Rad Hard Dual 36V Precision Single-Supply, Rail-to-Rail Output, Low-Power Operational Amplifiers ISL70218SRH Features The ISL70218SRH is a dual, low-power precision amplifier optimized for single-supply applications. This op amp features a common mode input voltage range extending to 0.5V below the V- rail, a rail-rail differential input voltage range, and rail-to-rail output voltage swing, which makes it ideal for single-supply applications where input operation at ground is important. • Wide Single and Dual Supply Range . . . . . . . .3V to 36V Max. This op amp features low power, low offset voltage, and low temperature drift, making it ideal for applications requiring both high DC accuracy and AC performance. This amplifier is designed to operate over a single supply range of 3V to 36V or a split supply voltage range of +1.8V/-1.2V to ±18V. The combination of precision and small footprint provides the user with outstanding value and flexibility relative to similar competitive parts. • Operating Temperature Range. . . . . . . . . . .-55°C to +125°C Applications for this amplifier include precision instrumentation, data acquisition, precision power supply controls, and industrial controls. • Low Current Consumption . . . . . . . . . . . . . . . . . . 850µA, Typ. • Low Input Offset Voltage . . . . . . . . . . . . . . . . . . . . . . 40µV, Typ. • Rail-to-Rail Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <10mV • Rail-to-Rail Input Differential Voltage Range for Comparator Applications • Below-ground (V-) Input Capability to -0.5V. • Low Noise Voltage . . . . . . . . . . . . . . . . . . . . . . 5.6nV/√Hz, Typ. • Low Noise Current . . . . . . . . . . . . . . . . . . . . . . 355fA/√Hz, Typ. • Offset Voltage Temperature Drift . . . . . . . . . . . 0.3µV/°C, Typ. • No Phase Reversal • Radiation Tolerance - High Dose Rate. . . . . . . . . . . . . . . . . . . . . . . . . . 100krad(Si) - Low Dose Rate . . . . . . . . . . . . . . . . . . . . . . . . . . 100krad(Si) - SEL/SEB LETTH (VS = ±18V) . . . . . . . . . . 86.4 MeV/mg/cm2 The ISL70218SRH is available in a 10 Ld hermetic ceramic flatpack and operates over the extended temperature range of -55°C to +125°C. Applications Related Literature • Active Filter Blocks • Precision Instruments • Data Acquisition • See AN1653, “ISL70218SRH Evaluation Board User’s Guide” • Power Supply Control • Industrial Process Control RF IN- 10kΩ RIN+ IN+ 10kΩ V+ ISL70218SRH V- +3V to 40V +25°C 300 + GAIN = 10 RREF+ +125°C 200 VOUT |VOS (µV)| RINRSENSE 400 100kΩ LOAD 100 0 -100 -40°C -200 -55°C 100kΩ -300 VREF -400 -16 -15 -14 -13 13 14 15 16 INPUT COMMON MODE VOLTAGE (V) FIGURE 1. TYPICAL APPLICATION: SINGLE-SUPPLY, LOW-SIDE CURRENT SENSE AMPLIFIER August 17, 2011 FN7871.1 1 FIGURE 2. INPUT OFFSET VOLTAGE vs INPUT COMMON MODE VOLTAGE, VS = ±15V CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas Inc. 2011. All Rights Reserved Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries. All other trademarks mentioned are the property of their respective owners. ISL70218SRH Pin Configurations ISL70218SRH (10 LD FLATPACK) TOP VIEW OUT_A 1 10 -IN_A 2 9 OUT_B +IN_A 3 8 -IN_B NC 4 7 +IN_B V- 5 6 NC - + + - V+ Pin Descriptions PIN NUMBER PIN NAME EQUIVALENT CIRCUIT 1 OUT_A Circuit 2 Amplifier A output 2 -IN_A Circuit 1 Amplifier A inverting input 3 +IN_A Circuit 1 Amplifier A non-inverting input 4 NC 5 V- 6 NC 7 +IN_B Circuit 1 Amplifier B non-inverting input 8 -IN_B Circuit 1 Amplifier B inverting input 9 OUT_B Circuit 2 Amplifier B output 10 V+ Circuit 1, 2, 3 IN- DESCRIPTION No connect Circuit 1, 2, 3 Negative power supply No connect V+ V+ IN+ OUT Positive power supply V+ CAPACITIVELY TRIGGERED ESD CLAMP V- VCIRCUIT 1 V- CIRCUIT 2 CIRCUIT 3 Ordering Information ORDERING NUMBER PART NUMBER TEMP RANGE (°C) PACKAGE PKG. DWG. # ISL70218SRHMF ISL70218 SRHMF -55 to +125 10 Ld Flatpack K10.A ISL70218SRHF/PROTO ISL70218 SRHF /PROTO -55 to +125 10 Ld Flatpack K10.A ISL70218SRHMX -55 to +125 DIE ISL70218SRHX/SAMPLE -55 to +125 DIE ISL70218SRHMEVAL1Z Evaluation Board NOTES: 1. These Intersil Pb-free Hermetic packaged products employ 100% Au plate - e4 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations. 