ISL55001 Features The ISL55001 is a high speed, low power, low cost monolithic operational amplifier. The ISL55001 is unity-gain stable and features a 300V/µs slew rate and 220MHz bandwidth while requiring only 9mA of supply current. • 220MHz -3dB Bandwidth The power supply operating range of the ISL55001 is from ±15V down to ±2.5V. For single-supply operation, the ISL55001 operates from 30V down to 5V. The ISL55001 also features an extremely wide output voltage swing of -12.75V/+13.4V with VS = ±15V and RL = 1kΩ. At a gain of +1, the ISL55001 has a -3dB bandwidth of 220MHz with a phase margin of 50°. Because of its conventional voltage-feedback topology, the ISL55001 allows the use of reactive or non-linear elements in its feedback network. This versatility combined with low cost and 140mA of output-current drive makes the ISL55001 an ideal choice for price-sensitive applications requiring low power and high speed. The ISL55001 is available in an 8 Ld SO package and specified for operation over the full -40°C to +85°C temperature range. PART MARKING PACKAGE (Pb-free) • Low Supply Current: 9mA @ VS = ±15V • Wide Supply Range: ±2.5V to ±15V Dual-Supply and 5V to 30V Single-Supply • High Slew Rate: 300V/µs • Fast Settling: 75ns to 0.1% for a 10V Step • Wide Output Voltage Swing: -12.75V/+13.6V with VS = ±15V, RL = 1kΩ • Low Cost, Enhanced Replacement for the EL2044 • Pb-free (RoHS compliant) Applications • Video Amplifiers • Single-supply Amplifiers • Active Filters/Integrators • High Speed Sample-and-Hold • High Speed Signal Processing • ADC/DAC Buffers • Pulse/RF Amplifiers • Pin Diode Receivers Ordering Information PART NUMBER • Unity-gain Stable • Log Amplifiers PKG. DWG. # ISL55001IBZ (Note 2) 55001 IBZ 8 Ld SO M8.15E ISL55001IBZ-T7 (Note 1, 2) 55001 IBZ 8 Ld SO M8.15E ISL55001IBZ-T13 55001 IBZ (Notes 1, 2) 8 Ld SO M8.15E • Photo Multiplier Amplifiers • Difference Amplifier Pin Configuration ISL55001 (8 LD SO) TOP VIEW NC 1 NOTES: 1. Please refer to TB347 for details on reel specifications. 2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD020. IN- 2 IN+ 3 VS- 4 8 NC + 7 VS+ 6 OUT 5 NC 3. For Moisture Sensitivity Level (MSL), please see device information page for ISL55001. For more information on MSL please see techbrief TB363. November 3, 2009 FN6200.3 1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2005, 2006, 2008, 2009. All Rights Reserved All other trademarks mentioned are the property of their respective owners. ISL55001 High Supply Voltage 220MHz Unity-Gain Stable Operational Amplifier ISL55001 Absolute Maximum Ratings (TA = +25°C) Thermal Information Supply Voltage (VS) . . . . . . . . . Input Voltage (VIN). . . . . . . . . . Differential Input Voltage (dVIN) ESD Rating Human Body Model . . . . . . . . Machine Model . . . . . . . . . . . Continuous Output Current . . . . . . . . . . . . . . . . . . . 60mA Power Dissipation (PD). . . . . . . . . . . . . . . . . . . . see Curves Operating Temperature Range (TA) . . . . . . . -40°C to +85°C Operating Junction Temperature (TJ) . . . . . . . . . . . . +150°C Storage Temperature (TST) . . . . . . . . . . . -65°C to +150°C Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . .see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp . . . . . . . . . ±16.5V or 33V . . . . . . . . . . . . . . . . . ±VS . . . . . . . . . . . . . . . . ±10V . . . . . . . . . . . . . . . . . 3kV . . . . . . . . . . . . . . . . 250V CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and result in failures not covered by warranty. DC Electrical Specifications VS = ±15V, RL = 1kΩ, TA = +25°C, unless otherwise specified. PARAMETER DESCRIPTION CONDITION MIN TYP MAX UNIT 0.06 3 mV VOS Input Offset Voltage TCVOS Average Offset Voltage Drift IB Input Bias Current 1.72 3.5 µA IOS Input Offset Current 0.27 1.5 µA TC-IOS Average Offset Current Drift (Note 4) AVOL Open-loop Gain PSRR Power Supply Rejection Ratio CMRR 18 µV/°C 0.8 nA/°C 10 17 kV/V VS = ±5V to ±15V 75 90 dB Common-mode Rejection Ratio VCM = ±10V, VOUT = 0V 70 90 dB CMIR Common-mode Input Range VS = ±15V ±14 V VOUT Output Voltage Swing VO+, RL = 1kΩ 13.25 13.5 V VO-, RL = 1kΩ -12.6 -12.8 V VO+, RL = 150Ω 10.7 11.5 V VO-, RL = 150Ω -8.8 -9.9 V 120 145 mA ISC Output Short Circuit Current IS Supply Current RIN Input Resistance CIN Input Capacitance ROUT PSOR VOUT = ±10V, RL = 1kΩ No load 8.3 2.0 9.25 mA 2.75 MΩ AV = +1 1 pF Output Resistance AV = +1 50 mΩ Power Supply Operating Range Dual supply Single supply ±2.25 ±15 V 4.5 30 V MAX UNIT NOTE: 4. Measured from TMIN to TMAX. AC Electrical SpecificationsVS = ±15V, AV = +1, RL = 1kΩ, unless otherwise specified. PARAMETER BW DESCRIPTION -3dB Bandwidth (VOUT = 0.4VP-P) CONDITION TYP AV = +1 220 MHz AV = -1 55 MHz AV = +2 53 MHz AV = +5 17 MHz 70 MHz 55 ° 280 V/µs GBWP Gain Bandwidth Product PM Phase Margin RL = 1kΩ, CL = 5pF SR Slew Rate (Note 5) RL = 100Ω 2 MIN 250 FN6200.3 November 3, 2009 ISL55001 AC Electrical SpecificationsVS = ±15V, AV = +1, RL = 1kΩ, unless otherwise specified. (Continued) PARAMETER DESCRIPTION CONDITION MIN TYP MAX UNIT FPBW Full-power Bandwidth (Note 6) VS = ±15V 9.5 MHz tS Settling to +0.1% (AV = +1) VS = ±15V, 10V step 75 ns dG Differential Gain (Note 7) NTSC/PAL 0.01 % dP Differential Phase NTSC/PAL 0.05 ° eN Input Noise Voltage 10kHz 12 nV/√H z iN Input Noise Current 10kHz 1.5 pA/√H z NOTES: 5. Slew rate is measured on rising edge. 6. For VS = ±15V, VOUT = 10VP-P, for VS = ±5V, VOUT = 5VP-P. Full-power bandwidth is based on slew rate measurement using FPBW = SR/(2π*VPEAK). 7. Video performance measured at VS = ±15V, AV = +2 with two times normal video level across RL = 150Ω. This corresponds to standard video levels across a back-terminated 75Ω load. For other values or RL, see “Typical Performance Curves” on page 4. 3 FN6200.3 November 3, 2009 ISL55001 Typical Performance Curves Vs=+/-15V = ±15V RVLS=1KΩ RL = 1kΩ Source Power=-20dBm SOURCE POWER = -20dBm VS = ±15V RL = 1kΩ SOURCE POWER = -20dBm FIGURE 1. OPEN-LOOP GAIN vs FREQUENCY VS = ±15V CL = 5pF SOURCE POWER = -20dBm FIGURE 2. OPEN-LOOP PHASE vs FREQUENCY VS = ±15V CL = 5pF SOURCE POWER = -20dBm RL = 1kΩ RL = 1kΩ RL = 500Ω RL = 500Ω RL = 150Ω RL = 150Ω RL = 75Ω RL = 75Ω RL = -50Ω RL = 50Ω FIGURE 3. FREQUENCY RESPONSE FOR VARIOUS RLOAD (AV = +1) CL = 82pF CL = 39pF FIGURE 4. FREQUENCY RESPONSE FOR VARIOUS RLOAD (AV = +2) VS = ±15V RL = 1kΩ SOURCE POWER = -20dBm CL = 82pF CL = 39pF CL = 10pF CL = 5pF CL = 10pF VS = ±15V RL = 1kΩ SOURCE POWER = -20dBm FIGURE 5. FREQUENCY RESPONSE FOR VARIOUS CLOAD (AV = +1) 4 CL = 5pF FIGURE 6. FREQUENCYRESPONSE FOR VARIOUS CLOAD (AV = +2) FN6200.3 November 3, 2009 ISL55001 Typical Performance Curves 270 360 VS = ±15V RF = 500Ω RL= 500Ω VS = ±15V 315 RF = 500Ω RL= 500Ω 270 90 AV = +1 PHASE (°) PHASE (°) 180 (Continued) 0 -90 90 GAIN BANDWIDTH PRODUCT (MHz) AV = -5 AV = -2 45 NOTE: FOR AV = +1, RF = 0 0 1M 10M FREQUENCY (Hz) 100M FIGURE 7. PHASE vs FREQUENCY FOR VARIOUS NON-INVERTING GAIN SETTINGS 100 135 AV = +2 100k AV = -1 180 AV = +5 -180 -270 225 100k 350 RL = 500Ω AV = +2 AV = +2 = 500Ω RF RF ==500Ω 500Ω R L 500Ω RL ==5pF C L CL = 5pF SLEW RATE (V/µs) 300 