Datasheet AD8237 (Analog Devices) - 10

AD8237 Data Sheet 6 4 G = 1 VS = ±2.5V VREF = 0V 5 3 R V L = 10kΩ S = 5V 2 E (V) 4 E (V) G G A A T T L 1 L 3 E VO E VO 0 D D VS = ±0.9V 2 -MO -MO N –1 N V 1 S = 1.8V MMO MMO –2 O O C C 0 –3 G = 100 VREF = 0V RL = 5kΩ –1 –4 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
010
–3 –2 –1 0 1 2 3
013
OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V)
10289- 10289- Figure 10. Input Common-Mode Voltage vs. Output Voltage, Figure 13. Input Common-Mode Voltage vs. Output Voltage, G = 1, VREF = 0 V, VS = 5 V and VS = 1.8 V, RL = 10 kΩ to Ground G = 100, VREF = 0 V, VS = ±2.5 V and VS = ±0.9 V, RL = 5 kΩ to Ground
6 5.0 G = 100 –40°C VREF = 0V 4.5 +25°C 5 RL = 10kΩ V +85°C S = 5V 4.0 +105°C +125°C E (V) 4 G 3.5 A T L 3.0 3 E VO V (V) 2.5 D S = 1.8V INV 2 -MO 2.0 N 1 1.5 MMO O C 1.0 0 0.5 –1 0
1
0 1 2 3 4 5 6
1 0
1.8 2.3 2.8 3.3 3.8 4.3 4.8
014
OUTPUT VOLTAGE (V) SUPPLY VOLTAGE (V)
10289- 10289- Figure 11. Input Common-Mode Voltage vs. Output Voltage, Figure 14. Maximum Differential Input vs. Supply Voltage G = 100, V REF = 0 V, VS = 5 V and VS = 1.8 V, RL = 10 kΩ to Ground
4 5 G = 1 VS = ±2.5V V 3 REF = 0V 4 RL = 5kΩ –VS 3 2 E (V) A) G n 2 A ( T 1 L NT 1 IB– E VO 0 D VS = ±0.9V CURRE 0 -MO AS I –1 B+ N –1 BI UT MMO –2 –2 O INP C +VS –3 –3 –4 REPRESENTATIVE SAMPLE –4 –5 –3 –2 –1 0 1 2 3
012
–3.0 –2.5 –2.0 –1.5 –1.0 –0.5 0 0.5 1.0 1.5 2.0 2.5 3.0
015
VOLTAGE OUTPUT (V)
10289-
COMMON-MODE VOLTAGE (V)
10289- Figure 12. Input Common-Mode Voltage vs. Output Voltage, Figure 15. Input Bias Current vs. Common-Mode Voltage G = 1, VREF = 0 V, VS = ±2.5 V and VS = ±0.9 V, RL = 5 kΩ to Ground Rev. 0 | Page 10 of 28 Document Outline Features Applications General Description Pin Configuration Table of Contents Revision History Specifications Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Theory of Operation Architecture Setting the Gain Gain Accuracy Clock Feedthrough Input Voltage Range Input Protection Filtering Radio Frequency Interference Using the Reference Pin Layout Common-Mode Rejection Ratio over Frequency Power Supplies Reference Input Bias Current Return Path Applications Information Battery Current Monitor Programmable Gain In-Amp AD8237 in an ECG Front End Outline Dimensions Ordering Guide