OPA2338UA

® OPA 337 OPA 233 7 OPA 233 8 For most current data sheet and other product information, visit www.burr-brown.com OPA337 OPA2337 OPA338 OPA2338 MicroSIZE, Single-Supply CMOS OPERATIONAL AMPLIFIERS MicroAmplifier ™ Series FEATURES q MicroSIZE PACKAGES: SOT23-5 SOT23-8 q SINGLE-SUPPLY OPERATION q RAIL-TO-RAIL OUTPUT SWING q FET-INPUT: IB = 10pA max q HIGH SPEED: OPA337: 3MHz, 1.2V/µs (G = 1) OPA338: 12.5MHz, 4.6V/µs (G = 5) q OPERATION FROM 2.5V to 5.5V q HIGH OPEN-LOOP GAIN: 120dB q LOW QUIESCENT CURRENT: 525µA/amp q SINGLE AND DUAL VERSIONS DESCRIPTION The OPA337 and OPA338 series rail-to-rail output CMOS operational amplifiers are designed for low cost and miniature applications. Packaged in the new SOT23-8, the OPA2337EA and OPA2338EA are Burr-Brown’s smallest dual op amps. At 1/4 the size of a conventional SO-8 surface mount, they are ideal for space-sensitive applications. Utilizing advanced CMOS technology, OPA337 and OPA338 op amps provide low bias current, high-speed operation, high open-loop gain, and rail-to-rail output swing. They operate on a single supply with operation as low as 2.5V while drawing only 525µA quiescent current. In addition, the input common-mode voltage range includes ground—ideal for single-supply operation. The OPA337 series is unity-gain stable. The OPA338 series is optimized for gains greater than or equal to five. They are easy to use and free from phase inversion and overload problems found in some other op amps. Excellent performance is maintained as the amplifiers swing to their specified limits. The dual versions feature completely independent circuitry for lowest crosstalk and freedom from interaction, even when overdriven or overloaded. G = 1 STABLE PACKAGE SOT23-5 SOT23-8 MSOP-8 SO-8 SINGLE OPA337 DUAL OPA2337 G ≥ 5 STABLE SINGLE OPA338 DUAL OPA2338 APPLICATIONS q q q q q q q BATTERY-POWERED INSTRUMENTS PHOTODIODE PRE-AMPS MEDICAL INSTRUMENTS TEST EQUIPMENT AUDIO SYSTEMS DRIVING ADCs CONSUMER PRODUCTS SPICE Model available at www.burr-brown.com OPA337, OPA338 NC –In +In V– 1 2 3 4 8 7 6 5 NC V+ Out 1 5 V+ DIP-8 OPA337, OPA338 OPA2337, OPA2338 Out A –In A 4 –In 1 2 3 4 A B 8 7 6 5 V+ Out B –In B +In B Output V– 2 NC +In 3 +In A V– 8-Pin DIP(1), SO-8, MSOP-8(1) SOT23-5 NOTE: (1) DIP AND MSOP-8 versions for OPA337, OPA2337 only. 8-Pin DIP(1), SO-8, SOT23-8 International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 Twx: 910-952-1111 • Internet: http://www.burr-brown.com/ • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132 © 1997 Burr-Brown Corporation PDS-1410C PDS-1410D 1 OPA337, OPA2337 Printed in U.S.A. OPA338, OPA2338 June, 2000 ® SPECIFICATIONS: VS = 2.7V to 5.5V At TA = +25°C, and RL = 25kΩ connected to VS/2, unless otherwise noted. Boldface limits apply over the specified temperature range, –40°C to +85°C, VS = 5V. OPA337NA, EA, UA, PA OPA2337EA, UA, PA OPA338NA, UA OPA2338EA, UA PARAMETER OFFSET VOLTAGE Input Offset Voltage TA = –40°C to +85°C vs Temperature vs Power Supply Rejection Ratio TA = –40°C to +85°C Channel Separation (dual versions) INPUT BIAS CURRENT Input Bias Current TA = –40°C to +85°C Input Offset Current NOISE Input Voltage Noise, f = 0.1Hz to 10Hz Input Voltage Noise Density, f = 1kHz Current Noise Density, f = 1kHz INPUT VOLTAGE RANGE