2. For Moisture Sensitivity Level (MSL), please see device information page for ISL70218SRH. For more information on MSL, please seeTech Brief TB363. 2 FN7871.1 August 17, 2011 ISL70218SRH Absolute Maximum Ratings Thermal Information Maximum Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36V Maximum Differential Input Current . . . . . . . . . . . . . . . . . . . . . . . . . . 20mA Maximum Differential Input Voltage . . . . . . . . 36V or V- - 0.5V to V+ + 0.5V Min/Max Input Voltage . . . . . . . . . . . . . . . . . . . . 36V or V- - 0.5V to V+ + 0.5V Max/Min Input Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20mA Output Short-Circuit Duration (1 output at a time) . . . . . . . . . . . . . . Indefinite ESD Tolerance Human Body Model (Tested per MIL-PRF-883 3015.7). . . . . . . . . . . 3kV Machine Model (Tested per JESD22-A115-A) . . . . . . . . . . . . . . . . . . 300V Charged Device Model (Tested per CDM-22CI0ID) . . . . . . . . . . . . . . . 2kV Thermal Resistance (Typical) θJA (°C/W) θJC (°C/W) 10 Ld Flatpack Package (Notes 3, 4). . . . . 130 20 Storage Temperature Range. . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C Recommended Operating Conditions Ambient Operating Temperature Range . . . . . . . . . . . . . .-55°C to +125°C Maximum Operating Junction Temperature . . . . . . . . . . . . . . . . . .+150°C Supply Voltage . . . . . . . . . . . . . . . . . . . . . . 3V (+1.8V/-1.2V) to 30V (±15V) 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. NOTES: 3. θJA is measured with the component mounted on a low effective thermal conductivity test board in free air. See Tech Brief TB379 for details. 4. For θJC, the “case temp” location is the center of the package underside. Electrical Specifications VS ±15V, VCM = 0, VO = 0V, RL = Open, TA= +25°C, unless otherwise noted. Boldface limits apply over the operating temperature range, -55°C to +125°C. TYP MAX (Note 5) UNIT 40 230 µV 290 µV 1.4 µV/°C MIN PARAMETER VOS DESCRIPTION CONDITIONS (Note 5) Offset Voltage TCVOS Offset Voltage Drift 0.3 ΔVOS Input Offset Voltage Match 44 IOS Input Offset Current -50 4 -75 IB Input Bias Current -575 280 µV 365 µV 50 nA 75 nA -230 nA -800 VCMIR Common Mode Input Voltage Range CMRR Common-Mode Rejection Ratio PSRR Power Supply Rejection Ratio Guaranteed by CMRR Test VCM = V- to V+ -1.8V VCM = V- to V+ -1.8V AVOL VOH VOL IS Open-Loop Gain nA (V-) - 0.5 (V+) + 1.8 V V- (V+) - 1.8 V 100 118 dB 97 dB VS = 3V to 40V, VCMIR = Valid Input Voltage 105 124 dB 100 - dB RL = 10kΩ to ground VO = -13V to +13V 120 130 dB Output Voltage High, V+ to VOUT RL = 10kΩ Output Voltage Low, VOUT to V- RL = 10kΩ 115 Supply Current/Amplifier dB 0.85 110 mV 120 mV 70 mV 80 mV 1.1 mA 1.4 mA IS+ Source Current Capability 10 mA IS- Sink Current Capability 10 mA VSUPPLY Supply Voltage Range 3 Guaranteed by PSRR 3 40 V FN7871.1 August 17, 2011 ISL70218SRH Electrical Specifications VS ±15V, VCM = 0, VO = 0V, RL = Open, TA= +25°C, unless otherwise noted. Boldface limits apply over the operating temperature range, -55°C to +125°C. (Continued) MIN PARAMETER DESCRIPTION CONDITIONS (Note 5) TYP MAX (Note 5) UNIT AC SPECIFICATIONS GBW Gain Bandwidth Product ACL = 101, VOUT = 100mVP-P; RL = 2k enp-p Voltage Noise en 4 MHz 0.1Hz to 10Hz, VS = ±18V 300 nVP-P Voltage Noise Density f = 10Hz, VS = ±18V 8.5 nV/√Hz en Voltage Noise Density f = 100Hz, VS = ±18V 5.8 nV/√Hz en Voltage Noise Density f = 1kHz, VS = ±18V 5.6 nV/√Hz en Voltage Noise Density f = 10kHz, VS = ±18V 5.6 nV/√Hz in Current Noise Density f = 1kHz, VS = ±18V 355 fA/√Hz Total Harmonic Distortion + Noise 1kHz, G = 1, VO = 3.5VRMS, RL = 10kΩ 0.0003 % THD + N TRANSIENT RESPONSE SR tr, tf, Small Signal ts Slew Rate AV = 1, RL = 2kΩ, VO = 10VP-P ±1.2 V/µs Rise Time 10% to 90% of VOUT AV = 1, VOUT = 100mVP-P, Rf = 0Ω, RL = 2kΩ to VCM 100 ns Fall Time 90% to 10% of VOUT AV = 1, VOUT = 100mVP-P, Rf = 0Ω, RL = 2kΩ to VCM 100 ns Settling Time to 0.01% 10V Step; 10% to VOUT AV = 1, VOUT = 10VP-P, Rf = 0Ω RL = 2kΩ to VCM 8.5 µs Electrical Specifications VS ±5V, VCM = 0, VO = 0V, TA = +25°C, unless otherwise noted. Boldface limits apply over the operating temperature range, -55°C to +125°C. MIN PARAMETER DESCRIPTION CONDITIONS (Note 5) TYP VOS Offset Voltage 40 ΔVOS MAX (Note 5) UNIT µV Input Offset Voltage Match 44 µV IOS Input Offset Current 4 nA IB Input Bias Current -230 nA VCMIR Common Mode Input Voltage Range Guaranteed by CMRR Test (V-) - 0.5 (V+) + 1.8 V V- (V+) - 1.8 V CMRR Common-Mode Rejection Ratio VCM = V- - 0.5V to V+ - 1.8 VCM = V- to V+ -1.8V 117 dB PSRR Power Supply Rejection Ratio VS = 3V to 40V, VCMIR = Valid Input Voltage 124 dB AVOL Open-Loop Gain RL = 10kΩ to ground VO = -3V to +3V 130 dB VOH Output Voltage High, V+ to VOUT RL = 10kΩ 65 mV 70 mV Output Voltage Low, VOUT to V- RL = 10kΩ 38 mV 45 mV VOL IS Supply Current/Amplifier 0.85 mA IS+ Source Current Capability 8 mA IS- Sink Current Capability 8 mA 4 FN7871.1 August 17, 2011 ISL70218SRH Electrical Specifications VS ±5V, VCM = 0, VO = 0V, TA = +25°C, unless otherwise noted. Boldface limits apply over the operating temperature range, -55°C to +125°C. MIN PARAMETER DESCRIPTION CONDITIONS (Note 5) TYP MAX (Note 5) UNIT AC SPECIFICATIONS GBW Gain Bandwidth Product enp-p 3.2 MHz Voltage Noise 0.1Hz to 10Hz 320 nVP-P en Voltage Noise Density f = 10Hz 9 nV/√Hz en Voltage Noise Density f = 100Hz 5.7 nV/√Hz en Voltage Noise Density f = 1kHz 5.5 nV/√Hz en Voltage Noise Density f = 10kHz 5.5 nV/√Hz in Current Noise Density f = 1kHz 380 fA/√Hz Total Harmonic Distortion + Noise 1kHz, G = 1, VO = 1.25VRMS, RL = 10kΩ 0.0003 % THD + N TRANSIENT RESPONSE SR tr, tf, Small Signal ts Slew Rate AV = 1, RL = 2kΩ, VO = 4VP-P ±1 V/µs Rise Time 10% to 90% of VOUT AV = 1, VOUT = 100mVP-P , Rf = 0Ω, RL = 2kΩ to VCM 100 ns Fall Time 90% to 10% of VOUT AV = 1, VOUT = 100mVP-P , Rf = 0Ω, RL = 2kΩ to VCM 100 ns Settling Time to 0.01% 4V Step; 10% to VOUT AV = 1, VOUT = 4VP-P, Rf = 0Ω RL = 2kΩ to VCM 4 µs NOTE: 5. Compliance to datasheet limits is assured by one or more methods: production test, characterization and/or design. Post Radiation Characteristics VS ±15V, VCM = 0V, VO = 0V, RL = Open, TA= +25°C, unless otherwise noted. This data is typical test data post radiation exposure at a rate of 50 to 300rad(Si)/s. This data is intended to show typical parameter shifts due to high dose radiation. These are not limits nor are they guaranteed. PARAMETER DESCRIPTION CONDITIONS 50k RAD 75k RAD 100k RAD UNIT VOS Offset Voltage 35 35 35 µV IOS Input Offset Current 2 3 5 nA IB Input Bias Current 200 400 575 nA CMRR Common-Mode Rejection Ration VCM = -13V to +13V 129 128 127 dB PSRR Power Supply Rejection Ratio VS = ±2.25V to ±15V 130 130 130 dB AVOL Open-Loop Gain VO = -13V to +13V RL = 10kΩ to ground 131.6 131.1 131.1 dB VOH Output Voltage High V+ to VOUT RL = 10kΩ to ground 71 74 76 mV VOL Output Voltage Low VOUT to V- RL = 10kΩ to ground 54 57 59 mV 830 830 830 µA 1.24 1.23 1.22 V/µs IS Supply Current/Amplifier TRANSIENT RESPONSE SR Slew Rate AV = 10, RL = 2kΩ, VO = 4VP-P 5 FN7871.1 August 17, 2011 ISL70218SRH Post Radiation Characteristics VS ±15V, VCM = 0V, VO = 0V, RL = Open, TA= +25°C, unless otherwise noted. This data is typical test data post radiation exposure at a rate of 10mrad(Si)/s. This data is intended to show typical parameter shifts due to low dose radiation. These are not limits nor are they guaranteed. PARAMETER DESCRIPTION CONDITIONS 50k RAD 100k RAD UNIT 21 15 10 µV VOS Offset Voltage IOS Input Offset Current 8 10 10 nA IB Input Bias Current 130 130 130 nA IS Supply Current/Amplifier 625 615 600 µA Typical Performance Curves VS = ±15V, VCM = 0V, RL = Open, unless otherwise specified. 