® OPA606 Wide-Bandwidth Difet ® OPERATIONAL AMPLIFIER FEATURES APPLICATIONS ● WIDE BANDWIDTH: 13MHz typ ● OPTOELECTRONICS ● HIGH SLEW RATE: 35V/µs typ ● LOW BIAS CURRENT: 10pA max at TA = +25°C ● LOW OFFSET VOLTAGE: 500µV max ● LOW DISTORTION: 0.0035% typ at 10kHz ● DATA ACQUISITION ● TEST EQUIPMENT ● AUDIO AMPLIFIERS DESCRIPTION The OPA606 is a wide-bandwidth monolithic dielectrically-isolated FET (Difet®) operational amplifier featuring a wider bandwidth and lower bias current than BIFET® LF156A amplifiers. Bias current is specified under warmed-up and operating conditions, as opposed to a junction temperature of +25°C. 1 Trim Laser-trimmed thin-film resistors offer improved offset voltage and noise performance. The OPA606 is internally compensated for unity-gain stability. 7 5 Trim +VCC 2 –In 3 +In 6 Simplified Circuit 4 VOUT –VCC Difet®; Burr-Brown Corp. BIFET®; National Semiconductor Corp. International Airport Industrial Park • Mailing Address: PO Box 11400 Tel: (520) 746-1111 • Twx: 910-952-1111 • Cable: BBRCORP • • Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd. • Tucson, AZ 85706 Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132 © PDS-598D 1985 Burr-Brown Corporation Printed in U.S.A. July, 1995 SPECIFICATIONS ELECTRICAL At VCC = ±15VDC and TA = +25°C unless otherwise noted. OPA606KM PARAMETER FREQUENCY RESPONSE Gain Bandwidth Full Power Response Slew Rate Settling Time(1): 0.1% 0.01% Total Harmonic Distortion INPUT OFFSET VOLTAGE(2) Input Offset Voltage Average Drift Supply Rejection CONDITIONS MIN TYP Small Signal 20Vp-p, RL = 2kΩ VO = ±10V, RL = 2kΩ Gain = –1, RL = 2kΩ 10V Step G = +1, 20Vp-p RL = 2kΩ f = 10kHz 10 12.5 515 33 VCM = 0VDC TA = TMIN to TMAX VCC = ±10V to ±18V 22 82 OPA606LM MAX MIN TYP 11 13 550 35 25 OPA606KP MAX MIN TYP 9 12 470 30 MHz kHz V/µs 20 MAX UNITS 1.0 1.0 1.0 µs 2.1 0.0035 2.1 0.0035 2.1 0.0035 µs % ±180 ±5 100 ±10 ±1.5mV ±500 ±5 ±79 ±100 ±3 104 ±6 90 ±3mV ±32 ±300 ±10 90 ±32 ±100 µV µV/°C dB µV/V 80 BIAS CURRENT(2) Input Bias Current VCM = 0VDC ±7 ±15 ±5 ±10 ±8 ±25 pA OFFSET CURRENT(2) Input Offset Current VCM = 0VDC ±0.6 ±10 ±0.4 ±5 ±1 ±15 pA 100% tested (L) 100% tested (L) 100% tested (L) 37 21 14 12 11 1.3 1.5 30 20 13 11 10.5 1.2 1.3 40 28 16 13 13 1.5 2 37 21 14 12 11 1.3 1.7 nV/√Hz nV/√Hz nV/√Hz nV/√Hz nV/√Hz µVrms fA/√Hz 1013 || 1 1014 || 3 1013 || 1 1014 || 3 1013 || 1 1014 || 3 Ω || pF Ω || pF NOISE Voltage, fO = 10Hz 100Hz 1kHz 10kHz 20kHz fB = 10Hz to 10kHz Current, fO = 0.1Hz thru 20kHz (3) (3) (3) (3) IMPEDANCE Differential Common-Mode VOLTAGE RANGE Common-Mode Input Range Common-Mode Rejection OPEN-LOOP GAIN, DC Open-Loop Voltage Gain RATED OUTPUT Voltage Output Current Output Output Resistance Load Capacitance Stability Short Circuit Current Operating