Common-Mode Voltage Range Common-Mode Rejection Ratio TA = –40°C to +85°C INPUT IMPEDANCE Differential Common-Mode OPEN-LOOP GAIN Open-Loop Voltage Gain TA = –40°C to +85°C TA = –40°C to +85°C OPA337 FREQUENCY RESPONSE Gain-Bandwidth Product GBW Slew Rate SR Settling Time: 0.1% 0.01% Overload Recovery Time Total Harmonic Distortion + Noise THD+N OPA338 FREQUENCY RESPONSE Gain-Bandwidth Product GBW Slew Rate SR Settling Time: 0.1% 0.01% Overload Recovery Time Total Harmonic Distortion + Noise THD+N OUTPUT Voltage Output Swing from Rail(2) TA = –40°C to +85°C TA = –40°C to +85°C Short-Circuit Current Capacitive Load Drive POWER SUPPLY Specified Voltage Range Minimum Operating Voltage Quiescent Current (per amplifier) TA = –40°C to +85°C AOL RL = 25kΩ, 125mV < VO < (V+) – 125mV RL = 25kΩ, 125mV < VO < (V+) – 125mV RL = 5kΩ, 500mV < VO < (V+) – 500mV RL = 5kΩ, 500mV < VO < (V+) – 500mV VS = 5V, G = 1 VS = 5V, G = 1 VS = 5V, 2V Step, CL = 100pF, G = 1 VS = 5V, 2V Step, CL = 100pF, G = 1 VIN • G = VS VS = 5V, VO = 3Vp-p, G = 1, f = 1kHz VS = 5V, G = 5 VS = 5V, G = 5 VS = 5V, 2V Step, CL = 100pF, G = 5 VS = 5V, 2V Step, CL = 100pF, G = 5 VIN • G = VS VS = 5V, VO = 3Vp-p, G = 5, f = 1kHz RL = 25kΩ, AOL ≥ 100dB RL = 25kΩ, AOL ≥ 100dB RL = 5kΩ, AOL ≥ 100dB RL = 5kΩ, AOL ≥ 100dB ISC CLOAD VS IQ TA = –40°C to +85°C IO = 0 IO = 0 2.7 2.5 0.525 100 100 100 100 CONDITION MIN TYP(1) ± 0.5 ±2 25 0.3 ± 0.2 See Typical Curve ± 0.2 6 26 0.6 TA = –40°C to +85°C –0.2V < VCM < (V+) – 1.2V –0.2V < VCM < (V+) – 1.2V –0.2 74 74 (V+) – 1.2 90 ± 10 ± 10 MAX ±3 UNITS VOS dVOS/dT PSRR ±3.5 125 125 VS = 2.7V to 5.5V VS = 2.7V to 5.5V dc mV mV µV/°C µV/V µV/V µV/V pA pA µVp-p nV/√Hz fA/√Hz V dB dB Ω || pF Ω || pF dB dB dB dB MHz V/µs µs µs µs % MHz V/µs µs µs µs % IB IOS en in VCM CMRR 1013 || 2 1013 || 4 120 114 3 1.2 2 2.5 2 0.001 12.5 4.6 1.4 1.9 0.5 0.0035 40 150 ±9 See Typical Curve 5.5 1 1.2 125 125 500 500 mV mV mV mV mA V V mA mA 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. ® OPA337, OPA2337 OPA338, OPA2338 2 SPECIFICATIONS: VS = 2.7V to 5.5V At TA = +25°C, and RL = 25kΩ connected to VS/2, unless otherwise noted. Boldface limits apply over the specified temperature range, –40°C to +85°C, VS = 5V. (Cont.) OPA337NA, EA, UA, PA OPA2337EA, UA, PA OPA338NA, UA OPA2338EA, UA PARAMETER TEMPERATURE RANGE Specified Range Operating Range Storage Range Thermal Resistance SOT23-5 Surface Mount SOT23-8 Surface Mount MSOP-8 SO-8 Surface Mount 8-Pin DIP CONDITION MIN TYP MAX UNITS °C °C °C °C/W °C/W °C/W °C/W °C/W –40 –55 –55 +85 +125 +125 200 200 150 150 100 θJA NOTES: (1) VS = 5V. (2) Output voltage swings are measured between the output and negative and positive power supply rails. ABSOLUTE MAXIMUM RATINGS(1) Supply Voltage ................................................................................... 5.5V Input Voltage(2) .................................................. (V–) –0.5V to (V+) +0.5V Input Current(2) ................................................................................. 10mA Output Short Circuit(3) .............................................................. Continuous Operating Temperature .................................................. –55°C to +125°C Storage Temperature ..................................................... –55°C to +125°C Junction Temperature ...................................................................... 