input Resistance 0.5 pA 1 TΩ IS Supply Current Amplifier ON VS O + 3V 50 90 IS Supply Current Amplifier OFF VS O + 0V 0.01 1 GBW Gain Bandwidth Product 1 µA µA MHz AV Large Signal Voltage Gain VO U T = 0.2V to 2.8V 85 65 dB SR Slew Rate AV = −1, RL = 100K 0.5 0.2 V/µs PSRR Power Supply Rejection Ratio V+ = 1.5V to 1.8V V− = −1.5V to −1.8V VCM = 0V 0V < VCM < 2V 80 55 dB 70 50 dB CMRR Common Mode Rejection Ratio VC M Common Mode Input Range THD Total Harmonic Distortion IS C VO 0 2.3 V 0.02 % Output Short Circuit Current AV = −1, f = 1KHz, VO U T = 2Vp-p RL = 100K Source/Sink Output Swing from either rail RL = 10K 20 15 mA 150 mV VS D IH Amplifier ON Logic Level Amplifier ON 2.2 V VS D IL Amplifier OFF Logic Level Amplifier OFF 1 V IIN Logic Pin Current 1 µA TO N Turn On Time 17 µs TO F F Turn Off Time 1 µs VSD + V+ or GND © 2000 California Micro Devices Corp. All rights reserved. 5/00 215 Topaz Street, Milpitas, California 95035 Tel: (408) 263-3214 Fax: (408) 263-7846 www.calmicro.com 5 CMV1016 CALIFORNIA MICRO DEVICES 5 V E L E C T R I C A L O P E R AT I N G C H A R A C T E R I S T I C S ( U n l e s s o t h e r w i s e s p e c i f i e d T j = 2 5 ° C , V + = 5 V, V- = 0 V, R L > 1 M Ω ) Symbol VO S Parameter Input Offset Voltage Conditions VO U T = 1.5V Typ Limit 5 IB Input Bias Current IO S Input Offset Current RIN Input Resistance IS Supply Current Amplifier ON VS D + 3V 60 100 IS Supply Current Amplifier OFF VS D + 0V 0.01 1 GBW Gain Bandwidth Product 1 Unit mV pA 0.5 pA 1 TΩ 1 µA µA MHz AV Large Signal Voltage Gain VO U T = 0.2V to 2.8V 90 70 dB SR Slew Rate AV = −1, RL = 100K 0.5 0.2 V/µs PSRR Power Supply Rejection Ratio V+ = 1.5V to 1.8V V− = −1.5V to −1.8V VCM = 0V 0V < VCM < 2V 80 55 dB 70 50 dB CMRR Common Mode Rejection Ratio VC M Common Mode Input Range THD Total Harmonic Distortion IS C Output Short Circuit Current AV = −1, f = 1KHz, VO U T = 2Vp-p RL = 100K Source/Sink VO Output Swing from either rail RL = 10K 0 2.3 V 0.02 % 20 15 mA 150 mV VS D IH Amplifier ON Logic Level Amplifier ON 4 V VS D IL Amplifier OFF Logic Level Amplifier OFF 1 V IIN Logic Pin Current 1 µA TO N Turn On Time 10 µs TO F F Turn Off Time 1 µs VSD + V+ or GND ©2000 California Micro Devices Corp. All rights reserved. 6 215 Topaz Street, Milpitas, California 95035 Tel: (408) 263-3214 Fax: (408) 263-7846 www.calmicro.com 5/00 CALIFORNIA MICRO DEVICES CMV1016 Open Loop Voltage Gain Response Open Loop Phase Response RL = 1MEG RL = 1MEG RL = 100K V+ = 5V V- = 0V TA = 25°C RL = 100K Phase (º) AVOL (dB) RL = 10K V+ = 5V V- = 0V TA = 25°C RL = 10K Frequency(Hz) Frequency(Hz) Large Signal Pulse Response Supply Current Versus Supply Voltage V+ = 5V V- = 0V RL = 100KΩ TA = 25°C TA = 85ºC VOUT (V) Supply Current (µA) TA = 25ºC TA = -40ºC Time(µs) Supply Voltage(V) Inverting Small Signal Response Non Inverting Small Signal Response RL = 10K RL = 10K RL = 100K RL = 100K V+ = 5V V- = 0V TA = 25°C VOUT (V) VOUT (V) V+ = 5V V- = 0V TA = 25°C Time(µs) Time(µs) © 2000 California Micro Devices Corp. All rights reserved. 5/00 215 Topaz Street, Milpitas, California 95035 Tel: (408) 263-3214 Fax: (408) 263-7846 www.calmicro.com 7 CMV1016 CALIFORNIA MICRO DEVICES Current Sourcing Versus VOUT Common Mode Rejection Ratio VS = ±2.5V -2.5V < V in < 2V T A = 25°C IOUT V+ = 5V V- = 0V TA = 25°C (m V) VOUT is referenced to V+ O VS VOUT(V) V in(V) Disabled Supply Current Versus Supply Voltage Current Sourcing Versus V OUT V+ = 5V V- = 0V TA = 25°C OU T I VOUT is referenced to V+ Supply Current (nA) VSD = 0V V- = 0V TA = 85ºC TA = 25ºC TA = -40ºC Supply Voltage(V) VOUT (V) ©2000 California Micro Devices Corp. All rights reserved. 