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LTC6911HMS-2 Datasheet

  • LTC6911HMS-2

  • Dual Matched Amplifiers with Digitally Programmable Gain in ...

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LTC6911-1/LTC6911-2
Dual Matched Amplifiers
with Digitally Programmable
Gain in MSOP
FEATURES
s
DESCRIPTIO
s
s
s
s
s
s
s
s
s
s
3-Bit Digital Gain Control:
(Inverting Gains of 0, 1, 2, 5, 10, 20, 50
and 100V/V) -1 Option
(Inverting Gains of 0, 1, 2, 4, 8, 16, 32
and 64V/V) -2 Option
Two Matched Programmable Gain Amplifiers
Channel-to-Channel Gain Matching of 0.1dB (Max)
Rail-to-Rail Input Range
Rail-to-Rail Output Swing
Single or Dual Supply: 2.7V to 10.5V Total
11MHz Gain Bandwidth Product
Input Noise: 10nV/鈭欻z
Total System Dynamic Range to 120dB
Input Offset Voltage: 2mV, Gain of 10
Low Profile 10-Lead MSOP Package
The LTC
廬
6911 is a family of low noise digitally program-
mable gain amplifiers (PGAs) that are easy to use and
occupy very little PC board space. The matched gain of
both channels is adjustable using a 3-bit parallel interface
to select voltage gains of 0, 1, 2, 5, 10, 20, 50 and 100V/
V (LTC6911-1) and 0, 1, 2, 4, 8, 16, 32 and 64V/V
(LTC6911-2). All gains are inverting.
The LTC6911 family consists of two matched inverting
amplifiers with rail-to-rail outputs. When operated with
unity gain, they will also process rail-to-rail input signals.
A half-supply reference generated internally at the AGND
pin supports single power supply applications. Operating
from single or split supplies from 2.7V to 10.5V, the
LTC6911 family is offered in a 10-lead MSOP package.
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIO S
s
s
s
s
Data Acquisition Systems
Dynamic Gain Changing
Automatic Ranging Circuits
Automatic Gain Control
TYPICAL APPLICATIO
V
+
2.7V TO 10.5V
7
0.1碌F
9
DIGITAL
INPUT
GAIN IN V/V
G2 G1 G0 LTC6911-1 LTC6911-2
0 0 0
0
0
0 0 1
鈥?
鈥?
0 1 0
鈥?
鈥?
0 1 1
鈥?
鈥?
1 0 0
鈥?0
鈥?
1 0 1
鈥?0
鈥?6
1 1 0
鈥?0
鈥?2
1 1 1
鈥?00
鈥?4
V
INA
AGND
鈮?碌F
1
10
V
OUTA
=
GAIN 鈥?V
INA
GAIN (dB)
2
LTC6911-X
V
INB
3
8
V
OUTB
=
GAIN 鈥?V
INB
691112 TA01
鈥?0
100
4
G0
5
G1
6
G2
U
Frequency Response (LTC6911-1)
50
40
V
S
= 10V, V
IN
= 5mV
RMS
GAIN OF 鈥?00 (DIGITAL INPUT 111)
30 GAIN OF 鈥?0 (DIGITAL INPUT 110)
GAIN OF 鈥?0 (DIGITAL INPUT 101)
20
GAIN OF 鈥?0 (DIGITAL INPUT 100)
10 GAIN OF 鈥? (DIGITAL INPUT 011)
GAIN OF 鈥? (DIGITAL INPUT 010)
0
GAIN OF 鈥? (DIGITAL INPUT 001)
1k
10k
100k
FREQUENCY (Hz)
1M
10M
691112 TA02
U
U
sn691112 691112fs
1

LTC6911HMS-2 產(chǎn)品屬性

  • LTC6911-1/2

  • 50

  • 集成電路 (IC)

  • Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

  • -

  • 可編程增益

  • 2

  • 滿擺幅

  • 16 V/µs

  • 11MHz

  • -

  • -

  • 2000µV

  • 3.1mA

  • 35mA

  • 2.7 V ~ 10.5 V，±2.7 V ~ 5.25 V

  • -40°C ~ 125°C

  • 表面貼裝

  • 10-TFSOP，10-MSOP（0.118"，3.00mm 寬）

  • 10-MSOP

  • 帶卷 (TR)

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