OP284EPZ Analog Devices Inc, OP284EPZ Datasheet
OP284EPZ
Specifications of OP284EPZ
Related parts for OP284EPZ
OP284EPZ Summary of contents
Page 1
FEATURES Single-supply operation Wide bandwidth: 4 MHz Low offset voltage: 65 μV Unity-gain stable High slew rate: 4.0 V/μs Low noise: 3.9 nV/√Hz APPLICATIONS Battery-powered instrumentation Power supply control and protection Telecommunications DAC output amplifier ADC input buffer GENERAL DESCRIPTION ...
Page 2
OP184/OP284/OP484 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Pin Configurations ........................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Electrical Characteristics............................................................. 3 Absolute Maximum Ratings............................................................ 6 Thermal Resistance ...................................................................... 6 ESD Caution.................................................................................. 6 Typical Performance Characteristics ...
Page 3
SPECIFICATIONS ELECTRICAL CHARACTERISTICS 25°C, unless otherwise noted Table 2. Parameter INPUT CHARACTERISTICS 1 Offset Voltage, OP184/OP284E Grade 1 Offset Voltage, OP184/OP284F Grade 1 Offset Voltage, OP484E Grade ...
Page 4
OP184/OP284/OP484 25°C, unless otherwise noted Table 3. Parameter INPUT CHARACTERISTICS Offset Voltage, OP184/OP284E Grade Offset Voltage, OP184/OP284F Grade 1 Offset Voltage, OP484E Grade Offset Voltage, OP484F Grade ...
Page 5
V = ±15 25°C, unless otherwise noted Table 4. Parameter INPUT CHARACTERISTICS 1 Offset Voltage, OP184/OP284E Grade 1 Offset Voltage, OP184/OP284F Grade 1 Offset Voltage, OP484E Grade Offset Voltage, OP484F ...
Page 6
OP184/OP284/OP484 ABSOLUTE MAXIMUM RATINGS Table 5. Parameter Supply Voltage Input Voltage 1 Differential Input Voltage Output Short-Circuit Duration to GND Storage Temperature Range P-Suffix, S-Suffix Packages Operating Temperature Range OP184/OP284/OP484E/OP484F Junction Temperature Range P-Suffix, S-Suffix Packages Lead Temperature (Soldering 60 ...
Page 7
TYPICAL PERFORMANCE CHARACTERISTICS 300 25°C 270 1.5V CM 240 210 180 150 120 –100 –75 –50 –25 0 INPUT OFFSET VOLTAGE (µV) Figure 5. Input Offset Voltage ...
Page 8
OP184/OP284/OP484 500 400 300 200 100 0 –100 –200 –300 –400 –500 –15 –10 –5 0 COMMON-MODE VOLTAGE (V) Figure 11. Input Bias Current vs. Common-Mode Voltage 1000 V = ±15V S SOURCE 100 SINK 10 0.01 0.1 LOAD CURRENT ...
Page 9
FREQUENCY (Hz) Figure 17. Open-Loop Gain and Phase vs. Frequency (No Load –10 –20 –30 10k 100k 1M ...
Page 10
OP184/OP284/OP484 300 25°C 270 A 240 A = +100 V 210 180 150 120 100 1k 10k FREQUENCY (Hz) Figure 23. Output Impedance vs. Frequency 300 V = 15V ...
Page 11
T = 25°C A 140 120 100 ±15V –20 –40 10 100 1k 10k 100k FREQUENCY (Hz) Figure 29. PSRR vs. Frequency ±2. 25°C, ...
Page 12
OP184/OP284/OP484 0.1% 0.01% 0 –2 –4 –6 –8 – SETTLING TIME (µs) Figure 35. Step Size vs. Settling Time 0 ±2. 10M V 0.2 0.1 0 ...
Page 13
Figure 41. Small Signal Transient Response 100 +200mV 90 0V –200mV 10 0% 100mV Figure 42. Small Signal Transient Response 0 ±1. LOAD T ...
Page 14
OP184/OP284/OP484 APPLICATIONS INFORMATION FUNCTIONAL DESCRIPTION The OP184/OP284/OP484 are precision single-supply, rail-to-rail operational amplifiers. Intended for the portable instrumentation marketplace, the OPx84 family of devices combine the attributes of precision, wide bandwidth, and low noise to make them a superb choice ...
Page 15
INPUT VOLTAGE (V) Figure 46. Input Overvoltage I-V Characteristics of the OP284 As shown in Figure 46, internal p-n junctions to the ...
Page 16
OP184/OP284/OP484 As a design aid, Figure 49 shows the total equivalent input noise of the OP284 and the total thermal noise of a resistor for com- parison. Note that for source resistance less than 1 kΩ, the equivalent input noise ...
Page 17
Resistor networks should be used in this circuit for R2 and R3 because they exhibit the necessary relative tolerance matching for good performance. Matched networks also exhibit tight relative resistor temperature coefficients for good circuit temperature stability. Trimming Potentiometer P1 ...
Page 18
OP184/OP284/OP484 HIGH-SIDE CURRENT MONITOR In the design of power supply control circuits, a great deal of design effort is focused on ensuring the long-term reliability of a pass transistor over a wide range of load current conditions result, ...
Page 19
LOW DROPOUT REGULATOR WITH CURRENT LIMITING Many circuits require stable, regulated voltages relatively close in potential to an unregulated input source. This low dropout type of regulator is readily implemented with a rail-to-rail output op amp, such as the OP284, ...
Page 20
OP184/OP284/OP484 Obviously desirable to keep this comparison voltage small because it becomes a significant portion of the overall dropout voltage. Here, the 20 mV reference is higher than the typical offset of the OP284 but is still reasonably ...
Page 21
OUTLINE DIMENSIONS 0.400 (10.16) 0.365 (9.27) 0.355 (9.02 0.280 (7.11) 0.250 (6.35) 1 0.240 (6.10) 4 0.100 (2.54) BSC 0.060 (1.52) MAX 0.210 (5.33) MAX 0.015 0.150 (3.81) (0.38) 0.015 (0.38) MIN 0.130 (3.30) GAUGE PLANE 0.115 (2.92) ...
Page 22
... OP184FSZ −40°C to +125°C OP184FSZ-REEL −40°C to +125°C OP184FSZ-REEL7 −40°C to +125°C OP284EP −40°C to +125°C OP284EPZ −40°C to +125°C OP284ES −40°C to +125°C OP284ES-REEL −40°C to +125°C OP284ES-REEL7 −40°C to +125°C OP284ESZ − ...
Page 23
NOTES Rev Page OP184/OP284/OP484 ...
Page 24
OP184/OP284/OP484 NOTES ©1996–2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D00293-0-10/10(I) Rev Page ...