8 215 Topaz Street, Milpitas, California 95035 Tel: (408) 263-3214 Fax: (408) 263-7846 www.calmicro.com 5/00 CALIFORNIA MICRO DEVICES CMV1016 5V Enable Response for a family of DC Inputs 5V Disable Response for a family of DC Inputs VIN = 3.5V V+ = 5V V- = 0V RL = 10KΩ TA = 25°C AV = +1 VIN = 3V VOUT (V) VIN = 5V VOUT (V) V+ = 5V V- = 0V RL = 10KΩ TA = 25°C AV = +1 VIN = 4V VIN = 2V VIN = 3V VIN = 1V VIN = 2V VIN = 1V Time(µs) Time(µs) Turn ON Time Versus Supply Voltage 180 Turn ON Time + OPAMP Settling Time (µs) 160 140 VIN = 0.5*V+ V- = 0V RL = 10KΩ TA = 25°C AV = +1 120 100 80 60 40 20 0 1.8 2.2 2.7 3.3 4 5 Supply Voltage(V) © 2000 California Micro Devices Corp. All rights reserved. 5/00 215 Topaz Street, Milpitas, California 95035 Tel: (408) 263-3214 Fax: (408) 263-7846 www.calmicro.com 9 CMV1016 CALIFORNIA MICRO DEVICES temperature rise are small, a short analysis is worth investigating. Applications Information 1. Input Common Mode Range and Output Voltage Considerations The CMV1016 is capable of accommodating an input common mode voltage equal to one volt below the positive rail and all the way to the negative rail. It is also capable of output voltages equal to both power supply rails. Voltages that exceed the supply voltages will not cause phase inversion of the output, however, ESD diode clamps are provided at the inputs that can be damaged if static currents in excess of ±5mA are allowed to flow in them. This can occur when the magnitude of input voltage exceeds the rail by more than 0.3 volt. To preclude damage, an applications resistor, RS, in series with the input is recommended as illustrated in Figure 1 whose value for RS is given by: VIN – (V+ + 0.3V) RS > ————————— 5mA Obviously, the worst case from a power dissipation point of view is when the output is shorted to either ground in a single rail application or to the opposite supply voltage in split rail applications. Since device only draws 60µA supply current (100µA maximum), its contribution to the junction temperature, TJ, is negligible. As an example, let us analyze a situation in which the CMV1016 is operated from a 5 volt supply and ground, the output is “programmed” to positive saturation, and the output pin is indefinitely shorted to ground. In general: PDISS = (V+ – VOUT)*IOUT + IS*V+ Where: PDISS = Power dissipated by the chip V+ = Supply voltage VOUT = The output voltage IS = Supply Current For V+ (or V-) equal to 2.2 volts and VIN equal to 10 volts, Rs should be chosen for a value of 2.5 KΩ or greater. The Shutdown pin also provides ESD clamp diodes that will be damaged if the signal exceeds the rail by 0.3 volts and should also be limited to <5mA by inserting the appropriate resistor between the input signal or logic gate and the Shutdown input. The contribution to power dissipation due to supply current is 500µW and is indeed negligible as stated above. The primary contribution to power dissipation occurs in the output stage. V+ – VOUT would equal 5V – 0V = 5V while the short circuit current would be 25mA. The power dissipation would be equal to 125mW. TJ = TA + θJA* PDISS Where: TA = The ambient temperature θJA = The thermal impedance of the package junction to ambient The SOT23 exhibits a θJA equal to 325°C/W. Thus for our example the junction rise would be about 41°C which is clearly not a destructive situation even under an ambient temperature of 85°C. 3. Input Impedance Considerations Figure 1. 2. Output Current and Power Dissipation Considerations The CMV1016 is capable of sinking and sourcing output currents in excess of 7mA (V+ = 2.2 volts) at voltages very nearly equal to the rails. As such, it does not have any internal short circuit protection (which would in any event detract from its rail to rail capability). Although the power dissipation and junction The CMV1016 exhibits an input impedance typically in excess of 1 Tera Ω (1 X 1012 ohms) making it very appropriate for applications involving high source impedance such as photodiodes and high output impedance transducers or long time constant integrators. High source impedances usually dictate large feedback resistors. But, the output capacitance of the source in parallel with the input capacitance of the CMV1016 (which is typically 3pF) create a parasitic pole with the feedback resistor which erodes the phase margin of the amplifier. The usual fix is to bypass, RF, as shown in Figure 2 with a small capacitor to cancel the input pole. The usual formula for calculating CF always results in a value larger than that is required: ©2000 California Micro Devices Corp. All rights reserved. 