link to page 3 link to page 4 link to page 5 link to page 6 link to page 14 link to page 18 link to page 21 link to page 21 link to page 21 link to page 22 link to page 24 link to page 1 link to page 1 link to page 1 link to page 1 link to page 2 link to page 5 link to page 5 link to page 14 link to page 14 link to page 15 link to page 15 link to page 15 link to page 15 link to page 16 link to page 16 link to page 17 link to page 17 link to page 18 link to page 19 link to page 19 link to page 20 link to page 21 OP1177/OP2177/OP4177TABLE OF CONTENTS Features .. 1 Overload Recovery Time .. 15 Applications ... 1 THD + Noise ... 16 Pin Configurations ... 1 Capacitive Load Drive ... 16 General Description ... 1 Stray Input Capacitance Compensation .. 17 Revision History ... 2 Reducing Electromagnetic Interference .. 17 Specifications ... 3 Proper Board Layout .. 18 Electrical Characteristics ... 4 Difference Amplifiers .. 18 Absolute Maximum Ratings .. 5 A High Accuracy Thermocouple Amplifier ... 19 Thermal Resistance .. 5 Low Power Linearized RTD .. 19 ESD Caution .. 5 Single Operational Amplifier Bridge ... 20 Typical Performance Characteristics ... 6 Realization of Active Filters .. 21 Functional Description .. 14 Band-Pass KRC or Sallen-Key Filter .. 21 Total Noise-Including Source Resistors ... 14 Channel Separation .. 21 Gain Linearity ... 14 References on Noise Dynamics and Flicker Noise ... 21 Input Overvoltage Protection ... 15 Outline Dimensions ... 22 Output Phase Reversal ... 15 Ordering Guide .. 24 Settling Time ... 15 REVISION HISTORY11/09—Rev. F to Rev. G Changes to Figure 67 and Figure 68... 21 Changes to Figure 64 .. 19 Removed SPICE Model Section ... 21 Changes to Ordering Guide .. 24 Updated Outline Dimensions ... 22 Updated Outline Dimensions ... 22 Changes to Ordering Guide .. 24 5/09—Rev. E to Rev. F4/04—Rev. B to Rev. C Changes to Figure 64 .. 19 Changes to Ordering Guide ... 4 Changes to Ordering Guide .. 24 Changes to TPC 6 .. 5 Changes to TPC 26 .. 7 10/07—Rev. D to Rev. E Updated Outline Dimensions ... 17 Changes to General Description .. 1 Changes to Table 4 .. 5 4/02—Rev. A to Rev. B Updated Outline Dimensions ... 22 Added OP4177 ... Global Edits to Specifications ... 2 7/06—Rev. C to Rev. D Edits to Electrical Characteristics Headings .. 4 Changes to Table 4 .. 5 Edits to Ordering Guide ... 4 Changes to Figure 51 .. 14 Changes to Figure 52 .. 15 11/01—Rev. 0 to Rev. A Changes to Figure 54 .. 16 Edit to Features .. 1 Changes to Figure 58 to Figure 61 .. 17 Edits to TPC 6 ... 5 Changes to Figure 62 and Figure 63 ... 18 7/01—Revision 0: Initial Version Changes to Figure 64 .. 19 Changes to Figure 65 and Figure 66 ... 20 Rev. G | Page 2 of 24 Document Outline FEATURES APPLICATIONS PIN CONFIGURATIONS GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ELECTRICAL CHARACTERISTICS ELECTRICAL CHARACTERISTICS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION TYPICAL PERFORMANCE CHARACTERISTICS FUNCTIONAL DESCRIPTION TOTAL NOISE-INCLUDING SOURCE RESISTORS GAIN LINEARITY INPUT OVERVOLTAGE PROTECTION OUTPUT PHASE REVERSAL SETTLING TIME OVERLOAD RECOVERY TIME THD + NOISE CAPACITIVE LOAD DRIVE STRAY INPUT CAPACITANCE COMPENSATION REDUCING ELECTROMAGNETIC INTERFERENCE PROPER BOARD LAYOUT DIFFERENCE AMPLIFIERS A HIGH ACCURACY THERMOCOUPLE AMPLIFIER LOW POWER LINEARIZED RTD SINGLE OPERATIONAL AMPLIFIER BRIDGE REALIZATION OF ACTIVE FILTERS BAND-PASS KRC OR SALLEN-KEY FILTER CHANNEL SEPARATION REFERENCES ON NOISE DYNAMICS AND FLICKER NOISE OUTLINE DIMENSIONS ORDERING GUIDE