100 400 90 300 80 +25°C +125°C 200 60 VS = ±15V 50 40 |VOS (µV)| 70 VOS (µV) 20k RAD 30 100 0 -100 -40°C -200 -55°C 20 VS = ±5V 10 0 -60 -40 -20 0 20 -300 40 60 80 -400 -16 100 120 140 160 -15 TEMPERATURE (°C) FIGURE 3. VOS vs TEMPERATURE -14 -13 13 14 15 FIGURE 4. INPUT OFFSET VOLTAGE vs INPUT COMMON MODE VOLTAGE, VS = ±15V -150 0 -50 VS = +40V -200 -100 VS = +30V -200 IBIAS (nA) IBIAS (nA) -150 -250 -300 -250 -300 VS = +3.0V -350 -350 -400 VS = +4.5V -450 -500 16 INPUT COMMON MODE VOLTAGE (V) 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 VS (V) FIGURE 5. IBIAS vs VS 6 -400 -60 -40 -20 0 20 40 VS = +10V 60 80 100 120 140 TEMPERATURE (°C) FIGURE 6. IBIAS vs TEMPERATURE vs SUPPLY FN7871.1 August 17, 2011 ISL70218SRH VS = ±15V, VCM = 0V, RL = Open, unless otherwise specified. (Continued) 132 132 130 130 128 128 126 126 124 CMRR (dB) CMRR (dB) Typical Performance Curves CHANNEL-A 122 120 118 116 CHANNEL-B 124 122 120 116 114 112 112 0 110 -60 -40 -20 20 40 60 80 100 120 140 160 TEMPERATURE (°C) 135 130 125 120 115 110 105 100 -60 10 100 1k 10k 100k 1M 10M 100M 1G FREQUENCY (Hz) PSRR+ PSRR- 1k 10k 100k FREQUENCY (Hz) 1M FIGURE 11. PSRR vs FREQUENCY, VS = ±15V 7 -40 -20 0 20 40 60 80 100 120 140 160 TEMPERATURE (°C) FIGURE 10. PSRR vs TEMPERATURE, VS = ±15V PSRR (dB) PSRR (dB) 20 40 60 80 100 120 140 160 TEMPERATURE (°C) 140 FIGURE 9. CMRR vs FREQUENCY, VS = ±15V 140 130 120 110 100 90 80 70 60 50 40 VS = ±15V 30 AV = 1 20 CL = 4pF 10 RL = 10k 0 VCM = 1VP-P -10 10 100 0 FIGURE 8. CMRR vs TEMPERATURE, VS = ±5V PSRR (dB) CMRR (dB) FIGURE 7. CMRR vs TEMPERATURE, VS = ±15V 140 130 120 110 100 90 80 70 60 50 40 30 VS = ±15V 20 SIMULATION 10 0 1m 0.01 0.1 1 CHANNEL-B 118 114 110 -60 -40 -20 CHANNEL-A 10M 140 130 120 110 100 90 80 70 60 50 40 VS = ±5V 30 AV = 1 20 CL = 4pF 10 RL = 10k 0 VCM = 1VP-P -10 10 100 PSRR+ PSRR- 1k 10k 100k FREQUENCY (Hz) 1M 10M FIGURE 12. PSRR vs FREQUENCY, VS = ±5V FN7871.1 August 17, 2011 ISL70218SRH 200 180 160 140 120 100 80 60 40 20 0 -20 -40 -60 VS = ±15V -80 RL = 1MΩ -100 1m 0.01 0.1 VS = ±15V, VCM = 0V, RL = Open, unless otherwise specified. (Continued) 70 60 PHASE RF = 10kΩ, RG = 10Ω ACL = 1000 RF = 10kΩ, RG = 100Ω 50 GAIN (dB) GAIN (dB) Typical Performance Curves GAIN 40 30 20 ACL = 10 RF = 10kΩ, RG = 1kΩ 10 ACL = 1 0 1 -10 100 10 100 1k 10k 100k 1M 10M100M 1G VS = ±5V & ±15V CL = 4pF RL = 2k VOUT = 100mVP-P ACL = 100 RF = 0, RG = ∞ 1k 10k FREQUENCY (Hz) 1 1 0 0 -1 -1 -2 -3 RL = OPEN, 100k, 10k RL = 1k RL = 499 RL = 100 -5 VS = ±15V CL = 4pF -7 AV = +1 -8 VOUT = 100mVp-p -6 -9 100 1k RL = 49.9 10k 100k 1M -3 -4 RL = OPEN, 100k, 10k -6 VS = ±5V CL = 4pF -7 A = +1 V -8 VOUT = 100mVp-p 1k RL = 49.9 10k 100k 1M 10M FREQUENCY (Hz) FIGURE 16. GAIN vs FREQUENCY vs RL, VS = ±5V 1 1 0 0 -1 -1 NORMALIZED GAIN (dB) NORMALIZED GAIN (dB) RL = 1k RL = 499 RL = 100 -5 -9 100 10M FIGURE 15. GAIN vs FREQUENCY vs R L, VS = ±15V -2 -3 -4 VOUT = 10mVP-P VS = ±5V VOUT = 50mVP-P CL = 4pF -7 A = +1 V -8 RL = INF VOUT = 100mVP-P -6 10M -2 FREQUENCY (Hz) -5 1M FIGURE 14. FREQUENCY RESPONSE vs CLOSED LOOP GAIN NORMALIZED GAIN (dB) NORMALIZED GAIN (dB) FIGURE 13. OPEN-LOOP GAIN, PHASE vs FREQUENCY, VS = ±15V -4 100k FREQUENCY (Hz) -9 100 VOUT = 500mVP-P VOUT = 1VP-P 1k 10k 100k 1M 10M FREQUENCY (Hz) FIGURE 17. GAIN vs FREQUENCY vs OUTPUT VOLTAGE 8 -2 -3 VS = ±1.5V -4 VS = ±5V -5 VS = ±15V -6 CL = 4pF R = 10k -7 L AV = +1 -8 VOUT = 100mVP-P -9 100 1k 10k 100k 1M 10M FREQUENCY (Hz) FIGURE 18. GAIN vs FREQUENCY vs SUPPLY VOLTAGE FN7871.1 August 17, 2011 ISL70218SRH Typical Performance Curves 100 42 VS = ±15V RL = 10k 90 38 VOH 80 70 60 50 -40 -20 0 34 32 30 28 26 VOL 22 20 -60 20 40 60 80 100 120 140 160 TEMPERATURE (°C) FIGURE 19. OUTPUT OVERHEAD VOLTAGE vs TEMPERATURE, VS = ±15V, RL = 10k 1.0 VOH 36 24 VOL 40 -60 VS = ±5V RL = 10k 40 VOH AND VOL (mV) VOH AND VOL (mV) VS = ±15V, VCM = 0V, RL = Open, unless otherwise specified. (Continued) -40 -20 0 20 40 60 80 100 120 140 160 TEMPERATURE (°C) FIGURE 20. OUTPUT OVERHEAD VOLTAGE vs TEMPERATURE, VS = ±5V, RL = 10k 1.0 VS = ±5V and ±15V VS = ±5V and ±15V +125°C +25°C 0.1 VOL - V- (V) V+ - VOH (V) +125°C 0.01 -55°C 0.001 0.001 0.01 0.1 LOAD CURRENT (mA) 1.0 0.001 0.001 10 0.1 1.0 10 FIGURE 22. OUTPUT OVERHEAD VOLTAGE LOW vs LOAD CURRENT, VS = ±5V and ±15V 5 14 V = ±15V S 13 AV = 2 RF = RG = 100k 12 V = ±7.5V-DC IN 11 -55°C 10 +75°C -10 -11 VOH +125°C -40°C -12 0°C +125°C +75°C -55°C -2 +25°C -13 4 VS = ±5V AV = 2 3 R = R = 100k F G VIN = ±2.5V-DC 2 1 -1 VOL VOH 0.01 LOAD CURRENT (mA) 15 VOL 0.01 -55°C FIGURE 21. OUTPUT OVERHEAD VOLTAGE HIGH vs LOAD CURRENT, VS = ±5V and ±15V 0°C -40°C -3 +25°C -4 -14 -15 +25°C 0.1 0 2 4 6 8 10 12 14 16 I-FORCE (mA) 18 20 22 24 FIGURE 23. OUTPUT VOLTAGE SWING vs LOAD CURRENT, VS = ±15V 9 -5 0 2 4 6 8 10 12 14 16 I-FORCE (mA) 18 20 22 24 FIGURE 24. OUTPUT VOLTAGE SWING vs LOAD CURRENT, VS = ±5V FN7871.1 August 17, 2011 ISL70218SRH Typical Performance Curves VS = ±15V, VCM = 0V, RL = Open, unless otherwise specified. (Continued) 1600 ISUPPLY PER AMPLIFIER (µA) 1100 CURRENT (µA) 1400 VS = ±21V 1200 1000 VS = ±15V 800 VS = ±2.25V 600 1000 900 800 700 600 500 400 300 200 100 -40 -20 0 20 40 60 80 0 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 100 120 140 160 VSUPPLY (V) TEMPERATURE (°C) FIGURE 25. SUPPLY CURRENT vs TEMPERATURE vs SUPPLY VOLTAGE 100 INPUT NOISE VOLTAGE 10 10 INPUT NOISE CURRENT 1 0.1 0.1 1 10 100 1k 10k 1 0.1 100k INPUT NOISE VOLTAGE (nV/√Hz) 100 VS = ±18V INPUT NOISE CURRENT (fA/√Hz) INPUT NOISE VOLTAGE (nV/√Hz) 100 FIGURE 26. SUPPLY CURRENT vs SUPPLY VOLTAGE 100 VS = ±5V INPUT NOISE VOLTAGE 10 10 INPUT NOISE CURRENT 1 1 0.1 0.1 1 10 100 1k FREQUENCY (Hz) FREQUENCY (Hz) FIGURE 27. INPUT NOISE VOLTAGE (en) AND CURRENT (in) vs FREQUENCY, VS = ±18V 500 VS = ±18V AV = 10k 400 300 INPUT NOISE VOLTAGE (nV) INPUT NOISE VOLTAGE (nV) 0.1 100k 10k FIGURE 28. INPUT NOISE VOLTAGE (en) AND CURRENT (in) vs FREQUENCY, VS = ±5V 500 200 100 0 -100 -200 -300 -400 -500 INPUT NOISE CURRENT (fA/√Hz) 400 -60 VS = ±5V AV = 10k 400 300 200 100 0 -100 -200 -300 -400 -500 0 1 2 3 4 5 6 7 8 9 10 TIME (s) FIGURE 29. INPUT NOISE VOLTAGE 0.1Hz TO 10Hz, VS = ±18V 10 0 1 2 3 4 5 6 7 8 9 10 TIME (s) FIGURE 30. INPUT NOISE VOLTAGE 0.1Hz TO 10Hz, VS = ±5V FN7871.1 August 17, 2011 ISL70218SRH Typical Performance Curves 0.1 VS = ±15V CL = 4pF RL = 2k VOUT = 10VP-P AV = 10 +25°C +125°C THD + N (%) 0.01 C-WEIGHTED 22Hz TO 500kHz 0.001 -55°C +25°C +125°C AV = 1 0.0001 10 100 1k FREQUENCY (Hz) 10k 100k 100 VS = ±15V CL = 4pF RL = 10k 0.1 f = 1kHz 10k 100k +125°C C-WEIGHTED 22Hz TO 22kHz AV = 10 -55°C 0.01 +25°C +125°C 0.001 0 5 +125°C +25°C 10 15 AV = 1 -55°C 20 25 30 0.0001 0 +25°C 10 5 VOUT (VP-P) FIGURE 33. THD+N vs OUTPUT VOLTAGE (VOUT) vs TEMPERATURE, AV = 1, 10, RL = 2k 1.2 VOUT (V) 0.8 30 0.4 0 -0.4 -2 -0.8 -4 -1.2 -1.6 -6 -2.0 -2.4 20 -55°C 25 VS = ±5V AV = 1 RL = 2k CL = 4pF 2.0 1.6 0 10 AV = 1 2.4 VS = ±15V AV = 1 4 RL = 2k CL = 4pF 2 0 +125°C 15 20 VOUT (VP-P) FIGURE 34. THD+N vs OUTPUT VOLTAGE (VOUT) vs TEMPERATURE, AV = 1, 10, RL = 10k 6 VOUT (V) 1k FIGURE 32. THD+N vs FREQUENCY vs TEMPERATURE, AV = 1, 10, RL = 10k 0.001 0.0001 AV = 1 +125°C 0.0001 10 1.0 +25°C -55°C +25°C AV = 10 0.01 +125°C 0.001 C-WEIGHTED 22Hz TO 22kHz -55°C +25°C 0.01 C-WEIGHTED 22Hz TO 500kHz THD + N (%) THD + N (%) VS = ±15V CL = 4pF RL = 2k 0.1 f = 1kHz AV = 10 FREQUENCY (Hz) FIGURE 31. THD+N vs FREQUENCY vs TEMPERATURE, AV = 1, 10, RL = 2k 1.0 -55°C VS = ±15V CL = 4pF RL = 10k VOUT = 10VP-P -55°C THD + N (%) 0.1 VS = ±15V, VCM = 0V, RL = Open, unless otherwise specified. (Continued) 30 40 50 60 TIME (µs) 70 80 90 100 FIGURE 35. LARGE SIGNAL 10V STEP RESPONSE, VS = ±15V 11 0 10 20 30 40 50 60 TIME (µs) 70 80 90 100 FIGURE 36. LARGE SIGNAL 4V STEP RESPONSE, VS = ±5V FN7871.1 August 17, 2011 ISL70218SRH Typical Performance Curves 100 6 VS = ±15V AND VS = ±5V AV = 1 RL = 2k CL = 4pF 60 40 20 0 -20 -40 -60 4 INPUT 3 2 1 OUTPUT 0 -1 -2 -3 -4 -80 -5 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 -6 2 0 1 2 TIME (ms) TIME (µs) 12 OUTPUT -40 -4 -80 -8 -120 80 8 40 4 -160 0 40 -200 0 4 8 12 16 20 24 TIME (µs) 28 32 36 FIGURE 39. POSITIVE OUTPUT OVERLOAD RESPONSE TIME, VS = ±15V 50 INPUT 40 OUTPUT 1 -50 0 40 -60 0 20 24 28 32 36 TIME (µs) FIGURE 41. POSITIVE OUTPUT OVERLOAD RESPONSE TIME, VS = ±5V 12 20 24 0 -2 10 16 16 -20 2 12 12 -1 20 8 8 -10 3 4 4 