θJA ±10.5 80 ±11.5 95 ±11 85 ±11.6 96 ±10.2 78 ±11 90 V dB RL ≥ 2kΩ 95 115 100 118 90 110 dB RL = 2kΩ VO = ±10VDC DC, Open Loop Gain = +1 ±11 ±5 ±12.2 ±10 40 1000 20 ±12 ±5 ±12.6 ±10 40 1000 20 ±11 ±5 ±12 ±10 40 1000 20 V mA Ω pF mA ±15 VDC 10 POWER SUPPLY Rated Voltage Voltage Range, Derated Performance Current, Quiescent TEMPERATURE RANGE Specification VIN = ±10VDC 10 ±15 ±5 IO = 0mADC Ambient Temperature KM, KP, LM Ambient Temperature 6.5 0 –55 10 ±15 ±18 9.5 ±5 +70 +125 0 –55 200 6.2 200 ±18 9 ±5 +70 +125 0 –40 6.5 155 ±18 10 VDC mA +70 +85 °C °C °C/W NOTES: (1) See settling time test circuit in Figure 2. (2) Offset voltage, offset current, and bias current are measured with the units fully warmed up. (3) Sample tested–this parameter is guaranteed on L grade only. ® OPA606 2 ELECTRICAL (FULL TEMPERATURE RANGE SPECIFICATIONS) At VCC = ±15VDC and TA = TMIN to TMAX unless otherwise noted. OPA606KM PARAMETER CONDITIONS MIN TEMPERATURE RANGE Specification Range Ambient Temp. 0 INPUT OFFSET VOLTAGE(1) Input Offset Voltage Average Drift Supply Rejection VCM = 0VDC VCC = ±10V to ±18V 80 TYP OPA606LM MAX MIN +70 0 ±400 ±5 98 ±13 ±2mV TYP OPA606KP MAX MIN +70 0 TYP ±750 ±5 ±100 ±335 ±3 100 ±10 ±56 ±750 ±10 95 ±18 85 78 MAX UNITS +70 °C ±3.5mV ±126 µV µV/°C dB µV/V BIAS CURRENT(1) Input Bias Current VCM = 0VDC ±158 ±339 ±113 ±226 ±181 ±566 pA OFFSET CURRENT(1) Input Offset Current VCM = 0VDC ±14 ±226 ±9 ±113 ±23 ±339 pA VOLTAGE RANGE Common-Mode Input Range Common-Mode Rejection VIN = ±10VDC ±10.4 78 ±11.4 92 ±10.9 82 ±11.5 95 ±10 75 ±10.9 88 V dB OPEN-LOOP GAIN, DC Open-Loop Voltage Gain RL ≥ 2kΩ 90 106 95 112 88 104 dB RATED OUTPUT Voltage Output Current Output RL = 2kΩ VO = ±10VDC ±10.5 ±5 ±12 ±10 ±11.5 ±5 ±12.4 ±10 ±10.4 ±5 ±11.8 ±10 V mA POWER SUPPLY Current, Quiescent IO = 0mADC 6.6 10 6.4 9.5 6.6 10.5 mA NOTES: (1) Offset voltage, offset current, and bias current are measured with the units fully warmed up. ABSOLUTE MAXIMUM RATINGS CONNECTION DIAGRAMS Supply Voltage .............................................................................. ±18VDC Internal Power Dissipation (1) ......................................................... 500mW Differential Input Voltage ............................................................... ±36VDC Input Voltage Range ..................................................................... ±18VDC Storage Temperature Range ................................... M = –65°C to +150°C P = –40°C to +85°C Operating Temperature Range ................................ M = –55°C to +125°C P = –40°C to +85°C Lead Temperature (soldering, 10s) ................................................ +300°C (3) Output Short-Circuit Duration ................................................ Continuous Junction Temperature .................................................................... +175°C Top View TO-99 NC 8 Offset Trim 1 –In 7 2 6 Output 3 NOTES: (1) Packages must be derated based on θJC = 15°C/W or θJA. (2) For supply voltages less than ±18VDC, the absolute maximum input voltage is equal to the negative supply voltage. (3) Short circuit may be to power supply common only. Rating applies to +25°C ambient. Observe dissipation limit and TJ. +VCC 5 +In Offset Trim 4 –VCC Case is connected to VCC. PACKAGE INFORMATION Top View MODEL PACKAGE PACKAGE DRAWING NUMBER(1) OPA606KM OPA606LM OPA606KP TO-99 TO-99 Plastic DIP 001 001 006 NOTE: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix D of Burr-Brown IC Data Book. DIP Offset Trim 1 8 NC –In 2 7 +VCC +In 3 6 Output –VCC 4 5 Offset Trim ORDERING INFORMATION MODEL PACKAGE TEMPERATURE RANGE OPA606KM OPA606LM OPA606KP TO-99 TO-99 Plastic DIP 0°C to 70°C 0°C to 70°C 0°C to 70°C ® 3 OPA606 DICE INFORMATION PAD FUNCTION 1 2 3 4 5 6 7 8 NC Offset Trim –In +In –VS Offset Trim Output +VS NC No Connection Substrate Bias: No Connection. MECHANICAL INFORMATION Die Size Die Thickness Min. Pad Size Backing Transistor Count OPA606 DIE TOPOGRAPHY MILS (0.001") MILLIMETERS 65 x 54 ±5 20 ±3 4x4 1.65 x 1.37 ±0.13 0.51 ±0.08 0.10 x 0.10 None 43 The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant any BURR-BROWN product for use in life support devices and/or systems. ® OPA606 4 TYPICAL PERFORMANCE CURVES TA = +25°C, VCC = ±15VDC unless otherwise noted. OPEN-LOOP FREQUENCY RESPONSE INPUT VOLTAGE NOISE SPECTRAL DENSITY 140 1k LM 120 80 θ –90 60 Gain 40 –135 Voltage Noise (nV/ √Hz) Voltage Gain (dB) 100 Phase Shift (degrees) –45 100 10 20 100 1k 10k 100k 1M 10M 100 1k 10k Frequency (Hz) BIAS AND OFFSET CURRENT vs TEMPERATURE BIAS AND OFFSET CURRENT vs INPUT COMMON-MODE VOLTAGE 1nA 1nA 100 100 IB 10 IOS 1 10 Bias Current (pA) 10nA Bias Current (pA) 10 Frequency (Hz) 10nA 100k 1nA 1nA 100 100 IB 10 10 I OS 1 0.1 –50 –25 0.1 125 Ambient Temperature (°C) POWER SUPPLY REJECTION vs FREQUENCY COMMON-MODE REJECTION vs FREQUENCY 25 50 75 100 –15 140 140 120 120 100 +VCC 80 –VCC 60 1 1 –5 0 5 Common-Mode Voltage (V) 0 Common-Mode Rejection (dB) Power Supply Rejection (dB) 1 –180 100M Offset Current (pA) 10 Offset Current (pA) 0 40 20 0 –10 10 15 100 80 60 40 20 0 10 100 1k 10k 100k 1M 10M 100M 10 Frequency (Hz) 100 1k 10k 100k 1M 10M 100M Frequency (Hz) ® 5 OPA606 TYPICAL PERFORMANCE CURVES (CONT) TA = +25°C, VCC = ±15V unless otherwise noted. GAIN-BANDWIDTH AND SLEW RATE vs SUPPLY VOLTAGE MAXIMUM UNDISTORTED OUTPUT VOLTAGE vs FREQUENCY 20 10 GBW 35 12 S/R 30 10 25 8 0 10k 100k 1M 0 10M 5 SUPPLY CURRENT vs TEMPERATURE 15 20 OPEN-LOOP GAIN vs TEMPERATURE 8 130 7 120 Voltage Gain (dB) 6 5 110 100 4 