60 40 20 250 NEGATIVE SLEW RATE NEGATIVE SLEW RATE 200 100 0 6 3 9 12 15 0 3 SUPPLY VOLTAGES (±V) NORMALIZED GAIN (dB) NORMALIZED GAIN (dB) RF = 500Ω RF = 250Ω 1 RF = 100Ω -1 9 12 15 FIGURE 10. SLEW RATE vs SUPPLY 5 VS = ±15V AV = +1 RL = 500Ω CL = 5pF 6 SUPPLY VOLTAGES (±V) FIGURE 9. GAIN BANDWIDTH PRODUCT vs SUPPLY RF = 0Ω -3 -5 POSITIVE SLEW SLEW RATE POSITIVE RATE 150 0 3 100M FIGURE 8. PHASE vs FREQUENCY FOR VARIOUS INVERTING GAIN SETTINGS 80 5 1M 10M FREQUENCY (Hz) 3 VS = ±15V AV = +2 RL = 500Ω CL = 5pF = 1kΩ RFR=F 500Ω 1 -1 RF = 250Ω -3 RF = 100Ω -5 100k 1M 10M 100M FREQUENCY (Hz) FIGURE 11. GAIN vs FREQUENCY FOR VARIOUS RFEEDBACK (AV = +1) 5 100k 1M 10M 100M 100M FREQUENCY (Hz) FIGURE 12. GAIN vs FREQUENCY FOR VARIOUS RFEEDBACK (AV = +2) FN6200.3 November 3, 2009 ISL55001 Typical Performance Curves (Continued) 5 VS = ±15V AV = +2 R = 500Ω 3 RF = 500Ω L CL = 5pF CIN = 6.8pF CIN = 4.7pF 1 CIN = 2.2pF -1 CIN = 0pF -3 -5 AV = +1 RF = 0Ω RL = 500Ω CL = 5pF CIN = 10pF 100k 1M 10M 3 NORMALIZED GAIN (dB) NORMALIZED GAIN (dB) 5 1 VS = ±15V -1 VS = ±10V -3 -5 100k 100M 1M FREQUENCY (Hz) -10 VS = ±15V -30 -40 -40 -50 -60 -70 -60 -90 -90 10M 100M POS_PSRR -70 -80 1M NEG_PSRR -50 -80 100k VS = ±15V -20 -30 -100 10k -100 10k 100k THD 3rd HD 2nd HD 6 100M -30 VS = ±15V AV = +2 -40 RF = 500Ω RL = 500Ω -50 CL = 5pF FIN = 2MHz THD -60 -70 2nd HD 3rd HD -80 -90 -100 FIGURE 17. HARMONIC DISTORTION vs FREQUENCY (AV = +1) 10M FIGURE 16. POWER SUPPLY REJECTION RATIO (PSRR) HARMONIC DISTORTION (dBc) HARMONIC DISTORTION (dB) FIGURE 15. COMMON-MODE REJECTION RATIO (CMRR) 1M FREQUENCY (Hz) FREQUENCY (Hz) VS = ±15V RL = 500Ω VOUT = 2VP-P 1G FIGURE 14. GAIN vs FREQUENCY FOR VARIOUS SUPPLY SETTINGS PSRR (dB) CMRR (dB) -20 100M 10M FREQUENCY (Hz) FIGURE 13. GAIN vs FREQUENCY FOR VARIOUS INVERTING INPUT CAPACITANCE (CIN) -10 VS = ±2.5V VS = ±5V 0 2 4 6 8 10 12 14 16 18 20 22 24 26 OUTPUT VOLTAGE (V) FIGURE 18. HARMONIC DISTORTION vs OUTPUT VOLTAGE(AV = +2) FN6200.3 November 3, 2009 ISL55001 Typical Performance Curves (Continued) 25 VS = ±15V OUTPUT VOLTAGE SWING (VP-P) OUTPUT VOLTAGE SWING (V) 30 RL = 500Ω 25 CL = 5pF 20 AV = +1 RF = 0Ω 15 10 AV = +1 RF = 500Ω 5 0 1M 10M RL =R500Ω L = 500Ω CL =C5pF L = 5pF A +1 AV V == +1 20 AV = +2 A = +2 RF =V 500Ω RF = 500Ω 15 10 5 0 100M 0 FREQUENCY (Hz) 3 6 9 12 15 SUPPLY VOLTAGES (±V) FIGURE 19. OUTPUT SWING vs FREQUENCY FOR VARIOUS GAIN SETTINGS FIGURE 20. OUTPUT SWING vs SUPPLY VOLTAGE FOR VARIOUS GAIN SETTINGS VS = ±15V AV = +1 RF = 0Ω RL = 500Ω CL = 5pF VOUT = 4V tRISE = 2ns 20% to 80% tRISE = 8.4ns 20% to 80% tFALL = 7.2ns 80% to 20% FIGURE 21. LARGE SIGNAL RISE AND FALL TIMES FIGURE 22. SMALL SIGNAL RISE AND FALL TIMES JEDEC JESD51-7 HIGH EFFECTIVE THERMAL CONDUCTIVITY TEST BOARD 12.5 1.8 1.6 10.0 POWER DISSIPATION (W) TOTAL SUPPLY CURRENT (mA) tFALL = 2.2ns 80% to 20% VS = ±15V AV = +1 RF = 0Ω RL = 500Ω CL = 5pF VOUT = 400mV 75 5.0 AVV==+1+1 A RFF==0Ω 0Ω R R RLL==500Ω 500Ω C CLL==5pF 5pF 2.5 0 0 3 6 9 12 1.2 1.136W 1.0 0.8 SO8 θJA = +120°C/W 0.6 0.4 0.2 15 SUPPLY VOLTAGES (±V) FIGURE 23. SUPPLY CURRENT vs SUPPLY VOLTAGE 7 1.4 0 0 25 50 75 85 100 125 150 AMBIENT TEMPERATURE (°C) FIGURE 24. PACKAGE POWER DISSIPATION vs AMBIENT TEMPERATURE FN6200.3 November 3, 2009 ISL55001 Product Description The ISL55001 is a wide bandwidth, low power, and low offset voltage feedback operational amplifier. This device is internally compensated for closed loop gain of +1 or greater. Connected in voltage follower mode and driving a 500Ω load, the -3dB bandwidth is around a 220MHz. Driving a 150Ω load and a gain