LTC6910-1
LTC6910-2/LTC6910-3
24
6910123fa
PART NUMBER DESCRIPTION COMMENTS
LT
®
1228 100MHz Gain Controlled Transconductance Amplifier Differential Input, Continuous Analog Gain Control
LT1251/LT1256 40MHz Video Fader and Gain Controlled Amplifier Two Input, One Output, Continuous Analog Gain Control
LTC1564 10kHz to 150kHz Digitally Controlled Filter and PGA Continuous Time, Low Noise 8th Order Filter and 4-Bit PGA
LTC6911 Dual Matched Programmable Gain Amplifier Dual 6910 in a 10 Lead MSOP
LTC6915 Zero Drift Instrumentation Amplifier with Programmable Gain Zero Drift, Digitally Programmable Gain Up to 4096 V/V
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
LINEAR TECHNOLOGY CORPORATION 2002
LT/TP 0404 1K REV A • PRINTED IN USA
RELATED PARTS
TYPICAL APPLICATIO
U
2
13
V
IN
V
OUT
= GAIN • V
IN
AGND
1µF OR LARGER
PIN 2 (AGND) SETS DC OUTPUT VOLTAGE AND HAS
BUILT-IN HALF-SUPPLY REFERENCE WITH INTERNAL
RESISTANCE OF 5k. AGND CAN ALSO BE DRIVEN BY A
SYSTEM ANALOG GROUND REFERENCE NEAR HALF SUPPLY
C1 VALUE SETS LOWER CORNER FREQUENCY.
THE TABLE SHOWS THIS FREQUENCY WITH
C1 = 1µF. THIS FREQUENCY SCALES INVERSELY
WITH C1
6910 TA02
5
4
LTC6910-X
6
8
V
+
2.7V TO 10.5V
0.1µF
G2 G1 G0
7
C1
0
–1
–2
–5
–10
–20
–50
–100
0
–1
–2
–4
–8
–16
–32
–64
LTC6910-1 LTC6910-2 LTC6910-3
0
–1
–2
–3
–4
–5
–6
–7
PASSBAND
GAIN
PASSBAND
GAIN
PASSBAND
GAIN
LOWER –3dB
FREQ (C1 = 1µF)
LOWER –3dB
FREQ (C1 = 1µF)
LOWER –3dB
FREQ (C1 = 1µF)
—
16Hz
32Hz
80Hz
160Hz
160Hz
160Hz
160Hz
—
16Hz
32Hz
64Hz
127Hz
127Hz
127Hz
127Hz
—
16Hz
32Hz
48Hz
64Hz
80Hz
95Hz
111Hz
DIGITAL INPUTS
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
G2 G1 G0
AC-Coupled Single Supply Amplifiers
Frequency Response, LTC6910-1
FREQUENCY (Hz)
100
–10
GAIN (dB)
0
10
20
30
40
50
1k 10k 100k 1M
6910 TA03
G2, G1, G0 = 111
G2, G1, G0 = 110
G2, G1, G0 = 101
G2, G1, G0 = 100
G2, G1, G0 = 011
G2, G1, G0 = 010
G2, G1, G0 = 001
V
S
= 10V, V
IN
= 5mV
RMS
C1 = 1µF
Frequency Response, LTC6910-2
FREQUENCY (Hz)
100
–10
GAIN (dB)
0
10
20
30
40
1k 10k 100k 1M
6910 TA04
V
S
= 10V, V
IN
= 5mV
RMS
C1 = 1µF
G2, G1, G0 = 111
G2, G1, G0 = 110
G2, G1, G0 = 101
G2, G1, G0 = 100
G2, G1, G0 = 011
G2, G1, G0 = 010
G2, G1, G0 = 001
Frequency Response, LTC6910-3
FREQUENCY (Hz)
10 100
–10
GAIN (dB)
–5
0
5
10
15
20
1k 10k 100k 10M1M
6910 TA05
G2, G1, G0 = 111
G2, G1, G0 = 110
G2, G1, G0 = 101
G2, G1, G0 = 100
G2, G1, G0 = 011
G2, G1, G0 = 010
G2, G1, G0 = 001
V
S
= 10V
V
IN
= 10mV
RMS
C1 = 1µF