90 –75 –50 –25 0 25 50 75 100 –75 125 –50 –25 0 25 50 75 100 Ambient Temperature (°C) Ambient Temperature (°C) GAIN-BANDWIDTH AND SLEW RATE vs TEMPERATURE OPEN-LOOP GAIN AND SUPPLY CURRENT vs SUPPLY VOLTAGE 125 38 16 10 9 120 GBW S/R Slew Rate (V/µs) 34 12 Voltage Gain (dB) 36 14 8 7 110 6 32 10 5 100 30 8 –75 –50 –25 0 25 50 75 100 4 0 125 10 Supply Voltage (±VCC) Ambient Temperature (°C) ® OPA606 5 6 15 20 Supply Current (mA) Supply Current (mA) 10 Supply Voltage (±VCC) Frequency (Hz) Gain-Bandwidth (MHz) Slew Rate (V/µs) Gain-Bandwidth (MHz) Output Voltage (V p-p) 40 14 30 TYPICAL PERFORMANCE CURVES (CONT) TA = +25°C, VCC = ±15V unless otherwise noted. TOTAL HARMONIC DISTORTION vs FREQUENCY SETTLING TIME vs CLOSED-LOOP GAIN 10 Total Harmonic Distortion (%) 0.01 Settling Time (µs) 8 6 4 2 0 G = +1 VO = 7Vrms 0.008 0.006 0.004 0.002 Test Equipment Limit 0 1 10 100 1k 100 1k Closed-Loop Gain (V/V) 100k LARGE SIGNAL TRANSIENT RESPONSE SMALL SIGNAL TRANSIENT RESPONSE +15 +80 +40 Output Voltage (V) Output Voltage (mV) 10k Frequency (Hz) 0 0 +40 –15 –80 0 0.5 0 1 2.5 Time (µs) Time (µs) APPLICATIONS INFORMATION 5 +VCC (1) OFFSET VOLTAGE ADJUSTMENT The OPA606 offset voltage is laser-trimmed and will require no further trim for most applications. As with most amplifiers, externally trimming the remaining offset can change drift performance by about 0.5µV/°C for each millivolt of adjusted offset. Note that the trim (Figure 1) is similar to operational amplifiers such as LF156 and OP-16. The OPA606 can replace most other amplifiers by leaving the external null circuit unconnected. 7 2 3 NOTE: (1) 10kΩ to 1MΩ Trim Potentiometer (100kΩ Recommended) 100kΩ 1 5 OPA606 4 6 ±50mV Typical Trim Range –VCC FIGURE 1. Offset Voltage Trim. ® 7 OPA606 INPUT PROTECTION Static damage can cause subtle changes in amplifier input characteristics without necessarily destroying the device. In precision operational amplifiers (both bipolar and FET types), this may cause a noticeable degradation of offset voltage and drift. Static protection is recommended when handling any precision IC operational amplifier. If the input voltage exceeds the amplifier’s negative supply voltage, input current limiting must be used to prevent damage. Noninverting Buffer 2 2 6 OPA606 3 In 6 OPA606 Out 3 Out In TO-99 Bottom View Inverting In 4 5 2 6 OPA606 3 CIRCUIT LAYOUT 6 3 7 2 Out 8 1 Wideband amplifiers require good circuit layout techniques and adequate power supply bypassing. Short, direct connections and good high frequency bypass capacitors (ceramic or tantalum) will help avoid noise pickup or oscillation. Mini-DIP Bottom View BOARD LAYOUT FOR INPUT GUARDING Guard top and bottom of board. Alternate: use Teflon® standoff for sensitive input pins. GUARDING AND