Datasheet AD8614, AD8644 (Analog Devices)

Single and Quad 18 V Operational Amplifiers AD8614/AD8644 FEATURES PIN CONFIGURATIONS Unity-gain bandwidth: 5.5 MHz OUT A 5 V+ Low voltage offset: 1.0 mV 1 AD8614 Slew rate: 7.5 V/μs V– 2 TOP VIEW (Not to Scale) Single-supply operation: 5 V to 18 V +IN
01
3 4 –IN
0
High output current: 70 mA
85- 064
Low supply current: 800 μA/amplifier
Figure 1. 5-Lead SOT-23
Stable with large capacitive loads
(RJ-5)
Rail-to-rail inputs and outputs OUT A 1 14 OUT D APPLICATIONS –IN A 2 13 –IN D LCD gamma and VCOM drivers +IN A 3 AD8644 12 +IN D Modems TOP VIEW V+ 4 (Not to Scale) 11 V– Portable instrumentation +IN B 5 10 +IN C Direct access arrangement –IN B 6 9 –IN C
02 0
GENERAL DESCRIPTION OUT B 7 8 OUT C
85- 64 0 The AD8614 (single) and AD8644 (quad) are single-supply, Figure 2. 14-Lead TSSOP (RU-14) 5.5 MHz bandwidth, rail-to-rail amplifiers optimized for LCD monitor applications.
OUT A 1 14 OUT D
They are processed using the Analog Devices, Inc. high voltage,
–IN A 2 13 –IN D
extra fast complementary bipolar (HV XFCB) process. This
+IN A 3 12 +IN D AD8644 V+ 4 TOP VIEW 11 V–
proprietary process includes trench-isolated transistors that
(Not to Scale) +IN B 5 10 +IN C
lower internal parasitic capacitance, which improves gain
–IN B 6 9 –IN C
03 bandwidth, phase margin, and capacitive load drive. The low
OUT B
-0
7 8 OUT C
85 supply current of 800 μA (typical) per amplifier is critical for 064 Figure 3. 14-Lead Narrow Body SOIC portable or densely packed designs. In addition, the rail-to-rail (R-14) output swing provides greater dynamic range and control than standard video amplifiers provide. These products operate from supplies of 5 V to as high as 18 V. The unique combination of an output drive of 70 mA, high slew rates, and high capacitive drive capability makes the AD8614/AD8644 an ideal choice for LCD applications. The AD8614 and AD8644 are specified over the temperature range of –20°C to +85°C. They are available in 5-lead SOT-23, 14-lead TSSOP, and 14-lead SOIC surface-mount packages in tape and reel.
Rev. B Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Tel: 781.329.4700 www.analog.com Trademarks and registered trademarks are the property of their respective owners. Fax: 781.461.3113 ©1999–2007 Analog Devices, Inc. All rights reserved.
Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION PIN CONFIGURATIONS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ELECTRICAL CHARACTERISTICS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION OUTPUT SHORT-CIRCUIT PROTECTION INPUT OVERVOLTAGE PROTECTION OUTPUT PHASE REVERSAL POWER DISSIPATION UNUSED AMPLIFIERS CAPACITIVE LOAD DRIVE DIRECT ACCESS ARRANGEMENT A ONE-CHIP HEADPHONE/MICROPHONE PREAMPLIFIER SOLUTION OUTLINE DIMENSIONS ORDERING GUIDE