Datasheet AD8290 (Analog Devices) - 3

AD8290 SPECIFICATIONS
VCC = 2.6 V to 5.0 V, TA = 25°C, CFILTER = 6.8 nF, output antialiasing capacitor = 68 nF, RSET = 3 kΩ, common-mode input = 0.6 V, unless otherwise noted.
Table 1. Parameter Test Conditions Min Typ Max Unit
COMMON-MODE REJECTION RATIO (CMRR) Input voltage (VINP − VINN) range of 0.2 V to VCC − 1.7 V CMRR DC 110 120 dB NOISE Amplifier and VREF Input referred, f = 0.1 Hz to 10 Hz 0.75 μV p-p VOLTAGE OFFSET Output Offset Reference is internal and set to 865 900 935 mV 900 mV nominal Output Offset TC −40°C < TA < +85°C −300 ±50 +300 μV/°C PSR 120 dB INPUT CURRENT Input Bias Current −1000 ±100 +1000 pA Input Offset Current −2000 ±200 +2000 pA DYNAMIC RESPONSE Small Signal Bandwidth –3 dB With external filter capacitors, 0.25 kHz CFILTER = 6.8 nF and output antialiasing capacitor = 68 nF GAIN Gain 50 V/V Gain Error −1.0 ±0.5 +1.0 % Gain Nonlinearity ±0.0075 % Gain Drift −40°C < TA < +85°C −25 ±15 +25 ppm/°C INPUT Differential Input Impedance 50||1 MΩ||pF Input Voltage Range 0.2 VCC − 1.7 V OUTPUT Output Voltage Range VOUT = Gain × (VINP − VINN) + 0.075 VCC − 0.075 V Output Offset Output Series Resistance 10 ± 20% kΩ CURRENT EXCITATION Excitation Current Range Excitation current = 0.9 V/RSET 300 1300 μA Excitation Current Accuracy −1.0 +1.0 % Excitation Current Drift −40°C < TA < +85°C −250 ±50 +250 ppm/°C External Resistor for Setting 692 3000 Ω Excitation Current (RSET) Excitation Current Power −2.0 +0.2 +2.0 μA/V Supply Rejection Excitation Current Pin Voltage 0 VCC − 1.0 V Excitation Current Output Resistance 100 MΩ Required Capacitor from Ground to 0.1 μF Excitation Current Pin (CBRIDGE) ENABLE ENBL High Level VCC < 2.9 V VCC − 0.5 VCC V VCC > 2.9 V 2.4 VCC V ENBL Low Level GND 0.8 V Start-Up Time for ENBL 5.0 ms Rev. B | Page 3 of 20 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION AMPLIFIER HIGH POWER SUPPLY REJECTION (PSR) AND COMMON-MODE REJECTION (CMR) 1/f NOISE CORRECTION CURRENT SOURCE APPLICATIONS INFORMATION TYPICAL CONNECTIONS CURRENT EXCITATION ENABLE/DISABLE FUNCTION OUTPUT FILTERING CLOCK FEEDTHROUGH MAXIMIZING PERFORMANCE THROUGH PROPER LAYOUT POWER SUPPLY BYPASSING DUAL-SUPPLY OPERATION PRESSURE SENSOR BRIDGE APPLICATION TEMPERATURE SENSOR APPLICATION ADC/MICROCONTROLLER OUTLINE DIMENSIONS ORDERING GUIDE