Data Sheet AD797
Rev. K | Page 3 of 19
SPECIFICATIONS
T
A
= 25°C and V
S
= ±15 V dc, unless otherwise noted.
Table 2.
AD797A AD797B
Parameter Conditions
Supply
Voltage (V) Min Typ Max Min Typ Max Unit
INPUT OFFSET VOLTAGE ±5 V, ±15 V 25 80 10 40 μV
T
MIN
to T
MAX
50 125/180 30 60 μV
Offset Voltage Drift ±5 V, ±15 V 0.2 1.0 0.2 0.6 μV/°C
INPUT BIAS CURRENT ±5 V, ±15 V 0.25 1.5 0.25 0.9 μA
T
MIN
to T
MAX
0.5 3.0 0.25 2.0 μA
INPUT OFFSET CURRENT ±5 V, ±15 V 100 400 80 200 nA
T
MIN
to T
MAX
120 600/700 120 300 nA
OPEN-LOOP GAIN V
OUT
= ±10 V ±15 V 1 20 2 20 V/μV
R
LOAD
= 2 kΩ 1 6 2 10 V/μV
T
MIN
to T
MAX
1 15 2 15 V/μV
R
LOAD
= 600 Ω 1 5 2 7 V/μV
T
MIN
to T
MAX
14,000 20,000 14,000 20,000 V/V
At 20 kHz
1
DYNAMIC PERFORMANCE
Gain Bandwidth Product G = 1000 ±15 V 110 110 MHz
G = 1000
2
15 V 450 450 MHz
–3 dB Bandwidth G = 10 ±15 V 8 8 MHz
Full Power Bandwidth
1
V
OUT
= 20 V p-p,
R
LOAD
= 1 kΩ
±15 V 280 280 kHz
Slew Rate R
LOAD
= 1 kΩ ±15 V 12.5 20 12.5 20 V/μs
Settling Time to 0.0015% 10 V step ±15 V 800 1200 800 1200 ns
COMMON-MODE REJECTION V
CM
= CMVR ±5 V, ±15 V 114 130 120 130 dB
T
MIN
to T
MAX
110 120 114 120 dB
POWER SUPPLY REJECTION V
S
= ±5 V to ±18 V 114 130 120 130 dB
T
MIN
to T
MAX
110 120 114 120 dB
INPUT VOLTAGE NOISE f = 0.1 Hz to 10 Hz ±15 V 50 50 nV p-p
f = 10 Hz ±15 V 1.7 1.7 2.5 nV/√Hz
f = 1 kHz ±15 V 0.9 1.2 0.9 1.2 nV/√Hz
f = 10 Hz to 1 MHz ±15 V 1.0 1.3 1.0 1.2 μV rms
INPUT CURRENT NOISE f = 1 kHz ±15 V 2.0 2.0 pA/√Hz
INPUT COMMON-MODE
VOLTAGE RANGE
±15 V ±11 ±12 ±11 ±12 V
±5 V ±2.5 ±3 ±2.5 ±3 V
OUTPUT VOLTAGE SWING R
LOAD
= 2 kΩ ±15 V ±12 ±13 ±12 ±13 V
R
LOAD
= 600 Ω ±15 V ±11 ±13 ±11 ±13 V
R
LOAD
= 600 Ω ±5 V ±2.5 ±3 ±2.5 ±3 V
Short-Circuit Current ±5 V, ±15 V 80 80 mA
Output Current
3
±5 V, ±15 V 30 50 30 50 mA
TOTAL HARMONIC
DISTORTION
R
LOAD
= 1 kΩ, C
N
= 50 pF,
f = 250 kHz, 3 V rms
±15 V −98 −90 −98 −90 dB
R
LOAD
= 1 kΩ,
f = 20 kHz, 3 V rms
±15 V −120 −110 −120 −110 dB
