ltc6910-2 Linear Technology Corporation, ltc6910-2 Datasheet - Page 24
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ltc6910-2
Manufacturer Part Number
ltc6910-2
Description
Digitally Controlled Programmable Gain Amplifiers In Sot-23
Manufacturer
Linear Technology Corporation
Datasheet
1.LTC6910-2.pdf
(24 pages)
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RELATED PARTS
TYPICAL APPLICATIO
LTC6910-1
LTC6910-2/LTC6910-3
PART NUMBER
LT
LT1251/LT1256
LTC1564
LTC6911
LTC6915
24
C1 VALUE SETS LOWER CORNER FREQUENCY.
THE TABLE SHOWS THIS FREQUENCY WITH
C1 = 1 F. THIS FREQUENCY SCALES INVERSELY
WITH C1
DIGITAL INPUTS
G2
0
0
0
0
1
1
1
1
®
–10
1228
50
40
30
20
10
0
100
G1
0
0
1
1
0
0
1
1
Frequency Response, LTC6910-1
V
C1 = 1 F
S
= 10V, V
G0
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 FAX: (408) 434-0507
0
1
0
1
0
1
0
1
1k
PASSBAND
G2, G1, G0 = 110
G2, G1, G0 = 101
G2, G1, G0 = 100
G2, G1, G0 = 011
G2, G1, G0 = 010
G2, G1, G0 = 001
IN
G2, G1, G0 = 111
GAIN
–100
FREQUENCY (Hz)
–10
–20
–50
= 5mV
–1
–2
–5
DESCRIPTION
100MHz Gain Controlled Transconductance Amplifier
40MHz Video Fader and Gain Controlled Amplifier
10kHz to 150kHz Digitally Controlled Filter and PGA
Dual Matched Programmable Gain Amplifier
Zero Drift Instrumentation Amplifier with Programmable Gain Zero Drift, Digitally Programmable Gain Up to 4096 V/V
0
LTC6910-1
RMS
10k
FREQ (C1 = 1 F)
LOWER –3dB
160Hz
160Hz
160Hz
160Hz
16Hz
32Hz
80Hz
—
100k
6910 TA03
PASSBAND
U
1M
GAIN
–16
–32
–64
–1
–2
–4
–8
0
LTC6910-2
www.linear.com
FREQ (C1 = 1 F)
LOWER –3dB
AC-Coupled Single Supply Amplifiers
–10
40
30
20
10
0
127Hz
127Hz
127Hz
127Hz
100
16Hz
32Hz
64Hz
—
Frequency Response, LTC6910-2
V
C1 = 1 F
S
= 10V, V
1k
PASSBAND
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
IN
FREQUENCY (Hz)
GAIN
= 5mV
–1
–2
–3
–4
–5
–6
–7
0
LTC6910-3
RMS
10k
FREQ (C1 = 1 F)
LOWER –3dB
COMMENTS
Differential Input, Continuous Analog Gain Control
Two Input, One Output, Continuous Analog Gain Control
Dual 6910 in a 10 Lead MSOP
Continuous Time, Low Noise 8th Order Filter and 4-Bit PGA
111Hz
16Hz
32Hz
48Hz
64Hz
80Hz
95Hz
—
100k
6910 TA04
1M
V
IN
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
3
–10
20
15
10
–5
2.7V TO 10.5V
5
0
G2 G1 G0
LTC6910-X
10
7
Frequency Response, LTC6910-3
V
V
C1 = 1 F
V
S
IN
+
= 10V
8
6
= 10mV
LINEAR TECHNOLOGY CORPORATION 2002
100
0.1 F
G2, G1, G0 = 111
LT/TP 0404 1K REV A • PRINTED IN USA
4
5
RMS
2
1k
FREQUENCY (Hz)
1
6910 TA02
G2, G1, G0 = 101
G2, G1, G0 = 100
G2, G1, G0 = 011
G2, G1, G0 = 010
G2, G1, G0 = 001
1 F OR LARGER
AGND
10k
V
OUT
100k
G2, G1, G0 = 110
= GAIN • V
1M
6910123fa
6910 TA05
IN
10M