Datasheet AD712 (Analog Devices)

Precision, Low Cost, High Speed BiFET Dual Op Amp AD712
FEATURES CONNECTION DIAGRAM Enhanced replacement for LF412 and TL082 AMPLIFIER NO. 1 AMPLIFIER NO. 2 AC performance OUTPUT 1 8 V+ Settles to ±0.01% in 1.0 μs INVERTING 2 7 OUTPUT INPUT 16 V/μs minimum slew rate (AD712J) NONINVERTING INVERTING 3 6 3 MHz minimum unity-gain bandwidth (AD712J) INPUT INPUT
01
V– NONINVERTING 4 5
0
DC performance
3-
AD712 INPUT
82 00
200 V/mV minimum open-loop gain (AD712K)
Figure 1. 8-Lead PDIP (N-Suffix),
Surface mount available in tape and reel in
SOIC_N (R-Suffix), and CERDIP (Q-Suffix)
accordance with the EIA-481A standard MIL-STD-883B parts available Single version available: AD711 Quad version: AD713 Available in PDIP, SOIC_N, and CERDIP packages GENERAL DESCRIPTION
The AD712 is a high speed, precision, monolithic operational Extended reliability PLUS screening is available, specified amplifier offering high performance at very modest prices. Its over the commercial and industrial temperature ranges. PLUS very low offset voltage and offset voltage drift are the results of screening includes 168-hour burn-in, in addition to other advanced laser wafer trimming technology. These performance environmental and physical tests. benefits allow the user to easily upgrade existing designs that use older precision BiFETs and, in many cases, bipolar op amps. The AD712 is available in 8-lead PDIP, SOIC_N, and CERDIP packages. The superior ac and dc performance of this op amp makes it suitable for active filter applications. With a slew rate of 16 V/μs
PRODUCT HIGHLIGHTS
and a settling time of 1 μs to ±0.01%, the AD712 is ideal as a buffer for 12-bit digital-to-analog converters (DACs) and analog- 1. The AD712 offers excellent overall performance at very to-digital converters (ADCs) and as a high speed integrator. competitive prices. The settling time is unmatched by any similar IC amplifier. 2. The Analog Devices, Inc., advanced processing technology and 100% testing guarantee a low input offset voltage (3 The combination of excellent noise performance and low input mV maximum, J grade). Input offset voltage is specified in current also make the AD712 useful for photo diode preamps. the warmed-up condition. Common-mode rejection of 88 dB and open-loop gain of 400 V/mV ensure 12-bit performance even in high speed 3. Together with precision dc performance, the AD712 offers unity-gain buffer circuits. excellent dynamic response. It settles to ±0.01% in 1 μs and has a minimum slew rate of 16 V/μs. Thus, this device is The AD712 is pinned out in a standard op amp configuration ideal for applications such as DAC and ADC buffers that and is available in seven performance grades. The AD712J and require a combination of superior ac and dc performance. AD712K are rated over the commercial temperature range of 0°C to 70°C. The AD712A is rated over the industrial tempera- ture range of −40°C to +85°C. The AD712S is rated over the military temperature range of −55°C to +125°C and is available processed to MIL-STD-883B, Rev. C.
Rev. H 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 ©1986
–2010
Analog Devices, Inc. All rights reserved.
Document Outline FEATURES GENERAL DESCRIPTION CONNECTION DIAGRAM PRODUCT HIGHLIGHTS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION TYPICAL PERFORMANCE CHARACTERISTICS SETTLING TIME OPTIMIZING SETTLING TIME OP AMP SETTLING TIME—A MATHEMATICAL MODEL APPLICATIONS INFORMATION GUARDING DAC CONVERTER APPLICATIONS NOISE CHARACTERISTICS DRIVING THE ANALOG INPUT OF AN ADC DRIVING A LARGE CAPACITIVE LOAD FILTERS ACTIVE FILTER APPLICATIONS SECOND-ORDER LOW-PASS FILTER 9-POLE CHEBYCHEV FILTER OUTLINE DIMENSIONS ORDERING GUIDE