150°C Lead Temperature (soldering, 10s) ................................................. 300°C NOTES: (1) Stresses above these ratings may cause permanent damage. Exposure to absolute maximum ratings for extended periods may degrade device reliability. (2) Input signal voltage is limited by internal diodes connected to power supplies. See text. (3) Short circuit to ground, one amplifier per package. ELECTROSTATIC DISCHARGE SENSITIVITY This integrated circuit can be damaged by ESD. Burr-Brown recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. PACKAGE/ORDERING INFORMATION PACKAGE DRAWING NUMBER SPECIFIED TEMPERATURE RANGE –40°C to +85°C –40°C to +85°C –40°C to +85°C –40°C to +85°C PACKAGE MARKING ORDERING NUMBER(1) TRANSPORT MEDIA PRODUCT OPA337 Series OPA337NA DESCRIPTION PACKAGE Single, G = 1 Stable 5-Lead SOT23-5 331 C37 " OPA337EA " Single, G = 1 Stable " MSOP-8 " 337 " " " " G37 " OPA337PA OPA337UA " Single, G = 1 Stable Single, G = 1 Stable " 8-Pin DIP SO-8 Surface Mount " 006 182 " OPA337PA OPA337UA " OPA2337EA " Dual, G = 1 Stable " 8-Lead SOT23-8 " 348 " A7 OPA337NA/250 OPA337NA/3K OPA337EA/250 OPA337EA/2K5 OPA337PA OPA337UA OPA337UA/2K5 OPA2337EA/250 OPA2337EA/3K OPA2337PA OPA2337UA OPA2337UA/2K5 OPA338NA/250 OPA338NA/3K OPA338UA OPA338UA/2K5 OPA2338EA/250 OPA2338EA/3K OPA2338UA OPA2338UA/2K5 Tape and Reel Tape and Reel Tape and Reel Tape and Reel Rails Rails Tape and Reel Tape and Reel Tape and Reel Rails Rails Tape and Reel Tape and Reel Tape and Reel Rails Tape and Reel Tape and Reel Tape and Reel Rails Tape and Reel –40°C to +85°C " OPA2337PA OPA2337UA " Dual, G = 1 Stable Dual, G = 1 Stable " 8-Pin DIP SO-8 Surface Mount " 006 182 " –40°C to +85°C –40°C to +85°C " OPA2337PA OPA2337UA " OPA338 Series OPA338NA " Single, G ≥ 5 Stable " 5-Lead SOT23-5 " 331 " –40°C to +85°C –40°C to +85°C " A38 " OPA338UA Single, G ≥ 5 Stable SO-8 Surface Mount " " " " " 182 " " " OPA338UA " OPA2338EA " 348 " A8 Dual, G ≥ 5 Stable Dual, G ≥ 5 Stable 8-Lead SOT23-8 –40°C to +85°C " OPA2338UA " " " SO-8 Surface Mount " 182 " –40°C to +85°C " OPA2338UA " " " " " NOTES: (1) Models with a slash (/) are available only in Tape and Reel in the quantities indicated (e.g., /2K5 indicates 2500 devices per reel). Ordering 2500 pieces of “OPA2337UA/2K5” will get a single 2500-piece Tape and Reel. 3 OPA337, OPA2337 OPA338, OPA2338 ® TYPICAL PERFORMANCE CURVES At TA = +25°C, VS = +5V, and RL = 25kΩ connected to VS/2, unless otherwise noted. OPEN-LOOP GAIN/PHASE vs FREQUENCY 160 140 Open-Loop Gain (dB) POWER SUPPLY REJECTION RATIO AND COMMON-MODE REJECTION RATIO vs FREQUENCY 0 OPA337 OPA338 –45 PSRR, CMRR (dB) Phase (°) 100 90 80 70 60 50 40 30 CMRR +PSRR –PSRR 120 100 80 60 40 20 0 –20 1 10 100 1k 10k 100k 1M φ –90 G –135 –180 20 10 1 10 100 1k 10k 100k 1M 10M 10M Frequency (Hz) Frequency (Hz) INPUT VOLTAGE AND CURRENT NOISE SPECTRAL DENSITY vs FREQUENCY 1k Voltage Noise 1k CHANNEL SEPARATION vs FREQUENCY 140 130 120 110 100 90 Voltage Noise (nV√Hz) 100 10 10 1 Current Noise 0.1 1 10 100 1k Frequency (Hz) 10k 100k 1M 1 Current Noise (fA√Hz) 100 Channel Separation (dB) Dual Versions 0.1 80 100 1k 10k Frequency (Hz) 100k 