ISL28325

40V Low Power Dual and Quad Operational Amplifier ISL28325, ISL28345 The ISL28325 and ISL28345 are dual and quad general purpose amplifiers featuring low noise vs power consumption. The combination of low noise and small footprint provides the user with outstanding value and flexibility relative to similar competitive parts. Applications for this amplifier include active filters, medical and analytical instrumentation, power supply controls, and industrial controls. The ISL28325 is offered in 8 Ld SOIC and MSOP packages and the ISL28345 is offered in the 14 Ld SOIC package and operates over the -40°C to +125°C temperature range. Features • Input Offset Voltage . . . . . . . . . . . . . . . . . . . . . . . . . .1mV, Max. • Input Bias Current . . . . . . . . . . . . . . . . . . . . . . . . . . ±5nA, Max. • Low Current Consumption. . . . . . . . . . . . . . . . . . . . . . . . 500µA • Voltage Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9nV/Hz • Wide Supply Range . . . . . . . . . . . . . . . . . . . . . . . . .4.5V to 40V • Operating Temperature Range. . . . . . . . . . .-40°C to +125°C • Pb-Free (RoHS Compliant) Applications • Analytical Instrumentation • Medical Instrumentation • Spectral Analysis Equipment • Active Filter Blocks • Thermocouples and RTD Reference Buffers • Data Acquisition • Power Supply Control C1 8.2nF V+ R1 VIN 1.84k 4.93k 3.3nF R2 + OUTPUT C2 V- SALLEN-KEY LOW PASS FILTER (10kHz) FIGURE 1. TYPICAL APPLICATION September 27, 2011 FN7854.0 1 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. ISL28325, ISL28345 Ordering Information PART NUMBER (Notes 1, 2, 3) ISL28325FBZ ISL28325FUZ ISL28345FBZ PART MARKING 28325 FBZ 8325Z 28345 FBZ TEMP RANGE (°C) -40 to +125 -40 to +125 -40 to +125 PACKAGE (Pb-Free) 8 Ld SOIC 8 Ld MSOP 14 Ld SOIC M8.15E M8.118B MDP0027 PKG. DWG. # NOTES: 1. Add “-T*” suffix for tape and reel. 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 Pbfree products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. 3. For Moisture Sensitivity Level (MSL), please see device information page for ISL28325, ISL28345. For more information on MSL please see techbrief TB363. Pin Configurations ISL28325 (8 LD SOIC, MSOP) TOP VIEW VOUT_A -IN_A +IN_A V1 2 3 4 -+ +8 V+ 7 VOUT_B 6 -IN_B 5 +IN_B ISL28345 (14 LD SOIC) TOP VIEW VOUT_A 1 -IN_A 2 +IN_A 3 V+ 4 +IN_B 5 -IN_B 6 VOUT_B 7 -+ B +C A -+ D +14 VOUT_D 13 -IN_D 12 +IN_D 11 V- 10 +IN_C 9 -IN_C 8 VOUT_C 2 September 27, 2011 FN7854.0 ISL28325, ISL28345 Pin Descriptions ISL28325 (8 LD SOIC, MSOP) 3 5 4 2 6 8 1 7 ISL28345 (14 LD SOIC) 3 5 10 12 11 2 6 9 13 4 1 7 8 14 V+ 500Ω IN500Ω IN+ V+ OUT VCIRCUIT 2 VCIRCUIT 3 PIN NAME +IN_A +IN_B +IN_C +IN_D V-IN_A -IN_B -IN_C -IN_D V+ VOUT_A VOUT_B VOUT_C VOUT_D EQUIVALENT CIRCUIT Circuit 1 DESCRIPTION Amplifier non-inverting input Circuit 3 Circuit 1 Negative power supply Amplifier inverting input Circuit 3 Circuit 2 Positive power supply Amplifier output V+ CAPACITIVELY COUPLED ESD CLAMP V- CIRCUIT 1 3 September 27, 2011 FN7854.0 ISL28325, ISL28345 Absolute Maximum Ratings Maximum Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....42V Maximum Differential Input Current . . . . . . . . . . . . . . . . . . . . . . . . . . 20mA Maximum Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42V Min/Max Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . V- - 0.5V to V+ + 0.5V Max/Min Input current for Input Voltage >V+ or