Datasheet ISL28130, ISL28230, ISL28430 (Intersil)

DATASHEET ISL28130, ISL28230, ISL28430 FN7623 Single, Dual, and Quad Micropower, Low Drift, RRIO Operational Amplifiers Rev 7.00 February 13, 2014 The ISL28130, ISL28230 and ISL28430 are single, dual and Features quad micropower, low offset drift operational amplifiers that are optimized for single and dual supply operation from 1.8V • Low input offset voltage . 40µV, Max. to 5.5V and ±0.9V to ±2.75V. Their low supply current of 20µA • Low offset drift . .150nV/°C, Max. and rail-to-rail input/output enable the ISL28130, ISL28230, and ISL28430 to be an excellent general-purpose op amp for a • Input bias current. 250pA, Max. range of applications. The ISL28130, ISL28230 and ISL28430 • Quiescent current (per amplifier). .20µA, Typ. are ideal for handheld devices that operate off 2AA or single • Single supply range . .+1.8V to +5.5V Li-ion batteries. • Dual supply range . .±0.9V to ±2.75V The ISL28130 is available in industry standard pinouts for 5 Ld • Low noise (0.01Hz to 10Hz) . 1.1µV SOT-23, 5 Ld SC70 and 8 Ld SOIC packages. The ISL28230 is P-P, Typ. available in industry standard pinouts for 8 Ld MSOP, 8 Ld • Rail-to-rail inputs and output SOIC and 8 Ld DFN packages. The ISL28430 is available in 14 Ld TSSOP and 14 Ld SOIC packages. Commercial devices Applications operate over the temperature range of 0°C to 70°C. Full • Bi-directional current sense temperature range devices operate over the temperature range of -40°C to 125°C. • Temperature measurement • Medical equipment • Electronic weigh scales • Precision/strain gauge sensor • Precision regulation • Low Ohmic current sense • High gain analog front ends
V 400 I-SENSE+ + +1.8V TO +5.5V VREF 300 499k 4.99k + V+ 200 V V SENSE S = ±2.5V 0.1 V- CURRENT (pA) - OUT S 100 VS = ±0.9V 4.99k 499k BIA T U INP 0 GND -100 I-SENSE- -50 -25 0 25 50 75 100 125 BI-DIRECTIONAL CURRENT SENSE AMPLIFIER TEMPERATURE (°C)
FIGURE 1. TYPICAL APPLICATION DIAGRAM FIGURE 2. IB vs TEMPERATURE FN7623 Rev 7.00 Page 1 of 19 February 13, 2014