Datasheet AMP03 (Analog Devices) - 8
| Fabricante | Analog Devices |
| Descripción | Precision, Unity-Gain Differential Amplifier Data Sheet |
| Páginas / Página | 9 / 8 — AMP03. System Design. Suggested Op Amp. Requirement. For A1 and A2. … |
| Revisión | F |
| Formato / tamaño de archivo | PDF / 292 Kb |
| Idioma del documento | Inglés |
AMP03. System Design. Suggested Op Amp. Requirement. For A1 and A2. OP80EJ. LOAD. 0 = ( E1 – E2 )/R. –IN E1. 0 OUTPUT. +IN E2
Versión de texto del documento
AMP03 System Design Suggested Op Amp AMP03 E2 Requirement For A1 and A2
Source Impedance Low, Need Low OP27, OP37 Voltage Noise Performance OP227 (Dual Matched)
R E
OP270 (Dual)
1 OP80EJ
OP271 OP470
I I 0 LOAD 0 = ( E1 – E2 )/R
OP471 Source Impedance High OP80 Figure 8. Differential Input Voltage-to-Current Converter (RS ≥ 15 kΩ). Need Low Current OP41 for Low IOUT. OP80EJ maintains 250 fA max input current, Noise OP43 allowing IO to be less than 1 pA. OP249 OP97
AMP03 –IN E1 A1
Require Ultrahigh Input Impedance OP80
R2
OP97 OP41
R1 E R2 0 OUTPUT
OP43
A2
Need Wider Bandwidth and High OP42
+IN E2
Speed OP43 OP249
E0 = (1 + 2R2/R1) (E2 – E1)
Figure 9. Suitable Instrumentation Amplifier Requirements Can Be Addressed by Using an Input Stage Consisting of A1, A2, R1, and R2. The following matrix suggests a suitable amplifier. REV. F –7– Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM PIN CONNECTIONS SPECIFICATIONS WAFER TEST LIMITS ABSOLUTE MAXIMUM RATINGS ORDERING GUIDE DICE CHARACTERISTICS BURN-IN CIRCUIT SLEW RATE TEST CIRCUIT Typical Performance Characteristics APPLICATION CIRCUITS APPLICATIONS INFORMATION MAINTAINING COMMON-MODE REJECTION OUTLINE DIMENSIONS Revision History
Source Impedance Low, Need Low OP27, OP37 Voltage Noise Performance OP227 (Dual Matched)
R E
OP270 (Dual)
1 OP80EJ
OP271 OP470
I I 0 LOAD 0 = ( E1 – E2 )/R
OP471 Source Impedance High OP80 Figure 8. Differential Input Voltage-to-Current Converter (RS ≥ 15 kΩ). Need Low Current OP41 for Low IOUT. OP80EJ maintains 250 fA max input current, Noise OP43 allowing IO to be less than 1 pA. OP249 OP97
AMP03 –IN E1 A1
Require Ultrahigh Input Impedance OP80
R2
OP97 OP41
R1 E R2 0 OUTPUT
OP43
A2
Need Wider Bandwidth and High OP42
+IN E2
Speed OP43 OP249
E0 = (1 + 2R2/R1) (E2 – E1)
Figure 9. Suitable Instrumentation Amplifier Requirements Can Be Addressed by Using an Input Stage Consisting of A1, A2, R1, and R2. The following matrix suggests a suitable amplifier. REV. F –7– Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM PIN CONNECTIONS SPECIFICATIONS WAFER TEST LIMITS ABSOLUTE MAXIMUM RATINGS ORDERING GUIDE DICE CHARACTERISTICS BURN-IN CIRCUIT SLEW RATE TEST CIRCUIT Typical Performance Characteristics APPLICATION CIRCUITS APPLICATIONS INFORMATION MAINTAINING COMMON-MODE REJECTION OUTLINE DIMENSIONS Revision History