ltc6910-2 Linear Technology Corporation, ltc6910-2 Datasheet - Page 10

• Manufacturer Part Number: ltc6910-2
• Description: Digitally Controlled Programmable Gain Amplifiers In Sot-23
• Manufacturer: Linear Technology Corporation

ELECTRICAL CHARACTERISTICS
LTC6910-1
LTC6910-2/LTC6910-3
temperature range, otherwise specifications are at T
to midsupply point, unless otherwise noted.
PARAMETER
Specifications for LTC6910-3 Only
DC Small-Signal Output Resistance
Gain-Bandwidth Product
Wideband Noise (Referred to Input)
Voltage Noise Density (Referred to Input)
Total Harmonic Distortion
AGND (Common Mode) Input Voltage Range
(Note 10)
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.
10
CONDITIONS
Gain = 0
Gain = 1
Gain = 2
Gain = 3
Gain = 4
Gain = 5
Gain = 6
Gain = 7
Gain = 7, f
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
Gain = 4, f
Gain = 4, f
V
V
V
S
S
S
= 2.7V
= 5V
= 5V
IN
IN
IN
A
= 200kHz
= 10kHz, V
= 100kHz, V
= 25 C. V
The
OUT
OUT
S
denotes the specifications that apply over the full operating
= 5V, AGND = 2.5V, Gain = 1 (Digital Inputs 001), R
= 1V
= 1V
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.
RMS
RMS
LTC6910-3C/LTC6910-3I
– 4.3
MIN
0.85
0.7
0.003
10.7
11.6
11.2
10.5
0.01
TYP MAX
– 90
– 80
0.4
0.7
1.3
1.6
1.9
2.2
2.5
3.8
7.3
6.1
5.3
5.2
4.9
4.7
11
24
16
14
12
1
1.55
3.6
3.4
– 4.3
MIN
0.85
0.7
LTC6910-3H
0.003
10.7
11.6
11.2
10.5
0.01
TYP MAX
– 90
– 80
0.4
0.7
1.3
1.6
1.9
2.2
2.5
3.8
7.3
6.1
5.3
5.2
4.9
4.7
11
24
16
14
12
1
L
= 10k
1.55
3.6
3.4
6910123fa
nV/ Hz
nV/ Hz
nV/ Hz
nV/ Hz
nV/ Hz
nV/ Hz
nV/ Hz
V
V
V
V
V
V
V
V
UNIT
MHz
RMS
RMS
RMS
RMS
RMS
RMS
RMS
RMS
dB
dB
%
%
V
V
V