1M INPUT BIAS CURRENT vs TEMPERATURE 100 INPUT BIAS CURRENT vs INPUT COMMON-MODE VOLTAGE 0.5 0.4 Input Bias Current (pA) Input Bias Current (pA) 10 0.3 0.2 0.1 0 1 0.1 0.01 –75 –50 –25 0 25 50 75 100 125 Temperature (°C) –0.1 –1 0 1 2 3 4 5 Common-Mode Voltage (V) ® OPA337, OPA2337 OPA338, OPA2338 4 TYPICAL PERFORMANCE CURVES (Cont.) At TA = +25°C, VS = +5V, and RL = 25kΩ connected to VS/2, unless otherwise noted. AOL, CMRR, PSRR vs TEMPERATURE 140 130 AOL AOL, CMRR (dB) PSRR (dB) QUIESCENT CURRENT AND SHORT-CIRCUIT CURRENT vs TEMPERATURE 130 120 Quiescent Current (µA) 600 550 500 450 +ISC 400 350 300 –75 –50 –25 0 25 50 75 100 Temperature (°C) –ISC IQ 12 11 10 9 8 7 6 125 Short-Circuit Current (mA) ® 120 110 100 90 CMRR 80 –75 –50 –25 0 25 50 75 100 Temperature (°C) 110 100 90 80 70 125 PSRR QUIESCENT AND SHORT-CIRCUIT CURRENT vs SUPPLY VOLTAGE 700 650 ±12 ±10 ±8 +ISC ±6 ±4 IQ ±2 0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 Supply Voltage (V) 6 5 MAXIMUM OUTPUT VOLTAGE vs FREQUENCY Maximum output voltage without slew rate-induced distortion. Short-Circuit Current (mA) Quiescent Current (µA) Output Voltage (Vp-p) 600 550 500 450 400 4 3 OPA337 2 1 0 10k OPA338 –ISC 100k 1M Frequency (Hz) 10M 100M TOTAL HARMONIC DISTORTION + NOISE vs FREQUENCY 0.1 OUTPUT VOLTAGE SWING vs OUTPUT CURRENT 2.5 2.0 1.5 Output Voltage (V) VS = ±2.5V RL Tied to Ground Sourcing –55°C THD+N (%) 0.01 G = +10, RL = 5kΩ, 25kΩ G = +5, RL = 5kΩ, 25kΩ G = +1 RL = 5kΩ RL = 25kΩ 1.0 0.5 0 –0.5 –1.0 –1.5 –2.0 –2.5 0 Sinking 25°C 125°C 0.001 –55°C OPA337 OPA338 0.0001 20 100 1k Frequency (Hz) VO = 3Vp-p 10k 20k ±1 ±2 ±3 ±4 ±5 ±6 ±7 ±8 Output Current (mA) 5 OPA337, OPA2337 OPA338, OPA2338 TYPICAL PERFORMANCE CURVES (Cont.) At TA = +25°C, VS = +5V, and RL = 25kΩ connected to VS/2, unless otherwise noted. OFFSET VOLTAGE PRODUCTION DISTRIBUTION 25 Typical distribution of packaged units. Percent of Amplifiers (%) Percent of Amplifiers (%) 30 25 20 15 10 5 0 OFFSET VOLTAGE DRIFT PRODUCTION DISTRIBUTION Typical distribution of packaged units 20 15 10 5 0 –3.0 –2.5 –2.0 –1.5 –1.0 –0.5 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 Offset Voltage Drift (µV/°C) Offset Voltage (mV) SETTLING TIME vs CLOSED-LOOP GAIN 100 60 50 Overshoot (%) SMALL-SIGNAL OVERSHOOT vs LOAD CAPACITANCE 0.01% Settling Time (µs) 40 30 20 10 OPA338 (G = ±5) OPA337 (G = ±1) 10 OPA337 OPA338 OPA337 (G = ±10) OPA338 (G = ±50) 10 100 1k 10k 0.1% 1 1 10 100 1k Closed-Loop Gain (V/V) 0 Load Capacitance (pF) SMALL-SIGNAL STEP RESPONSE C L = 100pF, VS = +5V LARGE-SIGNAL STEP RESPONSE CL = 100pF, VS = +5V OPA337 G=1 500mV/div 50mV/div OPA338 G=5 OPA337 G=1 OPA338 G=5 1µs/div 2µs/div ® OPA337, OPA2337 OPA338, OPA2338 6 APPLICATIONS INFORMATION The OPA337 series and OPA338 series are fabricated on a state-of-the-art CMOS process. The OPA337 series is unitygain stable. The OPA338 series is optimized for gains greater than or equal to five. Both are suitable for a wide range of general purpose applications. Power supply pins should be bypassed with 0.01µF ceramic capacitors. OPERATING VOLTAGE The OPA337 series and OPA338 series can operate from a +2.5V to +5.5V single supply with excellent performance. Unlike most op amps which are specified at only one supply voltage, these op amps are