a
FEATURES
Very High DC Precision
15 V max Offset Voltage
0.1 V/ C max Offset Voltage Drift
0.35 V p-p max Voltage Noise (0.1 Hz to 10 Hz}
8 V/ V min Open-Loop Gain
130 dB min CMRR
120 dB min PSRR
1 nA max Input Bias Current
AC Performance
0.3 V/ s Slew Rate
0.9 MHz Closed-Loop Bandwidth
Dual Version: AD708
Available in Tape and Reel in Accordance with
EIA-481A Standard
Ultralow Drift Op Amp
AD707
CONNECTION DIAGRAMS
TO-99 (H) Package
NULL
8
7
+V
S
NULL
1
–IN
2
6
OUTPUT
+IN
3
AD707
4
5
NC
–V
S
NC = NO CONNECT
NOTE: PIN 4 CONNECTED
TO CASE
Plastic (N) and
Cerdip (Q) Packages
NULL 1
–IN 2
+IN 3
8 NULL
7 +V
S
6 OUTPUT
NULL
–IN
+IN
–V
S
SOIC (R) Package
1
8
NULL
+V
S
OUTPUT
4
AD707
5
NC = NO CONNECT
NC
PRODUCT DESCRIPTION
–V
S
4
AD707
5 NC
The AD707 is a low cost, high precision op amp with state-of-
the-art performance that makes it ideal for a wide range of
precision applications. The offset voltage spec of less than 15
µV
is the best available in a bipolar op amp, and maximum input
offset current is 1.0 nA. The top grade is the first bipolar
monolithic op amp to offer a maximum offset voltage drift of
0.1
µV/°C,
and offset current drift and input bias current drift
are both specified at 25 pA/°C maximum.
The AD707’s open-loop gain is 8 V/µV minimum over the full
±
10 V output range when driving a 1 kΩ load. Maximum input
voltage noise is 350 nV p-p (0.1 Hz to 10 Hz). CMRR and
PSRR are 130 dB and 120 dB minimum, respectively.
The AD707 is available in versions specified over commercial,
industrial and military temperature ranges. It is offered in 8-pin
plastic mini-DIP, small outline (SOIC), hermetic cerdip and
hermetic TO-99 metal can packages. Chips, MIL-STD-883B,
Rev. C, and tape & reel parts are also available.
NC = NO CONNECT
APPLICATION HIGHLIGHTS
1. The AD707’s 13 V/µV typical open-loop gain and 140 dB
typical common-mode rejection ratio make it ideal for
precision instrumentation applications.
2. The precision of the AD707 makes tighter error budgets
possible at a lower cost.
3. The low offset voltage drift and low noise of the AD707 allow
the designer to amplify very small signals without sacrificing
overall system performance.
4. The AD707 can be used where chopper amplifiers are
required, but without the inherent noise and application
problems.
5. The AD707 is an improved pin-for-pin replacement for the
LT1001.
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 rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
© Analog Devices, Inc., 1995
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
AD [ ANALOG DEVICES ]
