Datasheet

LTC6910-1
LTC6910-2/LTC6910-3
8
6910123fa
The ● 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
LTC6910-2C/LTC6910-2I LTC6910-2H
PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNIT
Specifications for LTC6910-2 Only
DC Small-Signal Output Resistance Gain = 0 0.4 0.4 Ω
Gain = 1 0.7 0.7 Ω
Gain = 2 1 1 Ω
Gain = 4 1.6 1.6 Ω
Gain = 8 2.8 2.8 Ω
Gain = 16 5 5 Ω
Gain = 32 10 10 Ω
Gain = 64 20 20 Ω
Gain-Bandwidth Product Gain = 64, f
IN
= 200kHz 9 13 16 9 13 16 MHz
● 7 13 19 7 13 19 MHz
Wideband Noise (Referred to Input) f = 1kHz to 200kHz
Gain = 0 Output Noise 3.8 3.8 µV
RMS
Gain = 1 10.7 10.7 µV
RMS
Gain = 2 7.3 7.3 µV
RMS
Gain = 4 5.3 5.3 µV
RMS
Gain = 8 4.6 4.6 µV
RMS
Gain = 16 4.2 4.2 µV
RMS
Gain = 32 4 4 µV
RMS
Gain = 64 3.6 3.6 µV
RMS
Voltage Noise Density (Referred to Input) f = 50kHz
Gain = 1 24 24 nV/√Hz
Gain = 2 16 16 nV/√Hz
Gain = 4 12 12 nV/√Hz
Gain = 8 10.3 10.3 nV/√Hz
Gain = 16 9.4 9.4 nV/√Hz
Gain = 32 9 9 nV/√Hz
Gain = 64 8.1 8.1 nV/√Hz
Total Harmonic Distortion Gain = 8, f
IN
= 10kHz, V
OUT
= 1V
RMS
–90 –90 dB
0.003 0.003 %
Gain = 8, f
IN
= 100kHz, V
OUT
= 1V
RMS
–77 –77 dB
0.014 0.014 %
AGND (Common Mode) Input Voltage Range V
S
= 2.7V ● 0.85 1.55 0.85 1.55 V
(Note 10) V
S
= 5V ● 0.7 3.6 0.7 3.6 V
V
S
= ±5V ● –4.3 3.4 –4.3 3.4 V