of 2, the bandwidth is about 90MHz while maintaining a 300V/µs slew rate. The ISL55001 is designed to operate with supply voltage from +15V to -15V. That means for single supply application, the supply voltage is from 0V to 30V. For split supplies application, the supply voltage is from ±15V. The amplifier has an input common-mode voltage range from 1.5V above the negative supply (VS- pin) to 1.5V below the positive supply (VS+ pin). If the input signal is outside the above specified range, it will cause the output signal to be distorted. The outputs of the ISL55001 can swing from -12.75V to +13.4V for VS = ±15V. As the load resistance becomes lower, the output swing is lower. Choice of Feedback Resistor and Gain Bandwidth Product For applications that require a gain of +1, no feedback resistor is required. Just short the output pin to the inverting input pin. For gains greater than +1, the feedback resistor forms a pole with the parasitic capacitance at the inverting input. As this pole becomes smaller, the amplifier's phase margin is reduced. This causes ringing in the time domain and peaking in the frequency domain. Therefore, RF can't be very big for optimum performance. If a large value of RF must be used, a small capacitor in the few Pico Farad range in parallel with RF can help to reduce the ringing and peaking at the expense of reducing the bandwidth. For gain of +1, RF = 0 is optimum. For the gains other than +1, optimum response is obtained with RF with proper selection of RF and RG (see Figures 15 and 16 for selection). Video Performance For good video performance, an amplifier is required to maintain the same output impedance and the same frequency response as DC levels are changed at the output. This is especially difficult when driving a standard video load of 150Ω, because of the change in output current with DC level. The dG and dP of this device is about 0.01% and 0.05°, while driving 150Ω at a gain of 2. Driving high impedance loads would give a similar or better dG and dP performance. Driving Capacitive Loads and Cables The ISL55001 can drive 47pF loads in parallel with 500Ω with less than 3dB of peaking at gain of +1 and as much as 100pF at a gain of +2 with under 3db of peaking. If less peaking is desired in applications, a small series resistor (usually between 5Ω to 50Ω) can be placed in series with the output to eliminate most peaking. However, this will reduce the gain slightly. If the gain 8 setting is greater than 1, the gain resistor RG can then be chosen to make up for any gain loss which may be created by the additional series resistor at the output. When used as a cable driver, double termination is always recommended for reflection-free performance. For those applications, a back-termination series resistor at the amplifier's output will isolate the amplifier from the cable and allow extensive capacitive drive. However, other applications may have high capacitive loads without a back-termination resistor. Again, a small series resistor at the output can help to reduce peaking. Output Drive Capability The ISL55001 does not have internal short circuit protection circuitry. It has a typical short circuit current of 140mA. If the output is shorted indefinitely, the power dissipation could easily overheat the die or the current could eventually compromise metal integrity. Maximum reliability is maintained if the output current never exceeds ±60mA. This limit is set by the design of the internal metal interconnect. Note that in transient applications, the part is robust. Short circuit