LTC6910-3I Ver la hoja de datos (PDF) - Linear Technology
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LTC6910-3I Datasheet PDF : 24 Pages
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LTC6910-1
LTC6910-2/LTC6910-3
ELECTRICAL CHARACTERISTICS The q denotes the specifications that apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VS = 5V, AGND = 2.5V, Gain = 1 (Digital Inputs 001), RL = 10k
to midsupply point, unless otherwise noted.
PARAMETER
CONDITIONS
LTC6910-3C/LTC6910-3I LTC6910-3H
MIN TYP MAX MIN TYP MAX UNIT
Specifications for LTC6910-3 Only
DC Small-Signal Output Resistance
Gain = 0
Gain = 1
Gain = 2
Gain = 3
Gain = 4
Gain = 5
Gain = 6
Gain = 7
0.4
0.4
Ω
0.7
0.7
Ω
1
1
Ω
1.3
1.3
Ω
1.6
1.6
Ω
1.9
1.9
Ω
2.2
2.2
Ω
2.5
2.5
Ω
Gain-Bandwidth Product
Wideband Noise (Referred to Input)
Voltage Noise Density (Referred to Input)
Gain = 7, fIN = 200kHz
f = 1kHz to 200kHz
Gain = 0 Output Noise
Gain = 1
Gain = 2
Gain = 3
Gain = 4
Gain = 5
Gain = 6
Gain = 7
f = 50kHz
Gain = 1
Gain = 2
Gain = 3
Gain = 4
Gain = 5
Gain = 6
Gain = 7
q
11
3.8
10.7
7.3
6.1
5.3
5.2
4.9
4.7
24
16
14
12
11.6
11.2
10.5
11
MHz
3.8
µVRMS
10.7
µVRMS
7.3
µVRMS
6.1
µVRMS
5.3
µVRMS
5.2
µVRMS
4.9
µVRMS
4.7
µVRMS
24
nV/√Hz
16
nV/√Hz
14
nV/√Hz
12
nV/√Hz
11.6
nV/√Hz
11.2
nV/√Hz
10.5
nV/√Hz
Total Harmonic Distortion
Gain = 4, fIN = 10kHz, VOUT = 1VRMS
– 90
0.003
– 90
dB
0.003
%
Gain = 4, fIN = 100kHz, VOUT = 1VRMS
– 80
– 80
dB
0.01
0.01
%
AGND (Common Mode) Input Voltage Range VS = 2.7V
(Note 10)
VS = 5V
VS = ±5V
q 0.85
1.55 0.85
1.55
V
q 0.7
3.6 0.7
3.6
V
q – 4.3
3.4 – 4.3
3.4
V
Note 1: Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2: The LTC6910-XC and LTC6910-XI are guaranteed functional over
the operating temperature range of – 40°C to 85°C. The LTC6910-XH are
guaranteed functional over the operating temperature range of –40°C to
125°C.
Note 3: The LTC6910-XC are guaranteed to meet specified performance
from 0°C to 70°C. The LTC6910-XC are designed, characterized and
expected to meet specified performance from – 40°C to 85°C but are not
tested or QA sampled at these temperatures. LTC6910-XI are guaranteed
to meet specified performance from – 40°C to 85°C. The LTC6910-XH are
guaranteed to meet specified performance from – 40°C to 125°C.
Note 4: Operating all three logic inputs at 0.5V causes the supply current
to increase typically 0.1mA from this specification.
Note 5: Output voltage swings are measured as differences between the
output and the respective supply rail.
Note 6: Extended operation with output shorted may cause junction
temperature to exceed the 150°C limit and is not recommended.
Note 7: Gain is measured with a DC large-signal test using an output
excursion between approximately 30% and 70% of supply voltage.
Note 8: Offset voltage referred to “IN” pin is (1 + 1/G) times offset voltage
of the internal op amp, where G is nominal gain magnitude. See Applica-
tions Information.
Note 9: Input resistance can vary by approximately ±30% part-to-part at a
given gain setting.
Note 10: At limits of AGND input range, open-loop gain of internal op amp
may be greater than, or as much as 15dB below, its value at nominal
AGND value.
10
6910123fa
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