specified for real-world applications; a single limit applies throughout the +2.7V to +5.5V supply range. This allows a designer to have the same assured performance at any supply voltage within the specified voltage range. Most behavior remains unchanged throughout the full operating voltage range. Parameters which vary significantly with operating voltage are shown in typical performance curves. +5V IOVERLOAD 10mA max VIN 5kΩ OPA337 VOUT FIGURE 2. Input Current Protection for Voltages Exceeding the Supply Voltage. USING THE OPA338 IN LOW GAINS The OPA338 series is optimized for gains greater than or equal to five. It has significantly wider bandwidth (12.5MHz) and faster slew rate (4.6V/µs) when compared to the OPA337 series. The OPA338 series can be used in lower gain configurations at low frequencies while maintaining its high slew rate with the proper compensation. Figure 3 shows the OPA338 in a unity-gain buffer configuration. At dc, the compensation capacitor C1 is effectively “open” resulting in 100% feedback (closed-loop gain = 1). As frequency increases, C1 becomes lower impedance and closed-loop gain increases, eventually becoming 1 + R2/R1 (in this case five, which is equal to the minimum gain required for stability). The required compensation capacitor value can be determined from the following equation: C1 = 1/(2πfCR1) Since fC may shift with process variations, it is recommended that a value less than fC be used for determining C1. With fC = 1MHz and R1 = 2.5kΩ, the compensation capacitor is about 68pF. The selection of the compensation capacitor C1 is important. A proper value ensures that the closed-loop circuit gain is greater than or equal to five at high frequencies. Referring to the “Open-Loop Gain vs Frequency” plot in the Typical Performance Curves section, the OPA338 gain line (dashed in the curve) has a constant slope (–20dB/decade) up to approximately 3MHz. This frequency is referred to as fC. Beyond fC the slope of the curve increases, suggesting that closed-loop gains less than 5 are not appropriate. OPA337, VIN = ±3V Greater Than VS = ±2.5V VOUT, G = –1 (not limited by input commonmode range.) 3V 0 G = ±1 VOUT, G = +1 (limited by input common-mode range) –3V FIGURE 1. OPA337—No Phase Inversion with Inputs Greater than the Power Supply Voltage. INPUT VOLTAGE The input common-mode range extends from (V–) – 0.2V to (V+) – 1.2V. For normal operation, inputs should be limited to this range. The absolute maximum input voltage is 500mV beyond the supplies. Inputs greater than the input common-mode range but less than maximum input voltage, while not valid, will not cause any damage to the op amp. Furthermore, if input current is limited the inputs may go beyond the power supplies without phase inversion (Figure 1) unlike some other op amps. Normally, input currents are 0.2pA. However, large inputs (greater than 500mV beyond the supply rails) can cause excessive current to flow in or out of the input pins. Therefore, as well as keeping the input voltage below the maximum rating, it is also important to limit the input current to less than 10mA. This is easily accomplished with an input resistor as shown in Figure 2. Improved slew rate (4.6V/µs) versus OPA337 (1.2V/µs) in unity gain. R2 10kΩ R1 2.5kΩ C1 68pF VIN C1 = 1 2πfCR1 OPA338 VOUT Where fC is the frequency at which closed-loop gains less than five are not appropriate—see text. FIGURE 3. Compensation of OPA338 for Unity-Gain Buffer. 