ADVANCE DATASHEET LNDINA333 INA333 Footprint Compatible Instrumentation Amplifiers (INA) use 60% Less Current • Fully differential AC Only (LND GENERAL DESCRIPTION FEATURES The LNDINA333 are precision instrumentation amplifiers designed to be footprint compatible with the TI INA333. Although the LNDINA333 are footprint compatible they offer similar performance to the INA333 with a significant reduction in power consumption (20uA typical and 25uA maximum vs. 50uA typical and 80uA maximum for the INA333). • • • • • • • • • • • • • • • • • To select a gain, an RG resistor is connected between the RG pins. Gain may be set from 100V/V to 2000V/V. The LNDINA333 offers extremely low offset voltage (25uV) and high CMRR (>100dB). The LNDINA333 will operate with a supply voltage as low as 2.7V, and offers a noise figure of <35nV/√Hz input referred noise (@100Hz). The LNDINA333 features 2kV HBM ESD protection. Additionally, the inputs are RFI filtered to reduce EMI susceptibility. The LNDINA333 is available in a EPAD DFN-8 package which has a 65°C/W thermal resistance. BLOCK DIAGRAM Instrumentation Amplifier Single ended output +2.7V to +3.6V input range 20µA typ current consumption (INA333,50µA) 27µA max current consumption (INA333,80µA) <25µV typical input offset voltage >100db CMRR <35nV/√Hz input referred noise (@100Hz) RFI Filtered Inputs External resistor Rg gain progrrammable Minimum gain setting 100V/V Input range: GND-0.1V to VDD-1.25V Output range: GND+0.05V to VDD-0.05V <100pA typical input bias current 5mA short circuit current Temperature range: -40°C to +125°C Footprint compatible with EPAD DFN-8 APPLICATIONS • • • • • • • • • • Fitness & health bands and watches Medical patches Audio equipment Portable fitness & wellness products Medical devices Heart Rate, Glucose, Oxygen Monitors Bridge amplifiers Pressure sensors Weigh scales Sensor amplifiers PACKAGE RG VDD INP Figure 1 – LNDINA333 Equivalent Block Diagram GND EPAD RG INM VOUT REF • Linear Dimensions Semiconductor Inc. • 3031 Tisch Way, San Jose, CA 95134 USA • tel (408) 914-2742 • www.lineardimensions.com • • Linear Dimensions Semiconductor Inc. • 3031 Tisch Way, San Jose, CA 95134 USA • tel (408) 914-2742 • www.lineardimensions.com •