10 215 Topaz Street, Milpitas, California 95035 Tel: (408) 263-3214 Fax: (408) 263-7846 www.calmicro.com 5/00 CALIFORNIA MICRO DEVICES 1 1 ——————— ≥ —————— 2 ∏ R F CF 2 ∏ R S CS CMV1016 5. Power Supply Decoupling Since the parasitic capacitance can change between the breadboard and the production printed circuit board, we favor the use of a "gimmick", a technique perfected by TV technicians in the 1950’s. A gimmick is made by taking two lengths (typically about a foot) of small gauge wire such as AWG 24, twisting them together, and then after baring all ends soldering the gimmick across RF. With the circuit operating, CF is "adjusted" by clipping short lengths of the gimmick off until the compensation is nominal. Then simply remove the gimmick, take it to an impedance bridge, and select the capacitor accordingly. The CMV1016 is not prone to oscillation without the use of power supply decoupling capacitors, however to minimize hum and noise pick-up, it is recommended that the rails be bypassed with 0.01µF capacitors. 6. Turn On and Turn Off (Shut Down) Characteristics The turn off delay (Disable Response), tOFF, is defined as the time between the shut down signal crossing the disable threshold (typically V+ – 1 volt) and the time for the amplifier’s output to come within 10% of zero. It is largely governed by a propagation delay within the CMV1016 of few hundred nanoseconds followed by an exponential decay determined by the load resistance in parallel with the load capacitance. The turn on delay (Enable Response), tON, is defined as the time between the shutdown signal crossing the threshold and the time the output reaches to within 10% of its final value. tON is largely independent of supply voltage and input level. 7. Typical Applications Figure 2. 4. Capacitive Load Considerations The CMV1016 is capable of driving capacitate loads in excess of 100pF without oscillation. However, significant peaking will result. Probably the easiest way minimize this problem is to use an isolation resistor as shown in Figure 3. Illustrated in Figure 4 is a Sample and Hold Amplifier capable of operating from a single rail, but it will work equally well with split rails The circuit will accommodate input voltages (common mode) from zero volts to V+ – 1 volt. The Shut Down feature of the CMV1016 is used to disable A1 whose output acts like a very high impedance in this mode. The high slew rate of the CMV1016 and large output current minimize Acquisition Time. A2 presents a very high input impedance and very low bias current. A Logic "1", a voltage > V+ – 1 volt will put the circuit into "Sample" mode. A Logic “0” will put the circuit in "Hold" mode. For the values shown, Acquisition Time to 0.1% is typically 10µs for a zero to 4 volt input, the hold step is typically 400µV, and the droop rate at 85°C is 0.1µV/µs. Overall accuracy is better than 0.01%. For minimum droop, C1 should be of polystyrene construction. Figure 3 Figure 4 © 2000 California Micro Devices Corp. All rights reserved. 5/00 215 Topaz Street, Milpitas, California 95035 Tel: (408) 263-3214 Fax: (408) 263-7846 www.calmicro.com 11 CMV1016 CALIFORNIA MICRO DEVICES The circuit illustrated in Figure 5 provides a simple analog switch capable of operating from supply voltages as low as 2.2 volts. The circuit takes advantage of the CMV1016’s shutdown feature which places the output stage in a high impedance mode. The outputs are simply "wire OR’d", and as configured, a Logic "1" (Logic In voltage > V+ – 1 volt), VIN2 is selected. Figure 5 ©2000 California Micro Devices Corp. All rights reserved. 12 215 Topaz Street, Milpitas, California 95035 Tel: (408) 263-3214 Fax: (408) 263-7846 www.calmicro.com 5/00