Datasheet AD8676 (Analog Devices)

Ultraprecision, 36 V, 2.8 nV/√Hz Dual Rail-to-Rail Output Op Amp Data Sheet AD8676 FEATURES PIN CONFIGURATIONS Very low voltage noise 2.8 nV/√Hz @ 1 kHz OUT A 1 8 V+ Rail-to-rail output swing –IN A 2 AD8676 7 OUT B Low input bias current: 2 nA maximum +IN A 3 TOP VIEW 6 –IN B
01 0
Very low offset voltage: 12 μV typical (Not to Scale) V– 4 5 +IN B
7- 48 06
Low input offset drift: 0.6 μV/°C maximum
Figure 1. 8-Lead SOIC_N (R-8)
Very high gain: 120 dB Wide bandwidth: 10 MHz typical OUT A 1 8 V+ ±5 V to ±18 V operation –IN A 2 AD8676 7 OUT B +IN A 3 TOP VIEW 6 –IN B APPLICATIONS (Not to Scale)
02 0
V– 4 5 +IN B
7- 48 06
Precision instrumentation
Figure 2. 8-Lead MSOP (RM-8)
PLL filters Laser diode control loops Strain gage amplifiers Medical instrumentation Thermocouple amplifiers GENERAL DESCRIPTION
The AD8676 precision operational amplifier offers ultralow The smaller packages and low power consumption afforded by offset, drift, and voltage noise combined with very low input the AD8676 allow maximum channel density or minimum bias currents over the full operating temperature range. The board size for space-critical equipment. AD8676 is a precision, wide bandwidth op amp featuring rail- to-rail output swings and very low noise. Operation is fully The AD8676 is specified for the extended industrial temperature specified from ±5 V to ±15 V. range (−40°C to +125°C). The AD8676 is available in the 8-lead MSOP, and the popular 8-lead, narrow SOIC; both of which are The AD8676 features a rail-to-rail output like that of the OP184, lead-free packages. MSOP packaged devices are only available but with wide bandwidth and even lower voltage noise, com- in tape and reel format. bined with the precision and low power consumption like that of the industry-standard OP07 amplifier. Unlike other low For the single version of this ultraprecision, rail-to-rail op amp, noise, rail-to-rail op amps, the AD8676 has very low input bias see the AD8675 data sheet. current and low input current noise. The AD8675 and AD8676 are members of a growing series of With typical offset voltage of only 12 μV, offset drift of 0.2 μV/°C, low noise op amps offered by Analog Devices, Inc. and noise of only 0.10 μV p-p (0.1 Hz to 10 Hz), the AD8676 is perfectly suited for applications where large error sources
Table 1. Voltage Noise
cannot be tolerated. Precision instrumentation, PLL and other
Package 0.9 nV 1.1 nV 1.8 nV 2.8 nV 3.8 nV
precision filter circuits, position and pressure sensors, medical Single AD797 AD8597 ADA4004-1 AD8675 AD8671 instrumentation, and strain gage amplifiers benefit greatly from Dual AD8599 ADA4004-2 AD8676 AD8672 the very low noise, low input bias current, and wide bandwidth. Quad ADA4004-4 AD8674 Many systems can take advantage of the low noise, dc precision, and rail-to-rail output swing provided by the AD8676 to maxi- mize SNR and dynamic range.
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Document Outline FEATURES APPLICATIONS PIN CONFIGURATIONS GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ELECTRICAL SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE POWER SEQUENCING ESD CAUTION TYPICAL PERFORMANCE CHARACTERISTICS OUTLINE DIMENSIONS ORDERING GUIDE