350 DATASHEET ISL28134 FN6957 Rev 6.00 5V Ultra Low Noise, Zero Drift Rail-to-Rail Precision Op Amp October 14, 2014 The ISL28134 is a single, chopper-stabilized zero drift Features operational amplifier optimized for single and dual supply Rail-to-rail inputs and outputs operation from 2.25V to 6.0V and 1.125V and 3.0V. The ISL28134 uses auto-correction circuitry to provide very low - CMRR at V = 0.1V beyond V . 135dB, typ CM S input offset voltage, drift and a reduction of the 1/f noise -V and V .10mV from V , typ OH OL S corner below 0.1Hz. The ISL28134 achieves ultra low offset No 1/f noise corner down to 0.1Hz voltage, offset temperature drift, wide gain bandwidth and rail- - Input noise voltage . 10nV/Hz at 1kHz to-rail input/output swing while minimizing power consumption. - 0.1Hz to 10Hz noise voltage . 250nV P-P The ISL28134 is ideal for amplifying the sensor signals of Low offset voltage 2.5V, Max analog front-ends that include pressure, temperature, medical, Superb offset drift . 15nV/C, Max strain gauge and inertial sensors down to the V levels. Single supply 2.25V to 6.0V The ISL28134 can be used over standard amplifiers with high Dual supply . 1.125V to 3.0V stability across the industrial temperature range of -40C to +85C and the full industrial temperature range of -40C to Low I . 675A, typ CC +125C. The ISL28134 is available in an industry standard Wide bandwidth . 3.5MHz pinout SOIC and SOT-23 packages. Operating temperature range Applications - Industrial -40C to +85C Medical instrumentation - Full industrial .-40C to +125C Sensor gain amps Packaging Precision low drift, low frequency ADC drivers - Single: SOIC, SOT-23 Precision voltage reference buffers Related Literature Thermopile, thermocouple, and other temperature sensors AN1641, ISL28134SOICEVAL1Z Evaluation Board Users front-end amplifiers Guide Inertial sensors AN1560, Making Accurate Voltage Noise and Current Noise Process control systems Measurements on Operational Amplifiers Down to 0.1Hz Weight scales and strain gauge sensors 1600 V = 2.5V 1400 s V = 0V CM +5 T = -40C to +125C 1200 ISL28134 ISL26102 N = 2796 + 1000 50 ISL22316 24-BIT ADC - 800 50k ISL21010 600 50k - 50 5V VREF 400 DCP + 200 ISL28134 0 -2.5 -2.0 -1.5 -1.0 -0.5 0 0.5 1.0 1.5 2.0 2.5 FIGURE 1. PRECISION WEIGH SCALE / STRAIN GAUGE FIGURE 2. V HISTOGRAM V = 5V OS S FN6957 Rev 6.00 Page 1 of 25 October 14, 2014 350 350 NUMBER OF AMPLIFIERSISL28134 Pin Configurations ISL28134 ISL28134 (5 LD SOT-23) (8 LD SOIC) TOP VIEW TOP VIEW 1 5 OUT V+ NC NC 1 8 V- 2 +- 2 7 V+ IN- - + 3 4 IN- IN+ IN+ 3 6 OUT V- 4 5 NC Pin Descriptions ISL28134 ISL28134 PIN (8 Ld SOIC) (5 Ld SOT-23) NAME FUNCTION EQUIVALENT CIRCUIT 2 4 IN- Inverting input (See Circuit 1) 33 IN+ Non-inverting input V+ - + - IN+ + IN- CLOCK GEN + DRIVERS V- Circuit 1 42 V- Negative supply V+ 61 OUTOutput OUT V- Circuit 2 75 V+ Positive supply 1, 5, 8 - NC No Connect Pin is floating. No connection made to IC. FN6957 Rev 6.00 Page 2 of 25 October 14, 2014