AD8229Data SheetTYPICAL PERFORMANCE CHARACTERISTICS T = 25°C, VS = ±15, VREF = 0, RL = 2 kΩ, unless otherwise noted. 60N: 200N: 20160MEAN: 12.2σ: 8.2MEAN: 4.0σ: 0.750504040ITS HITS3030H202010100–60–40–2002040600 004 02468 007 VOSI ±15V (µV) 09412- IBIAS OFFSET (nA) 09412- Figure 5. Typical Distribution of Input Offset Voltage Figure 8. Typical Distribution of Input Offset Current N: 200N: 200MEAN: 0.9MEAN: 10.935σ: 161.2120σ: 3.7301002580ITS20ITSHH6015401020500–600–400–2000200400600800 005 –60–40–200204060 008 VOSO ±15V (µV) 09412- CMRR G1 (µV/V) 09412- Figure 6. Typical Distribution of Output Offset Voltage Figure 9. Typical Distribution of Common Mode Rejection, G = 1 INVERTINGN: 200N: 19840NONINVERTINGMEAN: –6.135MEAN: –9.1σ: 6.7σ: 9.935N: 200 MEAN: –10.130σ: 6.930252520ITSITSH20H151510105500–50–40–30–20–100102030–60–40–20020 006 015 IBIAS (nA)NINV G ERROR G1 10K ±15V (µV/V) 09412- 09412- Figure 7. Typical Distribution of Input Bias Current Figure 10. Typical Distribution of Gain Error, G = 1 Rev. B | Page 8 of 24 Document Outline Features Applications Functional Block Diagram General Description Revision History Specifications Absolute Maximum Ratings Predicted Lifetime vs. Operating Temperature Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Theory of Operation Architecture Gain Selection RG Power Dissipation Reference Terminal Input Voltage Range Layout Common-Mode Rejection Ratio over Frequency Power Supplies Reference Pin Input Bias Current Return Path Input Protection Input Voltages Beyond the Rails Large Differential Input Voltage at High Gain IMAX Radio Frequency Interference (RFI) Calculating the Noise of the Input Stage Source Resistance Noise Voltage Noise of the Instrumentation Amplifier Current Noise of the Instrumentation Amplifier Total Noise Density Calculation Outline Dimensions Ordering Guide