AD8278ARZ Analog Devices Inc, AD8278ARZ Datasheet
AD8278ARZ
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AD8278ARZ Summary of contents
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FEATURES Wide input range beyond supplies Rugged input overvoltage protection Low supply current: 200 μA maximum Low power dissipation Bandwidth: 1 MHz (G = ½) CMRR minimum ...
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AD8278 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Absolute Maximum Ratings ............................................................ 7 Thermal Resistance ...................................................................... 7 Maximum Power Dissipation ..................................................... 7 ...
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SPECIFICATIONS V = ± ± 25° REF A otherwise noted. Table 2. Parameter Conditions INPUT CHARACTERISTICS 1 System Offset vs. Temperature T = −40°C to +85°C A Average Temperature ...
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AD8278 V = ± ± 25° REF A otherwise noted. Table 3. Parameter Conditions INPUT CHARACTERISTICS 1 System Offset vs. Temperature T = −40°C to +85°C A Average Temperature ...
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<± midsupply REF otherwise noted. Table 4. Parameter Conditions INPUT CHARACTERISTICS 1 System Offset vs. Temperature T = −40°C to +85°C A Average Temperature Coefficient T = −40°C to +85°C ...
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AD8278 <± midsupply REF otherwise noted. Table 5. Parameter Conditions INPUT CHARACTERISTICS 1 System Offset vs. Temperature T = −40°C to +85°C A Average Temperature Coefficient T = −40°C to ...
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ABSOLUTE MAXIMUM RATINGS Table 6. Parameter Supply Voltage Maximum Voltage at Any Input Pin Minimum Voltage at Any Input Pin Storage Temperature Range Specified Temperature Range Package Glass Transition Temperature (T Stresses above those listed under Absolute Maximum Ratings may ...
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AD8278 PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS REF AD8278 –IN + TOP VIEW +IN OUT 3 6 (Not to Scale) –VS SENSE CONNECT Figure 3. MSOP Pin Configuration Table 8. Pin ...
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TYPICAL PERFORMANCE CHARACTERISTICS V = ± 25° kΩ connected to ground ½ difference amplifier configuration, unless otherwise noted 600 500 400 300 200 100 0 –150 –100 –50 0 ...
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AD8278 2.7V S –2 –4 –6 –8 –10 –0.5 0.5 1.5 2.5 OUTPUT VOLTAGE (V) Figure 11. Input Common-Mode Voltage vs. Output Voltage and 2.7 V ...
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GAIN = GAIN = ½ –6 –12 –18 –24 –30 –36 100 1k 10k 100k FREQUENCY (Hz) Figure 17. Gain vs. Frequency, +2.7 V Single Supply 120 GAIN = 2 100 GAIN = ½ 80 ...
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AD8278 +V S –0.5 –1.0 –1.5 –2.0 +2.0 +1.5 +1.0 +0.5 – OUTPUT CURRENT (mA) Figure 23. Output Voltage Swing vs. I and Temperature, V OUT 180 170 160 150 140 130 ...
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OUTPUT VOLTAGE (V) Figure 29. Gain Nonlinearity ± –2 –4 –6 –8 –10 –8 ...
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AD8278 10µs/DIV Figure 35. Large-Signal Step Response ½ 10µs/DIV Figure 36. Large-Signal Step Response ±15V ± 100 1k 10k FREQUENCY (Hz) Figure ...
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CAPACITIVE LOAD (pF) Figure 41. Small-Signal Overshoot vs. Capacitive Load ± ±5V ±15V 10 ±18V 5 ...
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AD8278 THEORY OF OPERATION CIRCUIT INFORMATION The AD8278 consists of a low power, low noise op amp and four laser-trimmed on-chip resistors. These resistors can be externally connected to make a variety of amplifier confi- gurations, including difference, noninverting, and ...
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POWER SUPPLIES The AD8278 operates extremely well over a very wide range of supply voltages. It can operate on a single supply as low and as high under appropriate setup conditions. For best performance, ...
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AD8278 APPLICATIONS INFORMATION CONFIGURATIONS The AD8278 can be configured in several ways difference amplifier or a single-ended amplifier (see Figure 48 to Figure 54). All of these configurations have excellent gain accuracy and gain drift because they rely ...
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As with the other inputs, the reference must be driven with a low impedance source to maintain the internal resistor ratio. An example using the low power, low noise is shown in Figure 55. INCORRECT CORRECT AD8278 REF V V ...
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AD8278 OUTLINE DIMENSIONS 0.25 (0.0098) 0.10 (0.0040) COPLANARITY 5.00 (0.1968) 4.80 (0.1890 6.20 (0.2441) 4.00 (0.1574) 1 5.80 (0.2284) 3.80 (0.1497) 4 1.27 (0.0500) BSC 1.75 (0.0688) 1.35 (0.0532) 8° 0° 0.51 (0.0201) 0.10 0.31 (0.0122) 0.25 (0.0098) ...
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... ORDERING GUIDE Model Temperature Range AD8278ARZ 1 −40°C to +85°C 1 AD8278ARZ-R7 −40°C to +85°C 1 AD8278ARZ-RL −40°C to +85°C 1 AD8278BRZ −40°C to +85°C 1 AD8278BRZ-R7 −40°C to +85°C 1 AD8278BRZ-RL −40°C to +85°C 1 AD8278ARMZ −40°C to +85°C 1 AD8278ARMZ-R7 − ...
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AD8278 NOTES Rev Page ...
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NOTES Rev Page AD8278 ...
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AD8278 NOTES ©2009 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D08308-0-7/09(0) Rev Page ...