Datasheet

AD811
Rev. E | Page 3 of 20
GENERAL DESCRIPTION (continued)
The AD811 is also excellent for pulsed applications where tran-
sient response is critical. It can achieve a maximum slew rate of
greater than 2500 V/µs with a settling time of less than 25 ns to
0.1% on a 2 V step and 65 ns to 0.01% on a 10 V step.
The AD811 is ideal as an ADC or DAC buffer in data acquisi-
tion systems due to its low distortion up to 10 MHz and its wide
unity gain bandwidth. Because the AD811 is a current feedback
amplifier, this bandwidth can be maintained over a wide range
of gains. The AD811 also offers low voltage and current noise of
1.9 nV/√
Hz
and 20 pA/√
Hz
, respectively, and excellent dc accu-
racy for wide dynamic range applications.
0
0.02
0.04
0.06
0.08
0.10
0.12
0.14
0.16
0.18
0.20
DIFFERENTIAL PHASE (DEGREES)
0
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.10
DIFFERENTIAL GAIN (%)
5 6 7 8 9 101112131415
SUPPLY VOLTAGE (±V)
00866-E-005
R
F
= 649Ω
F
C
= 3.58MHz
100 IRE
MODULATED RAMP
R
L
= 150Ω
PHASE
GAIN
Figure 5. Differential Gain and Phase
–6
–3
0
3
6
9
12
GAIN (dB)
FREQUENCY (MHz)
1 10 100
00866-E-006
V
S
= ±15V
V
S
= ±5V
G = +2
R
L
= 150Ω
R
G
= R
FB
Figure 6. Frequency Response