ada4528-1 Analog Devices, Inc., ada4528-1 Datasheet
ada4528-1
Available stocks
Related parts for ada4528-1
ada4528-1 Summary of contents
Page 1
... V is well suited for applications in which error sources cannot be tolerated. TheADA4528-1 has a wide operating supply range of 2 5.5 V, high gain, and excellent CMRR and PSRR specifications that make it ideal for precision amplification of low level signals, such as position and pressure sensors, strain gages, and medical instrumentation ...
Page 2
... ADA4528-1 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Pin Configuration............................................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Electrical Characteristics—2.5 V Operation ............................ 3 Electrical Characteristics—5 V Operation................................ 4 Absolute Maximum Ratings............................................................ 5 Thermal Resistance ...................................................................... 5 REVISION HISTORY 1/11—Revision 0: Initial Version ESD Caution...................................................................................5 Typical Performance Characteristics ..............................................6 Applications Information .............................................................. 15 Input Protection ......................................................................... 15 Rail-to-Rail Input and Output.................................................. 15 Noise Considerations ...
Page 3
... kHz +100 kHz +100 +100 kHz +100 n V Rev Page ADA4528-1 Min Typ Max 0.3 2.5 4 0.002 0.015 220 400 600 440 800 1 0 2.5 135 158 116 130 140 126 125 ...
Page 4
... ADA4528-1 ELECTRICAL CHARACTERISTICS—5 V OPERATION +25°C, unless otherwise specified Table 3. Parameter INPUT CHARACTERISTICS Offset Voltage Offset Voltage Drift Input Bias Current Input Offset Current Input Voltage Range Common-Mode Rejection Ratio Open-Loop Gain Input Resistance, Differential Mode ...
Page 5
... V SY ±10 mA Table 5. Thermal Resistance ±V SY Package Type Indefinite 8-Lead MSOP (RM-8) −65°C to +150°C −40°C to +125°C −65°C to +150°C ESD CAUTION 300°C Rev Page ADA4528-1 θ θ Unit JA JC 142 45 °C/W ...
Page 6
... ADA4528-1 TYPICAL PERFORMANCE CHARACTERISTICS T = 25°C, unless otherwise noted. A 100 0.2 –1.0 –0.8 –0.6 –0.4 –0.2 V (µV) OS Figure 2. Input Offset Voltage Distribution TCV (nV/°C) OS Figure 3. Input Offset Voltage Drift Distribution 1 ...
Page 7
... V = 2.5V SY –800 2.0 2.5 Figure 12. Input Bias Current vs. Common-Mode Voltage 10 1 100m 10m 1m 0.1m 0.001 10 100 Figure 13. Output Voltage (V Rev Page ADA4528 – B – TEMPERATURE (°C) Figure 11. Input Bias Current vs. Temperature +85°C – ...
Page 8
... ADA4528 2. 100m –40°C +25°C 10m +85°C +125°C 1m 0.1m 0.001 0.01 0.1 1 LOAD CURRENT (mA) Figure 14. Output Voltage ( Supply Rail vs. Load Current 2. 2kΩ 10kΩ –50 – TEMPERATURE (°C) Figure 15. Output Voltage ( Supply Rail vs. Temperature ...
Page 9
... –10 –20 1M 10M Rev Page ADA4528 5. 2.5V SY – TEMPERATURE (°C) Figure 23. Supply Current vs. Temperature PHASE GAIN 10kΩ 100pF L 10k 100k 1M FREQUENCY (Hz) Figure 24 ...
Page 10
... ADA4528-1 160 140 120 100 1. 100 1k 10k 100k FREQUENCY (Hz) Figure 26. CMRR vs. Frequency 120 100 80 60 PSRR+ 40 PSRR– –20 100 1k 10k 100k FREQUENCY (Hz) Figure 27. PSRR vs. Frequency 2.5V SY 100 100 0.1 0.01 0.001 100 ...
Page 11
... Figure 36. Small Signal Transient Response 100mV p 10kΩ 1000 1 Figure 37. Small Signal Overshoot vs. Load Capacitance Rev Page ADA4528 ±2. p 10kΩ 100pF L TIME (20µs/DIV ±2. 100mV p 10kΩ ...
Page 12
... ADA4528-1 0.5 INPUT 0 –0 ±1.25V – 187.5mV 10kΩ 100pF L OUTPUT TIME (10µs/DIV) Figure 38. Positive Overload Recovery 0.5 INPUT 0 –0 ±1.25V 187.5mV – 10kΩ 100pF L OUTPUT TIME (10µs/DIV) Figure 39. Negative Overload Recovery ...
Page 13
... FREQUENCY (Hz) Figure 46. Current Noise Density vs. Frequency +7.5mV 0 –7.5mV 100 10 1 10k 0.1 10k 100k 1 Rev Page ADA4528 10kΩ 100pF L INPUT ERROR BAND OUTPUT TIME (10µs/DIV) Figure 47. Negative Settling Time to 0. 100 V ...
Page 14
... ADA4528 2. 100 TIME (1s/DIV) Figure 50. 0 Noise 10 1 0 1kHz R = 10kΩ L 0.001 0.001 0.01 0.1 AMPLITUDE (V p-p) Figure 51. THD + Noise vs. Amplitude 2. 10kΩ 80kHz LOW-PASS FILTER p-p IN 0.1 0.01 0.001 10 100 1k FREQUENCY (Hz) Figure 52. THD + Noise vs. Frequency ...
Page 15
... V to 5.5 V. Figure 56 shows the input and output waveforms of the ADA4528-1 configured as a unity- gain buffer with a supply voltage of ±2.5 V and a resistive load of 10 kΩ. With an input voltage of ±2.5 V, the ADA4528-1 allows the output to swing very close to both rails. Additionally, it does not exhibit phase reversal. ...
Page 16
... Figure 59 shows the voltage noise density of the ADA4528-1 configured in unity gain. A noise spike of 50 nV/√Hz can be seen at the chopping frequency of 200 kHz. This noise spike is significant when the op amp has a closed-loop frequency that is higher than the chopping frequency ...
Page 17
... PRINTED CIRCUIT BOARD LAYOUT The ADA4528 high precision device with ultralow offset voltage and noise. Therefore, care must be taken in the design of the printed circuit board (PCB) layout to achieve optimum performance of the ADA4528-1 at board level. To avoid leakage currents, keep the surface of the board clean and free of moisture ...
Page 18
... ADA4528-1 OUTLINE DIMENSIONS IDENTIFIER ORDERING GUIDE 1 Model Temperature Range ADA4528-1ARMZ −40°C to +125°C ADA4528-1ARMZ-R7 −40°C to +125°C ADA4528-1ARMZ-RL −40°C to +125° RoHS Compliant Part. 3.20 3.00 2.80 5. 3.20 4.90 3.00 4.65 1 2.80 4 PIN 1 0.65 BSC 0.95 15° MAX 0.85 1.10 MAX 0.75 0.15 0.23 6° 0.40 0.05 0.09 0° 0.25 COPLANARITY 0.10 COMPLIANT TO JEDEC STANDARDS MO-187-AA Figure 61 ...
Page 19
... NOTES Rev Page ADA4528-1 ...
Page 20
... ADA4528-1 NOTES ©2011 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D09437-0-1/11(0) Rev Page ...