SHIELDING As in any situation where high impedances are involved, careful shielding is required to reduce “hum” pickup in input leads. If large feedback resistors are used, they should also be shielded along with the external input circuitry. Leakage currents across printed circuit boards can easily exceed the bias current of the OPA606. To avoid leakage problems, it is recommended that the signal input lead of the OPA606 be wired to a Teflon® standoff. If the OPA606 is to be soldered directly into a printed circuit board, utmost care must be used in planning the board layout. A “guard” pattern should completely surround the high impedance input leads and should be connected to a low impedance point which is at the signal input potential (see Figure 3). 1 8 Teflon® E. I. Du Pont de Nemours & Co. 7 2 6 3 4 5 FIGURE 3. Connection of Input Guard. APPLICATIONS CIRCUITS 10kΩ +15VDC 0.1µF 1kΩ 2 Input 3 BANDWIDTH > 1MHz TS ≈ 1.8µsec (0.01%) GAIN = –10V/V 7 6 OPA606 4 Output 0.1µF 0.1% –15VDC 2kΩ +15V FIGURE 4. Inverting Amplifier. +5V 0.1% 2 –5V 2kΩ 0.1% 5kΩ –15V 3 Summing Node 7 6 DUT 4 0.1% 2N4416 100pF 3kΩ +15VDC 0.1µF VOUT G = –1 2 5kΩ Scope 2N4416 +15V Input Bandwidth > 12MHz Gain = +1V/V RIN ≈ 1013Ω 2k Ω 6 OPA606 4 0.1µF –15VDC FIGURE 5. Noninverting Buffer. FIGURE 2. Settling Time Test Circuit. ® OPA606 3 7 8 Output 1MΩ 10kΩ C1 20pF +15V Current Input i 2 3 OPA606 6 4 1MΩ i 2 Output Voltage EO 7 3 Input Load R1 6 OPA606 100Ω EO = |i| R = 1V/µA Optimize response for particular load condition with C1 and R1. –15V 0 FIGURE 8. Isolating Load Capacitance from Buffer. 0 Differential Gain = 1 + (2 x 10kΩ)/RG 3 FIGURE 6. Absolute Value Current-to-Voltage Circuit. OPA606 2 6 10kΩ ≈ 0.2pF if necessary to prevent gain peaking 3 Metal-film resistors 150kΩ 150kΩ RG 2kΩ Differential Input Differential Output 10kΩ 150kΩ 2 +15V 0.01µF OPA606 3 1. Bandwidth ≈1.2MHz 2. Differential Gain = 11 3. Differential Output ≈ 50Vp-p 4. Differential Slew Rate ≈ 65V/µs 2 7 6 Pin Photodiode OPA606 Motorola 3 0.01µF MRD721 4 0.1µF –15V 10kΩ +15V 6 Output FIGURE 9. Differential Input/Differential Output Amplifier. 1. Circuit must be well shielded. 2. Stray capacitance is critical. 3. Bandwidth ≈ 1MHz 4. Output ≈ 22V/mW/cm2 FIGURE 7. High-Speed Photodetector. 49.9Ω 2.49kΩ Total Mid-band Gain = 40dB See: "Topology Considerations for RIAA Phono Preamplifiers". AES reprint #1719. October 1980, by Walter G. Jung 2 Moving Magnet Cartridge 3 OPA37EJ 6 G ≈ 51V/V 47.5kΩ 7.32kΩ G ≈ 20V/V 150pF (1) 3 0.1µF 2 OPA606 6 10µF Output 1.05kΩ 3.74kΩ 10kΩ 1. Load R and C per cartridge manufacturer's recommendations. 2. Use metal film resistors and plastic film capacitors. 3. Bypass ±VCC adequately. 0.3µF 200Ω FIGURE 10. Low Noise/Low Distortion RIAA Preamplifier. ® 9 OPA606