0 30 0 0 -12 VS = ±15V AV = 100 -16 RL = 10k VIN = 100mVP-P OVERDRIVE = 1V -20 28 32 36 40 FIGURE 40. NEGATIVE OUTPUT OVERLOAD RESPONSE TIME, VS = ±15V OUTPUT (V) 6 VS = ±5V AV = 100 5 RL = 10k VIN = 50mVP-P OVERDRIVE = 1V 4 60 OUTPUT TIME (µs) INPUT (mV) 0 INPUT (mV) INPUT (mV) 120 INPUT OUTPUT (V) INPUT (mV) 160 0 0 20 VS = ±15V AV = 100 RL = 10k 16 VIN = 100mVP-P OVERDRIVE = 1V INPUT 4 FIGURE 38. NO PHASE REVERSAL FIGURE 37. SMALL SIGNAL TRANSIENT RESPONSE, VS = ±5V, ±15V 200 3 OUTPUT (V) 0 -30 OUTPUT -40 INPUT 0 4 8 12 16 20 24 -3 -4 VS = ±5V AV = 100 RL = 10k -5 VIN = 50mVP-P OVERDRIVE = 1V -6 28 32 36 40 OUTPUT (V) -100 VS = ±5V VIN = ±5.9V 5 INPUT AND OUTPUT (V) 80 VOUT (V) VS = ±15V, VCM = 0V, RL = Open, unless otherwise specified. (Continued) TIME (µs) FIGURE 42. NEGATIVE OUTPUT OVERLOAD RESPONSE TIME, VS = ±5V FN7871.1 August 17, 2011 ISL70218SRH Typical Performance Curves VS = ±15V, VCM = 0V, RL = Open, unless otherwise specified. (Continued) 100 100 VS = ±15V VS = ±5V AV = 10 10 AV = 10 10 AV = 100 ZOUT (Ω) ZOUT (Ω) AV = 100 1 1 0.10 0.10 AV = 1 AV = 1 0.01 1 10 100 1k 10k 100k 1M 0.01 10M 1 10 100 FREQUENCY (Hz) FIGURE 43. OUTPUT IMPEDANCE vs FREQUENCY, VS = ±15V OVERSHOOT (%) 50 60 VS = ±15V VOUT = 100mVP-P 50 AV = 1 40 AV = 10 AV = -1 30 20 0.010 0.100 1 10 10M AV = 1 40 AV = 10 AV = -1 30 20 0.01 LOAD CAPACITANCE (nF) 0.1 1 10 100 LOAD CAPACITANCE (nF) FIGURE 46. OVERSHOOT vs CAPACITIVE LOAD, VS = ±5V 30 VS = ±15V 28 R = 10k L 26 VS = ±15V AV = 1 24 ISC (mA) VOUT (VP-P) 1M VS = ±5V VOUT = 100mVP-P 0 0.001 100 FIGURE 45. OVERSHOOT vs CAPACITIVE LOAD, VS = ±15V 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 1k 100k 10 10 0 0.001 10k FIGURE 44. OUTPUT IMPEDANCE vs FREQUENCY, V S = ±5V OVERSHOOT (%) 60 1k FREQUENCY (Hz) ISC-SINK 22 20 18 16 14 ISC-SOURCE 12 10k 100k FREQUENCY (Hz) FIGURE 47. IMAX OUTPUT VOLTAGE vs FREQUENCY 13 1M 10 -60 -40 -20 0 20 40 60 80 100 120 140 160 TEMPERATURE (°C) FIGURE 48. SHORT CIRCUIT CURRENT vs TEMPERATURE, VS = ±15V FN7871.1 August 17, 2011 ISL70218SRH Applications Information Functional Description The ISL70218SRH is a dual, 3.2MHz, single-supply, rail-to-rail output amplifier with a common mode input voltage range extending to a range of 0.5V below the V- rail. The input stage is optimized for precision sensing of ground-referenced signals in single-supply applications. The input stage is able to handle large input differential voltages without phase inversion, making this amplifier suitable for high-voltage comparator applications. The bipolar design features high open loop gain and excellent DC input and output temperature stability. This op amp features very low quiescent current of 850µA, and low temperature drift. The device is fabricated in a new precision 40V complementary bipolar DI process and is immune from latch-up for up to a 36V supply range. Operating Voltage Range The op amp is designed to operate over a single supply range of 3V to 36V or a split supply voltage range of +1.8V/-1.2V to ±18V. The device is fully characterized at 30V (±15V). Both DC and AC performance remain virtually unchanged over the complete operating voltage range. Parameter variation with operating voltage is shown in the “Typical Performance Curves” beginning on page 6. The input common mode voltage to the V+ rail (V+ - 1.8V over the full temperature range) may limit amplifier operation when operating from split V+ and V- supplies. Figure 4 shows the common mode input voltage range variation over temperature. Input Stage Performance The ISL70218SRH PNP input stage has a common mode input range extending up to 0.5V below ground at +25°C. Full amplifier performance is guaranteed for input voltage down to ground (V-) over the -55°C to +125°C temperature range. For common mode voltages down to -0.5V below ground (V-), the amplifiers are fully functional, but performance degrades slightly over the full temperature range. This feature provides excellent CMRR, AC performance, and DC accuracy when amplifying low-level, ground-referenced signals. The