Datasheet

AD605
Rev. F | Page 7 of 24
TYPICAL PERFORMANCE CHARACTERISTICS (PER CHANNEL)
V
REF
= 2.5 V (20 dB/V scaling), f = 1 MHz, R
L
= 500 Ω, C
L
= 5 pF, T
A
= 25°C, V
SS
= 5 V.
40
–20
30
20
10
0
–10
00541-003
VGN (V)
GAIN (dB)
0.1 0.5 0.9 1.3 1.7 2.1 2.5 2.9
–40°C, +25°C, +85°C
Figure 3. Gain vs. VGN
VGN (V)
GAIN (dB)
50
–20
40
20
10
0
–10
30
FBK (OPEN)
FBK (SHORT)
00541-004
0.1 0.5 0.9 1.3 1.7 2.1 2.5 2.9
Figure 4. Gain vs. VGN for Different Gain Ranges
30dB/V
(V
REF
= 1.67V)
20dB/V
(V
REF
= 2.50V)
ACTUAL
ACTUAL
40
–20
30
20
10
0
–10
00541-005
VGN (V)
GAIN (dB)
0.1 0.5 0.9 1.3 1.7 2.1 2.5 2.9
Figure 5. Gain vs. VGN for Different Gain Scalings
GAIN SCALING (dBV)
40.0
37.5
20.0
30.0
27.5
25.0
22.5
35.0
32.5
THEORETICAL
ACTUAL
V
REF
(V)
1.25 1.50 1.75 2.00 2.25 2.50
00541-006
Figure 6. Gain Scaling vs. V
REF
GAIN ERROR (dB)
3.0
2.5
–3.0
0.2 0.7 1.2 1.7 2.2 2.7
–1.0
–1.5
–2.0
–2.5
2.0
1.0
1.5
–0.5
0.5
0
VGN (V)
+25°C
+85°C
–40°C
00541-007
Figure 7. Gain Error vs. VGN at Three Temperatures
VGN (V)
GAIN ERROR (dB)
2.0
1.5
–2.0
0.2 0.7 1.2 1.7 2.2 2.7
0
–0.5
–1.0
–1.5
1.0
0.5
f = 5MHz
f = 10MHz
00541-008
f = 1MHz
Figure 8. Gain Error vs. VGN at Three Frequencies