ltc6910-2 Linear Technology Corporation, ltc6910-2 Datasheet - Page 11

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

TYPICAL PERFOR A CE CHARACTERISTICS
–100
–0.1
–0.2
–30
–40
–50
–60
–80
–90
–70
0.2
0.1
+V
+V
+V
+V
–V
–V
–V
–V
0
–50
0
S
S
S
S
S
S
S
S
LTC6910-1 Distortion with Light
Loading (R
LTC6910-1 Gain Shift
vs Temperature
V
V
THD MEASURES HD2 AND HD3
V
OUTPUT UNLOADED
GAIN = 10
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
0.01
= 1V
LTC6910-1 Output Voltage Swing
vs Load Current
GAIN = 100
V
50
RMS
S
0
GAIN = 100
GAIN = 10
= 2.5V
TEMPERATURE ( C)
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 G07
SINK
6910 G01
10
U
200
150
3
1
0.1
0.01
0.003
0.001
0.3
0.03
6910 G04
100
–100
–10
–30
–90
50
40
30
20
10
–40
–50
–60
–80
–70
0
100
90
80
70
60
50
40
30
20
10
LTC6910-1 Frequency Response
GAIN OF 100
GAIN OF 50
GAIN OF 20
GAIN OF 10
GAIN OF 5
GAIN OF 2
GAIN OF 1
0
0
LTC6910-1 Distortion with Heavy
Loading (R
V
V
THD MEASURES HD2 AND HD3
0.1
S
OUT
LTC6910-1 Power Supply
Rejection vs Frequency
= 2.5V
= 1V
1k
50
RMS
GAIN = 100
GAIN = 10
GAIN = 1
1
FREQUENCY (Hz)
FREQUENCY (kHz)
L
(2.83V
10k
–SUPPLY
FREQUENCY (kHz)
= 500 )
V
100
S
P-P
= 5V, V
100k
10
)
+SUPPLY
IN
150
= 5mV
1M
100
V
GAIN = 1
(LTC6910-1)
S
6910 G08
6910 G02
RMS
= 2.5V
LTC6910-2/LTC6910-3
10M
6910 G05
200
1000
3
0.003
0.001
1
0.3
0.1
0.03
0.01
100
8.0
7.5
7.0
6.5
5.5
5.0
4.5
4.0
3.5
3.0
2.5
1.5
1.0
0.5
–100
–110
6.0
2.0
10
–20
–30
–40
–50
–60
–70
–80
–90
0
1
•
•
1
0.01
1
LTC6910-1 –3dB Bandwidth
vs Gain Setting
LTC6910-1 Noise Density
vs Frequency
INPUT-REFERRED
V
T
LTC6910-1 THD + Noise
vs Input Voltage
A
S
= 25 C
= 2.5V
•
•
INPUT VOLTAGE (V
FREQUENCY (kHz)
LTC6910-1
0.1
•
•
GAIN SETTING = 1
GAIN SETTING = 100
GAIN
10
10
GAIN SETTING = 10
•
•
f
V
NOISE BW = 22kHz
IN
•
•
S
GAIN = 100
GAIN = 10
V
•
•
= 1kHz
= 5V
GAIN = 1
1
P-P
IN
V
V
S
S
= 5mV
)
= 2.7V
= 5V
11
6910123fa
•
•
6910 G03
6910 G09
6910 G06
RMS
100
100
•
•
10