input stage has a maximum input differential voltage equal to a diode drop greater than the supply voltage and does not contain the back-to-back input protection diodes found on many similar amplifiers. This feature enables the device to function as a precision comparator by maintaining very high input impedance for high-voltage differential input comparator voltages. The high differential input impedance also enables the device to operate reliably in large signal pulse applications, without the need for anti-parallel clamp diodes required on MOSFET and most bipolar input stage op amps. Thus, input signal distortion caused by nonlinear clamps under high slew rate conditions is avoided. In applications in which one or both amplifier input terminals is at risk of exposure to voltages beyond the supply rails, current-limiting resistors may be needed at each input terminal (see Figure 49, RIN+, RIN-) to limit current through the power-supply ESD diodes to 20mA. 14 V+ VINVIN+ RIN- - RIN+ + RF RL RG V- FIGURE 49. INPUT ESD DIODE CURRENT LIMITING Output Drive Capability The bipolar rail-to-rail output stage features low saturation levels that enable an output voltage swing to less than 15mV when the total output load (including feedback resistance) is held below 50µA (Figures 21 and 22). With ±15V supplies, this can be achieved by using feedback resistor values >300kΩ. The output stage is internally current limited. Output current limit over temperature is shown in Figures 23 and 24. The amplifiers can withstand a short circuit to either rail as long as the power dissipation limits are not exceeded. This applies to only one amplifier at a time for the dual op amp. Continuous operation under these conditions may degrade long-term reliability. The amplifiers perform well when driving capacitive loads (Figures 45 and 46). The unity gain, voltage follower (buffer) configuration provides the highest bandwidth but is also the most sensitive to ringing produced by load capacitance found in BNC cables. Unity gain overshoot is limited to 35% at capacitance values to 0.33nF. At gains of 10 and higher, the device is capable of driving more than 10nF without significant overshoot. Output Phase Reversal Output phase reversal is a change of polarity in the amplifier transfer function when the input voltage exceeds the supply voltage. The ISL70218SRH is immune to output phase reversal out to 0.5V beyond the rail (VABS MAX) limit (Figure 38). Single Channel Usage The ISL70218SRH is a dual op amp. If the application requires only one channel, the user must configure the unused channel to prevent it from oscillating. The unused channel oscillates if the input and output pins are floating. This results in higher-than-expected supply currents and possible noise injection into the channel being used. The proper way to prevent oscillation is to short the output to the inverting input, and ground the positive input (Figure 50). + FIGURE 50. PREVENTING OSCILLATIONS IN UNUSED CHANNELS FN7871.1 August 17, 2011 ISL70218SRH Power Dissipation PDMAX for each amplifier can be calculated using Equation 2: It is possible to exceed the +150°C maximum junction temperatures under certain load and power supply conditions. It is therefore important to calculate the maximum junction temperature (TJMAX) for all applications to determine if power supply voltages, load conditions, or package type need to be modified to remain in the safe operating area. These parameters are related using Equation 1: V OUTMAX PD MAX = V S × I qMAX + ( V S - V OUTMAX ) × -----------------------R where T JMAX = T MAX + θ JA xPD MAXTOTAL • IqMAX = Maximum quiescent supply current of one amplifier (EQ. 1) (EQ. 2) L • PDMAX = Maximum power dissipation of one amplifier • VS = Total supply voltage • VOUTMAX = Maximum output voltage swing of the application where • PDMAXTOTAL is the sum of the maximum power dissipation of each amplifier in the package (PDMAX) • RL = Load resistance • TMAX = Maximum ambient temperature • ΘJA = Thermal resistance of the package 15 FN7871.1 August 17, 2011 ISL70218SRH Package Characteristics TOP METALLIZATION Type: AlCu (99.5%/0.5%) Thickness: 30kÅ Weight of Packaged Device 0. 