7 OPA337, OPA2337 OPA338, OPA2338 ® Figure 4 shows a compensation technique using an inverting configuration. The low frequency gain is set by the resistor ratio while the high frequency gain is set by the capacitor ratio. As with the noninverting circuit, for frequencies above fC the gain must be greater than the recommended minimum stable gain for the op amp. The capacitor values shown are the nearest standard values. Capacitor values may need to be adjusted slightly to optimize performance. For more detailed information, consult the OPA686 product data sheet. Figure 5 shows the large-signal transient response using the circuit given in Figure 4. As shown, the OPA338 is stable in low gain applications and provides improved slew rate performance when compared to the OPA337. Improved slew rate versus OPA337 (see Figure 5). C2 15pF R1 5kΩ VIN C1 150pF R2 10kΩ OPA338 500mV/div OPA338 VOUT OPA337 C2 = 1 2πfCR2 , C1 = (GH –1) • C2 2µs/div Where GH is the high frequency gain, GH = 1 + C1/C2 FIGURE 5. G = 2, Slew-Rate Comparison of OPA338 and OPA337. FIGURE 4. Inverting Compensation Circuit of OPA338 for Low Gain. Resistors R1 and R2 are chosen to set the desired dc signal gain. Then the value for C2 is determined as follows: C2 = 1/(2πfCR2) C1 is determined from the desired high frequency gain (GH): C1 = (GH – 1) • C2 For a desired dc gain of 2 and high frequency gain of 10, the following resistor and capacitor values result: R1 = 10kΩ R2 = 5kΩ C1 = 150pF C2 = 15pF TYPICAL APPLICATION Figure 6 shows the OPA2337 in a typical application. The ADS7822 is a 12-bit, micro-power sampling analog-todigital converter available in the tiny MSOP-8 package. As with the OPA2337, it operates with a supply voltage as low as +2.7V. When used with the miniature SOT23-8 package of the OPA2337, the circuit is ideal for spacelimited and low power applications. In addition, OPA2337’s high input impedance allows large value resistors to be used which results in small physical capacitors, further reducing circuit size. For further information, consult the ADS7822 product data sheet. ® OPA337, OPA2337 OPA338, OPA2338 8 Passband 300Hz to 3kHz V+ = +2.7V to 5V R9 510kΩ R1 1.5kΩ R2 1MΩ C1 1000pF Electret Microphone(1) R3 1MΩ R4 20kΩ C3 R7 51kΩ R8 150kΩ 33pF 1/2 OPA2337E C2 1000pF VREF 1 +IN 2 –IN 3 NOTE: (1) Electret microphone with internal transistor (FET) powered by R1. V+ 8 DCLOCK 7D OUT 6 5 GND 4 CS/SHDN Serial Interface 1/2 OPA2337E R6 100kΩ ADS7822 12-Bit A/D R5 20kΩ G = 100 FIGURE 6. Low Power, Single-Supply, Speech Bandpass Filtered Data Acquisition System. SOT23-5 (Package Drawing #331) 0.075 (1.905) SOT23-8 (Package Drawing #348) 0.027 (0.686) 0.035 (0.889) 0.10 (2.54) 0.035 (0.889) 0.0375 (0.9525) 0.0375 (0.9525) 0.018 (0.457) 0.026 (0.66) Refer to end of data sheet or Appendix C of Burr-Brown IC Data Book for tolerances and detailed package drawing. For further information on solder pads for surface-mount packages, consult Application Bulletin AB-132. FIGURE 7. Recommended SOT23-5 and SOT23-8 Solder Footprints. 9 OPA337, OPA2337 OPA338, OPA2338 0.10 (2.54) ®