參數(shù)資料
型號： LTC6911HMS-2
廠商： LINEAR TECHNOLOGY CORP
元件分類： 模擬信號調(diào)理
英文描述： Dual Matched Amplifiers with Digitally Programmable Gain in MSOP
中文描述： SPECIALTY ANALOG CIRCUIT, PDSO10
封裝： PLASTIC, MSOP-10
文件頁數(shù)： 9/20頁
文件大小： 224K
代理商： LTC6911HMS-2
LTC6911-1/LTC6911-2
9
sn691112 691112fs
The
G
denotes the specifications that apply over the full operating
temperature range, otherwise specifications are at T
A
= 25
°
C. V
S
= 5V, AGND = 2.5V, Gain = 1 (Digital Inputs 001), R
L
= 10k
to midsupply point, unless otherwise noted.
ELECTRICAL CHARACTERISTICS
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2:
The LTC6911C and LTC6911I are guaranteed functional over the
operating temperature range of –40
°
C to 85
°
C. The LTC6911H is
guaranteed functional over the operating temperature range of –40
°
C to
125
°
C.
Note 3:
The LTC6911C is guaranteed to meet specified performance from
0
°
C to 70
°
C. The LTC6911C is designed, characterized and expected to
meet specified performance from –40
°
C to 85
°
C but is not tested or QA
sampled at these temperatures. LTC6911I is guaranteed to meet specified
performance from –40
°
C to 85
°
C. The LTC6911H is guaranteed to meet
specified performance from –40
°
C to 125
°
C.
Note 4:
Output voltage swings are measured as differences between the
output and the respective supply rail.
Note 5:
Extended operation with output shorted may cause junction
temperature to exceed the 150
°
C limit and is not recommended.
Note 6:
Gain is measured with a DC large-signal test using an output
excursion between approximately 30% and 70% of the total supply
voltage.
Note 7:
Channel-to-channel isolation is measured by applying a 200kHz
input signal to one channel so that its output varies 1V
RMS
and measuring
the output voltage RMS of the other channel relative to AGND with its
input tied to AGND. Isolation is calculated:
Isolation
V
V
Isolation
V
V
A
OUTB
OUTA
B
OUTA
OUTB
=
=
20
20
10
10
log
,
log
Note 8:
Offset voltage referred to the INA or INB input is (1 + 1/G) times
the offset voltage of the internal op amp, where G is the nominal gain
magnitude. See Applications Information.
Note 9:
Input resistance can vary by approximately
±
30% part-to-part at a
given gain setting (input resistance match remains as specified).
C/I GRADES
MIN
TYP
H GRADE
TYP
PARAMETER
LTC6911-2 Only
DC Input Resistance Match
R
INA
– R
INB
CONDITIONS
MAX
MIN
MAX
UNITS
Gain = 1
Gain = 2
Gain = 4
Gain > 4
DC V
INA
or V
INB
= 0V
Gain = 0
Gain = 1
Gain = 2
Gain = 4
Gain = 8
Gain = 16
Gain = 32
Gain = 64
f = 1kHz to 200kHz
Gain = 0 (Output Noise Only)
Gain = 1
Gain = 2
Gain = 4
Gain = 8
Gain = 16
Gain = 32
Gain = 64
f = 50kHz
Gain = 1
Gain = 2
Gain = 4
Gain = 8
Gain = 16
Gain = 32
Gain = 64
Gain = 8, f
IN
= 10kHz, V
OUT
= 1V
RMS
G
G
G
G
10
5
2
1
10
5
2
1
DC Small-Signal Output Resistance
at OUTA or OUTB Pins
0.4
0.7
1.0
1.9
3.4
6.4
15
30
0.4
0.7
1.0
1.9
3.4
6.4
15
30
Wideband Noise (Referred to Input)
7.4
12.4
8.5
6.5
5.5
5.2
4.9
4.3
7.4
12.4
8.5
6.5
5.5
5.2
4.9
4.3
μ
V
RMS
μ
V
RMS
μ
V
RMS
μ
V
RMS
μ
V
RMS
μ
V
RMS
μ
V
RMS
μ
V
RMS
Voltage Noise Density
(Referred to Input)
28.0
19.0
14.8
12.7
11.8
11.5
10.9
–90
0.003
–82
0.008
11
28.0
19.0
14.8
12.7
11.8
11.5
10.9
–90
0.003
–82
0.008
11
nV/
√
Hz
nV/
√
Hz
nV/
√
Hz
nV/
√
Hz
nV/
√
Hz
nV/
√
Hz
nV/
√
Hz
Total Harmonic Distortion
dB
%
dB
%
Gain = 8, f
IN
= 100kHz, V
OUT
= 1V
RMS
Gain-Bandwidth Product
Gain = 64, f
IN
= 200kHz
G
6
17
6
17
MHz
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