Ultra Precision, 36 V, 2.8 nV/√Hz
Dual Rail-to-Rail Output Op Amp
AD8676
FEATURES
PIN CONFIGURATIONS
Very low voltage noise 2.8 nV/√Hz @ 1 kHz
Rail-to-rail output swing
Low input bias current: 2 nA maximum
Very low offset voltage: 12 μV typical
Low input offset drift: 0.6 μV/°C maximum
Very high gain: 120 dB
OUT A
–IN A
+IN A
V–
1
2
3
4
8
7
6
5
V+
AD8676
OUT B
–IN B
+IN B
TOP VIEW
(Not to Scale)
Figure 1. 8-Lead SOIC_N (R-8)
Wide bandwidth: 10 MHz typical
±± V to ±18 V operation
1
2
3
4
8
7
6
5
OUT A
–IN A
+IN A
V–
V+
OUT B
–IN B
+IN B
AD8676
TOP VIEW
(Not to Scale)
APPLICATIONS
Precision instrumentation
PLL filters
Figure 2. 8-Lead MSOP (RM-8)
Laser diode control loops
Strain gage amplifiers
Medical instrumentation
Thermocouple amplifiers
GENERAL DESCRIPTION
instrumentation, and strain gage amplifiers benefit greatly from
the very low noise, low input bias current, and wide bandwidth.
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.
The AD8676 precision operational amplifier offers ultralow
offset, drift, and voltage noise combined with very low input
bias currents over the full operating temperature range. The
AD8676 is a precision, wide bandwidth op amp featuring rail-to-
rail output swings and very low noise. Operation is fully
specified from ±± ꢀ to ±ꢁ± ꢀ.
The smaller packages and low power consumption afforded by
the AD8676 allow maximum channel density or minimum
board size for space-critical equipment.
The AD8676 features a rail-to-rail output like that of the OPꢁ84,
but with wide bandwidth and even lower voltage noise, com-
bined with the precision and low power consumption like that
of the industry-standard OP07 amplifier. Unlike other low
noise, rail-to-rail op amps, the AD8676 has very low input bias
current and low input current noise.
The AD8676 is specified for the extended industrial temperature
range (−40°C to +ꢁ2±°C). The AD8676 is available in the 8-lead
MSOP, and the popular 8-lead, narrow SOIC; both of which are
lead-free packages. MSOP packaged devices are only available
in tape and reel format.
With typical offset voltage of only ꢁ2 μꢀ, offset drift of 0.2 μꢀ/°C,
and noise of only 0.ꢁ0 ꢂꢀ p-p (0.ꢁ Hz to ꢁ0 Hz), the AD8676 is
perfectly suited for applications where large error sources
cannot be tolerated. Precision instrumentation, PLL and other
precision filter circuits, position and pressure sensors, medical
For the single version of this ultraprecision rail-to-rail op amp,
see the AD867± data sheet.
Rev. 0
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