4029 grams (Typical) BACKSIDE FINISH Lid Characteristics Silicon Finish: Gold Potential: Floating PROCESS PR40 Die Characteristics ASSEMBLY RELATED INFORMATION Die Dimensions SUBSTRATE POTENTIAL 1565µm x 2125µm (62mils x 84mils) Thickness: 355µm ± 25µm (14 mils ± 1 mil) Unbiased ADDITIONAL INFORMATION Interface Materials WORST CASE CURRENT DENSITY GLASSIVATION < 2 x 105 A/cm2 Type: Nitrox Thickness: 15kÅ Metallization Mask Layout +IN_A V- -IN_A OUT_A PLACE HOLDER +IN_B 16 -IN_B OUT_A V+ FN7871.1 August 17, 2011 ISL70218SRH Revision History The revision history provided is for informational purposes only and is believed to be accurate, but not warranted. Please go to web to make sure you have the latest revision. DATE REVISION CHANGE 8/17/11 FN7871.1 Removed coming soon from parts ISL70218SRHMF AND ISL70218SRHMX AND ISL70218SRHX/SAMPLE in Ordering Information Table. 8/9/2011 FN7871.0 Initial Release Products Intersil Corporation is a leader in the design and manufacture of high-performance analog semiconductors. The Company's products address some of the industry's fastest growing markets, such as, flat panel displays, cell phones, handheld products, and notebooks. Intersil's product families address power management and analog signal processing functions. Go to www.intersil.com/products for a complete list of Intersil product families. For a complete listing of Applications, Related Documentation and Related Parts, please see the respective device information page on intersil.com: ISL70218SRH To report errors or suggestions for this datasheet, please go to: www.intersil.com/askourstaff FITs are available from our website at: http://rel.intersil.com/reports/search.php 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 17 FN7871.1 August 17, 2011 ISL70218SRH Ceramic Metal Seal Flatpack Packages (Flatpack) K10.A MIL-STD-1835 CDFP3-F10 (F-4A, CONFIGURATION B) 10 LEAD CERAMIC METAL SEAL FLATPACK PACKAGE e A INCHES A -A- D -BPIN NO. 1 ID AREA b E1 0.004 M H A-B S Q D S S1 0.036 M H A-B S D S C E -D- A -C- -HL E2 E3 SEATING AND BASE PLANE c1 L E3 (c) b1 M M (b) SECTION A-A MIN MILLIMETERS MAX MIN MAX NOTES A 0.045 0.115 1.14 2.92 - b 0.015 0.022 0.38 0.56 - b1 0.015 0.019 0.38 0.48 - c 0.004 0.009 0.10 0.23 - c1 0.004 0.006 0.10 0.15 - D - 0.290 - 7.37 3 E 0.240 0.260 6.10 6.60 - E1 - 0.280 - 7.11 3 E2 0.125 - 3.18 - - E3 0.030 - 0.76 - 7 2 e LEAD FINISH BASE METAL SYMBOL 0.050 BSC 1.27 BSC - k 0.008 0.015 0.20 0.38 L 0.250 0.370 6.35 9.40 - Q 0.026 0.045 0.66 1.14 8 S1 0.005 - 0.13 - 6 M - 0.0015 - 0.04 - N 10 10 Rev. 0 3/07 NOTES: 1. Index area: A notch or a pin one identification mark shall be located adjacent to pin one and shall be located within the shaded area shown. The manufacturer’s identification shall not be used as a pin one identification mark. Alternately, a tab (dimension k) may be used to identify pin one. 2. If a pin one identification mark is used in addition to a tab, the limits of dimension k do not apply. 3. This dimension allows for off-center lid, meniscus, and glass overrun. 4. Dimensions b1 and c1 apply to lead base metal only. Dimension M applies to lead plating and finish thickness. The maximum limits of lead dimensions b and c or M shall be measured at the centroid of the finished lead surfaces, when solder dip or tin plate lead finish is applied. 5. N is the maximum number of terminal positions. 6. Measure dimension S1 at all four corners. 7. For bottom-brazed lead packages, no organic or polymeric materials shall be molded to the bottom of the package to cover the leads. 8. Dimension Q shall be measured at the point of exit (beyond the meniscus) of the lead from the body. Dimension Q minimum shall be reduced by 0.0015 inch (0.038mm) maximum when solder dip lead finish is applied. 9. Dimensioning and tolerancing per ANSI Y14.5M - 1982. 10. Controlling dimension: INCH. 18 FN7871.1 August 17, 2011