Datasheet

Data Sheet AD797
Rev. I | Page 5 of 20
ABSOLUTE MAXIMUM RATINGS
Table 3.
Parameter Ratings
Supply Voltage ±18 V
Input Voltage ±V
S
Differential Input Voltage
1
±0.7 V
Output Short-Circuit Duration Indefinite within
maximum internal
power dissipation
Storage Temperature Range
(N, R Suffix)
−65°C to +125°C
Operating Temperature Range −40°C to +85°C
Lead Temperature (Soldering 60 sec) 300°C
1
The AD797 inputs are protected by back-to-back diodes. To achieve low
noise, internal current-limiting resistors are not incorporated into the design
of this amplifier. If the differential input voltage exceeds ±0.7 V, the input
current should be limited to less than 25 mA by series protection resistors.
Note, however, that this degrades the low noise performance of the device.
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
PIN CONFIGURATION
AD797
TOP VIEW
OFFSET NUL
L
1
–IN
2
+IN
3
–V
S
4
DECOMPENSATION
AND DIS
T
ORTION
NEUTRALIZA
TION
+V
S
OUTPUT
OFFSET NUL
L
8
7
6
5
00846-001
Figure 2. 8-Lead Plastic Dual In-Line Package [PDIP] and
8-Lead Standard Small Outline Package [SOIC]
THERMAL RESISTANCE
θ
JA
is specified for the device soldered on a 4-layer JEDEC
standard printed circuit board (PCB) with zero airflow for the
SOIC package, and a 2-layer JEDEC standard printed circuit
board (PCB) with zero airflow for the PDIP package.
Table 4. Thermal Resistance
Package Type
θ
JA
θ
JC
Unit
8-Lead SOIC (R-8) 120 43 °C/W
8-Lead PDIP (N-8) 103 50 °C/W
ESD CAUTION