AD605
Rev. F | Page 7 of 24
TYPICAL PERFORMANCE CHARACTERISTICS (PER CHANNEL)
VREF = 2.5 V (20 dB/V scaling), f = 1 MHz, RL = 500 Ω, CL = 5 pF, TA = 25°C, VSS = 5 V.
40
–20
30
20
10
0
–10
00
54
1-
00
3
VGN (V)
GA
IN
(
d
B
)
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)
GA
IN
(
d
B
)
50
–20
40
20
10
0
–10
30
FBK (OPEN)
FBK (SHORT)
00
54
1-
0
04
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
(VREF = 1.67V)
20dB/V
(VREF = 2.50V)
ACTUAL
40
–20
30
20
10
0
–10
00
54
1-
00
5
VGN (V)
GA
IN
(
d
B
)
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
GA
IN
S
C
A
L
IN
G
(
d
B
V
)
40.0
37.5
20.0
30.0
27.5
25.0
22.5
35.0
32.5
THEORETICAL
ACTUAL
VREF (V)
1.25
1.50
1.75
2.00
2.25
2.50
00
54
1-
0
06
Figure 6. Gain Scaling vs. VREF
G
AI
N
E
R
RO
R
(
d
B)
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
00
54
1-
0
07
Figure 7. Gain Error vs. VGN at Three Temperatures
VGN (V)
G
AI
N
E
RR
O
R
(
d
B)
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
00
54
1-
0
08
f = 1MHz
Figure 8. Gain Error vs. VGN at Three Frequencies