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INA128PA Datasheet(PDF) 10 Page - Burr-Brown (TI) |
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INA128PA Datasheet(HTML) 10 Page - Burr-Brown (TI) |
10 / 10 page INA128 R G V O C 1 0.1µF OPA130 Ref R 1 1M Ω f –3dB = 1 2 πR 1C1 = 1.59Hz V IN + – FIGURE 4. ECG Amplifier With Right-Leg Drive. FIGURE 8. Differential Voltage to Current Converter. A1 IB Error OPA177 ±1.5nA OPA131 ±50pA OPA602 ±1pA OPA128 ±75fA SEEBECK ISA COEFFICIENT TYPE MATERIAL ( µV/°C) R1, R2 E + Chromel 58.5 66.5k Ω – Constantan J + Iron 50.2 76.8k Ω – Constantan K + Chromel 39.4 97.6k Ω – Alumel T + Copper 38.0 102k Ω – Constantan FIGURE 7. Thermocouple Amplifier With RTD Cold- Junction Compensation. FIGURE 5. Bridge Amplifier. FIGURE 6. AC-Coupled Instrumentation Amplifier. REF102 R 2 R1 R 3 Pt100 Cu Cu V+ K 6 10.0V 4 2 INA128 V O Ref 100 Ω = Pt100 at 0°C R G INA128 R G I B R 1 V IN – + A 1 I O Load I O = • G V IN R 1 Ref INA128 R G/2 R G = 5.6kΩ V O LA RL RA 10k Ω Ref NOTE: Due to the INA128’s current-feedback topology, V G is approximately 0.7V less than the common-mode input voltage. This DC offset in this guard potential is satisfactory for many guarding applications. G = 10 2.8k Ω V G V G 2.8k Ω 1/2 OPA2131 390k Ω 390k Ω 1/2 OPA2131 300 Ω +5V 2.5V – ∆V 2.5V + ∆V R G INA128 V O Ref |
Similar Part No. - INA128PA |
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Similar Description - INA128PA |
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