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LT1679IS Datasheet

  • LT1679IS

  • Dual/Quad Low Noise, Rail-to-Rail, Precision Op Amps

  • 16頁(yè)

  • LINER

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LT1678/LT1679
Dual/Quad Low Noise,
Rail-to-Rail, Precision Op Amps
FEATURES
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DESCRIPTIO
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Rail-to-Rail Input and Output
100% Tested Low Voltage Noise:
3.9nV/鈭欻z Typ at 1kHz
5.5nV/鈭欻z Max at 1kHz
Single Supply Operation from 2.7V to 36V
Offset Voltage: 100碌V Max
Low Input Bias Current: 20nA Max
High A
VOL
: 3V/碌V Min, R
L
= 10k
High CMRR: 100dB Min
High PSRR: 106dB Min
Gain Bandwidth Product: 20MHz
Operating Temperature Range: 鈥?40擄C to 85擄C
Matching Specifications
No Phase Inversion
8-Lead SO and 14-Lead SO Packages
The LT
廬
1678/LT1679 are dual/quad rail-to-rail op amps
offering both low noise and precision: 3.9nV/鈭欻z wideband
noise, 1/f corner frequency of 4Hz and 90nV peak-to-peak
0.1Hz to 10Hz noise are combined with outstanding
precision: 100碌V maximum offset voltage, greater than
100dB common mode and power supply rejection and
20MHz gain bandwidth product. The LT1678/LT1679 bring
precision as well as low noise to single supply applications as
low as 3V. The input range exceeds the power supply by
100mV with no phase inversion while the output can swing
to within 170mV of either rail.
The LT1678/LT1679 are offered in the SO-8 and SO-14
packages. A full set of matching specifications are also
provided, facilitating their use in matching dependent appli-
cations such as a two op amp instrumentation amplifier
design. The LT1678/LT1679 are specified for supply volt-
ages of
鹵15V,
single 5V as well as single 3V. For a single
amplifier with similiar performance, see the LT1677 data
sheet.
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIO S
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Strain Gauge Amplifiers
Portable Microphones
Battery-Powered Rail-to-Rail Instrumentation
Low Noise Signal Processing
Microvolt Accuracy Threshold Detection
Infrared Detectors
TYPICAL APPLICATIO
3
Instrumentation Amplifier with Shield Driver
+
1/4
LT1679
1
1k
R
F
3.4k
5
30k
2
鈥?/div>
GUARD
INPUT
+
鈥?/div>
GUARD
+
8
1/4
LT1679
10
R
G
100鈩?/div>
6
R
G
100鈩?/div>
+
鈥?/div>
4
1/4
LT1679
11
鈥?5V
7
OUTPUT
30k
鈥?/div>
9
GAIN = 1000
13
VOLTAGE NOISE (50nV/DIV)
15V
鈥?/div>
1/4
LT1679
14
R
F
3.4k
16789 TA01
12
+
1k
U
0.1Hz to 10Hz Voltage Noise
V
S
=
鹵2.5V
0
2
4
6
TIME (sec)
8
10
16789 TA01b
U
U
sn16789 16789fs
1

LT1679IS 產(chǎn)品屬性

  • LT1678/79

  • 55

  • 集成電路 (IC)

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

  • -

  • 通用

  • 4

  • 滿擺幅

  • 6 V/µs

  • 20MHz

  • -

  • 2nA

  • 20µV

  • 2.5mA

  • 35mA

  • 2.7 V ~ 36 V，±1.35 V ~ 18 V

  • -40°C ~ 85°C

  • 表面貼裝

  • 14-SOIC（0.154"，3.90mm 寬）

  • 14-SO

  • 管件

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