1 7 2 VREF Ck Clock 40kΩ 5 1.2V 33µA 6 8 4 4 REF1004C-1.2 4 A similar instrumentation amplifier, INA125, provides ✻ Dual version has external an internal reference voltage for sensor excitation sense connection. Pin numbers and/or A/D converter reference. shown are for single version. FIGURE 4. Bridge