protection can be provided externally with a back match resistor in series with the output placed close as possible to the output pin. In video applications this would be a 75Ω resistor and will provide adequate short circuit protection to the device. Care should still be taken not to stress the device with a short at the output. Power Dissipation With the high output drive capability of the ISL55001, it is possible to exceed the +150°C absolute maximum junction temperature under certain load current conditions. Therefore, it is important to calculate the maximum junction temperature for an application to determine if load conditions or package types need to be modified to assure operation of the amplifier in a safe operating area. The maximum power dissipation allowed in a package is determined according to Equation 1: T JMAX – T AMAX PD MAX = --------------------------------------------Θ JA (EQ. 1) Where: • TJMAX = Maximum junction temperature • TAMAX = Maximum ambient temperature • θJA = Thermal resistance of the package The maximum power dissipation actually produced by an IC is the total quiescent supply current times the total power supply voltage, plus the power in the IC due to the load, or: For sourcing use Equation 2: n PD MAX = (V S + – V S - ) × I SMAX + ∑ ( VS + i=1 V OUTi – V OUTi ) × -------------------R LOADi (EQ. 2) FN6200.3 November 3, 2009 ISL55001 For sinking use Equation 3: capacitor from VS+ to GND will suffice. This same capacitor combination should be placed at each supply pin to ground if split supplies are to be used. In this case, the VS- pin becomes the negative supply rail. n ∑ ( VOUTi – VS - ) × PD MAX = (V S + – V S - ) × I SMAX + i=1 V OUTi -------------------R LOADi (EQ. 3) Where: Printed Circuit Board Layout • ILOAD = Load current For good AC performance, parasitic capacitance should be kept to minimum. Use of wire wound resistors should be avoided because of their additional series inductance. Use of sockets should also be avoided if possible. Sockets add parasitic inductance and capacitance that can result in compromised performance. Minimizing parasitic capacitance at the amplifier's inverting input pin is very important. The feedback resistor should be placed very close to the inverting input pin. Strip line design techniques are recommended for the signal traces. • n = number of amplifiers (n = 1 for ISL55001) Application Circuits By setting the two PDMAX equations (Equations 1, 2 or 3) equal to each other, we can solve the output current and RLOAD to avoid the device overheat. Sallen-Key Low Pass Filter • VS+ = Positive supply voltage • VS- = Negative supply voltage • ISMAX = Maximum quiescent supply current • VOUT = Average output voltage of the application • RLOAD = Load resistance tied to ground Power Supply Bypassing Printed Circuit Board Layout As with any high frequency device, a good printed circuit board layout is necessary for optimum performance. Lead lengths should be as short as possible. The power supply pin must be well bypassed to reduce the risk of oscillation. For normal single supply operation, where the VS- pin is connected to the ground plane, a single 4.7µF tantalum capacitor in parallel with a 0.1µF ceramic 1kΩ C2 1nF 1 Q = (1 − K ) 1nF 1kΩ 1 R 1C 1 R 2 C 2 1nF C1 V1 Again this useful filter benefits from the characteristics of the ISL55001. The transfer function is very similar to the low pass so only the results are presented (see Figure 26). wo = C5 R2 Sallen-Key High Pass Filter Holp = K V2 5V R1 A common and easy to implement filter taking advantage