ltc6910-2 Linear Technology Corporation, ltc6910-2 Datasheet - Page 12

• Manufacturer Part Number: ltc6910-2
• Description: Digitally Controlled Programmable Gain Amplifiers In Sot-23
• Manufacturer: Linear Technology Corporation

LTC6910-1
LTC6910-2/LTC6910-3
TYPICAL PERFOR A CE CHARACTERISTICS
12
–100
–0.1
–0.2
–30
–80
–90
–40
–50
–60
–70
0.1
0.2
–V
–V
–V
–V
0
+V
+V
+V
+V
–50
0
S
S
S
S
S
S
S
S
LTC6910-2 Distortion with Light
Loading (R
LTC6910-2 Gain Shift
vs Temperature
V
V
THD MEASURES HD2 AND HD3
V
OUTPUT UNLOADED
GAIN = 8
GAIN = 1
– 0.5
– 1.0
– 1.5
– 2.0
+ 2.0
+ 1.5
+ 1.0
+ 0.5
S
OUT
S
+V
–V
= 2.5V
= 2.5V
S
S
= 1V
0.01
LTC6910-2 Output Voltage Swing
vs Load Current
GAIN = 64
V
50
RMS
S
0
GAIN = 64
= 2.5V
TEMPERATURE ( C)
GAIN = 8
FREQUENCY (kHz)
L
(2.83V
125 C
25 C
–40 C
= 10k)
0.1
OUTPUT CURRENT (mA)
100
P-P
50
GAIN = 1
)
1
150
100
W
SOURCE
6910 G16
SINK
6910 G10
10
200
U
150
3
0.003
0.001
1
0.3
0.1
0.03
0.01
6910 G13
100
–10
–100
–30
–40
–60
–80
–90
50
40
30
20
10
–50
–70
0
100
90
80
70
60
50
40
30
20
10
LTC6910-2 Frequency Response
0
GAIN OF 64
GAIN OF 32
GAIN OF 16
GAIN OF 8
GAIN OF 4
GAIN OF 2
GAIN OF 1
V
V
0
LTC6910-2 Distortion with Heavy
Loading (R
V
V
THD MEASURES HD2 AND HD3
S
IN
0.1
S
OUT
LTC6910-2 Power Supply
Rejection vs Frequency
= 5V
= 10mV
= 2.5V
= 1V
1k
50
RMS
RMS
GAIN = 64
GAIN = 8
GAIN = 1
FREQUENCY (Hz)
1
FREQUENCY (kHz)
–SUPPLY
+SUPPLY
L
(2.83V
10k
FREQUENCY (kHz)
= 500 )
100
P-P
100k
)
10
150
1M
100
V
GAIN = 1
(LTC6910-2)
S
6910 G17
6910 G11
= 2.5V
10M
6910 G14
200
1000
3
1
0.1
0.01
0.003
0.001
0.3
0.03
100
8.0
7.5
7.0
6.5
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
–100
–110
10
–20
–30
–40
–50
–60
–70
–80
–90
0
1
•
•
1
1
0.01
LTC6910-2 –3dB Bandwidth
vs Gain Setting
LTC6910-2 Noise Density
vs Frequency
INPUT-REFERRED
V
T
LTC6910-2 THD + Noise
vs Input Voltage
S
A
f
V
NOISE BW = 22kHz
IN
S
= 25 C
= 2.5V
GAIN
SETTING = 64
= 1kHz
= 5V
•
•
INPUT VOLTAGE (V
•
•
FREQUENCY (kHz)
0.1
•
•
GAIN
10
10
GAIN SETTING = 1
•
•
V
•
•
GAIN = 1
GAIN = 8
GAIN = 64
IN
V
1
V
P-P
S
S
= 10mV
GAIN
SETTING = 8
•
•
= 2.7V
)
= 5V
6910123fa
6910 G12
6910 G18
• •
6910 G15
RMS
100
100
10