of the wide bandwidth, low offset and low power demands of the ISL55001. A derivation of the transfer function is provided for convenience (see Figure 25). + V+ - V- VOUT R 1C 1 + R 2C 2 R 1C 2 + R 2C 1 R 2C 2 R 1C 1 R7 1kΩ RB RA 1kΩ 1kΩ C5 1nF V3 5V K 4−K 2 wo = RC 2 Q = 4−K Holp = FIGURE 25. SALLEN-KEY LOW PASS FILTER 9 FN6200.3 November 3, 2009 ISL55001 V2 5V Holp C5 wo = = K R 1nF R1 C1 V1 C2 1nF 1 C 1 R 2C 1kΩ R 1C 1 + R 2C 2 (1 − K ) + V+ - V- R 1C 2 + R 2C 1 R 2C 2 R 1C 1 VOUT R7 1kΩ Equations simplify if we let all components be equal R = C RB RA 1kΩ 2 1 Q = R2 1kΩ 1nF 1 K 4− K 2 wo = RC 2 Q = 4 − K Holp 1kΩ C5 1nF V3 5V = FIGURE 26. SALLEN-KEY HIGH PASS FILTER Differential Output Instrumentation Amplifier The addition of a third amplifier to the conventional three amplifier instrumentation amplifier introduces the benefits of differential signal realization, specifically the advantage of using common-mode rejection to remove e1 A1 + - R3 R3 A3 R2 + R3 R3 e2 + + R3 + R3 e o3 = – ( 1 + 2R 2 ⁄ R G ) ( e 1 – e 2 ) e o4 = ( 1 + 2R 2 ⁄ R G ) ( e 1 – e 2 ) e o = – 2 ( 1 + 2R 2 ⁄ R G ) ( e 1 – e 2 ) R3 A4 R2 A2 eo RE RG coupled noise and ground potential errors inherent in remote transmission. This configuration also provides enhanced bandwidth, wider output swing and faster slew rate than conventional three amplifier solutions with only the cost of an additional amplifier and few resistors (see Figure 27). eo 2f C1, 2 BW = -----------------A Di A Di = – 2 ( 1 + 2R 2 ⁄ R G ) eo R3 FIGURE 27. DIFFERENTIAL OUTPUT INSTRUMENTATION AMPLIFIER 10 FN6200.3 November 3, 2009 ISL55001 Strain Gauge to increasing strain, its resistance changes, resulting in an imbalance in the bridge. A voltage variation from the referenced high accuracy source is generated and translated to the difference amplifier through the buffer stage. This voltage difference as a function of the strain is converted into an output voltage (see Figure 28). The strain gauge is an ideal application to take advantage of the moderate bandwidth and high accuracy of the ISL55001. The operation of the circuit is very straightforward. As the strain variable component resistor in the balanced bridge is subjected +V VARIABLE SUBJECT TO V5 + 0V - R15 1kΩ 1kΩ R16 1kΩ 2 5V - C6 1nF R17 1kΩ R18 1kΩ 1kΩ + V+ - V- VOUT RL (V1+V2+V3+V4) 1kΩ RF 1kΩ C12 1nF + V4 - 5V FIGURE 28. STRAIN GAUGE AMPLIFIER For additional products, see www.intersil.com/product_tree Intersil products are manufactured, assembled and tested utilizing ISO9000 quality systems as noted in the quality certifications found at www.intersil.com/design/quality Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com 11 FN6200.3 November 3, 2009 ISL55001 Package Outline Drawing M8.15E 8 LEAD NARROW BODY SMALL OUTLINE PLASTIC PACKAGE Rev 0, 08/09 4 4.90 ± 0.10 A DETAIL "A" 0.22 ± 0.03 B 6.0 ± 0.20 3.90 ± 0.10 4 PIN NO.1 ID MARK 5 (0.35) x 45° 4° ± 4° 0.43 ± 0.076 1.27 0.25 M C A B SIDE VIEW “B” TOP VIEW 1.75 MAX 1.45 ± 0.1 0.25 GAUGE PLANE C SEATING PLANE 0.10 C 0.175 ± 0.075 SIDE VIEW “A 0.63 ±0.23 DETAIL "A" (0.60) (1.27) NOTES: (1.50) (5.40) 1. Dimensions are in millimeters. Dimensions in ( ) for Reference Only. 2. Dimensioning and tolerancing conform to AMSE Y14.5m-1994. 3. Unless otherwise specified, tolerance : Decimal ± 0.05 4. Dimension does not include interlead flash or protrusions. Interlead flash or protrusions shall not exceed 0.25mm per side. 5. The pin #1 identifier may be either a mold or mark feature. 6. Reference to JEDEC MS-012. TYPICAL RECOMMENDED LAND PATTERN 12 FN6200.3 November 3, 2009