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CS3301 데이터시트 PDF




Cirrus Logic에서 제조한 전자 부품 CS3301은 전자 산업 및 응용 분야에서
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부품번호 CS3301 기능
기능 Differential Amplifier
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CS3301 데이터시트, 핀배열, 회로
CS3301
Low-noise, Programmable Gain, Differential Amplifier
Features & Desription
Description
z Signal Bandwidth: DC to 2 kHz
z Selectable Gain: x1, x2, x4, x8, x16, x32, x64
z Differential Inputs, Differential Outputs
• Multiplexed inputs: INA, INB, 800termination
• Rough / fine charge outputs for CS5371/72
• Max signal amplitude: 5 Vpp differential
• Low input bias: 500 pA
z Outstanding Noise Performance
• 0.20 µVp-p between 0.1 Hz and 10 Hz
• 8.5 nV/ Hz from 0.1 Hz to 2 kHz
z Low Total Harmonic Distortion
• -118 dB THD typical (0.000126%)
• -112 dB THD maximum (0.000251%)
z Low Power Consumption
• Normal/LPWR/PWDN: 5.5 mA, 3.5 mA, 10 µA
z Single or Dual Power Supply Configurations
• VA+ = +5 V; VA- = 0 V; VD = +3.3 V to +5 V
• VA+ = +2.5 V;VA- = -2.5 V;VD = +3.3 V
The CS3301 is a low-noise differential input, differential
output amplifier with programmable gain, optimized for
amplifying signals from low-impedance sensors such as
geophones. The gain settings are binary weighted (x1,
x2, x4, x8, x16, x32, x64) and are selected using simple
pin settings. Two sets of external inputs, INA and INB,
simplify system design as inputs from a sensor and test
DAC. An internal 800 termination can also be selected
for noise tests.
Amplifier noise performance is outstanding with a noise
density of 8.5 nV/ Hz over the 0.1 Hz to 2 kHz band-
width. Distortion performance is also extremely good,
typically -118 dB THD. Flat noise down to 0.1 Hz and
low total harmonic distortion make this amplifier ideal for
low-frequency, low-amplitude, differential signals requir-
ing maximum dynamic range.
ORDERING INFORMATION
See page 15.
INA+
INB+
VA+
MUX0
MUX1
INA-
INB-
VA-
CLK
VD
+ 658000
OUTR+
- OUTF+
65800
GAIN0
GAIN1
GAIN2
65800
- OUTF-
OUTR-
+ 65800
LPWR PWDN DGND
http://www.cirrus.com
Copyright © Cirrus Logic, Inc. 2007
(All Rights Reserved)
DEC ‘07
DS595F3




CS3301 pdf, 반도체, 판매, 대치품
CS3301
1. CHARACTERISTICS AND SPECIFICATIONS
• Min/Max characteristics and specifications are guaranteed over the Specified Operating Conditions.
• Typical performance characteristics and specifications are derived from measurements taken at nom-
inal supply voltages and TA = 25°C.
• DGND = 0 V, all voltages with respect to 0 V.
SPECIFIED OPERATING CONDITIONS
Parameter
Unipolar Power Supplies
Positive Analog
Negative Analog
Positive Digital
Bipolar Power Supplies
Positive Analog
Negative Analog
Positive Digital
Thermal
Ambient Operating Temperature
Symbol
(Note 1)
(Note 2)
VA+
VA-
VD
(Note 1)
(Note 2)
VA+
VA-
VD
Industrial (-IS) TA
Min
4.75
-0.25
3.135
2.375
-2.625
3.135
-40
Nom
5.0
0
3.3
2.5
-2.5
3.3
-
Max
5.25
0.25
5.25
2.625
-2.375
3.465
85
Notes: 1. VA- must be the most negative voltage to avoid potential SCR latch-up conditions.
2. VD must conform to Digital Supply Differential under Absolute Maximum Ratings.
Unit
V
V
V
V
V
V
°C
ABSOLUTE MAXIMUM RATINGS
Parameter
DC Power Supplies
Positive Analog
Negative Analog
Digital
Analog Supply Differential [(VA+) - (VA-)]
Digital Supply Differential [(VD) - (VA-)]
Input Current, Any Pin Except Supplies
(Note 3)
Input Current, Power Supplies
(Note 3)
Output Current
(Note 3)
Power Dissipation
Analog Input Voltages
Digital Input Voltages
Ambient Operating Temperature (Power Applied)
Storage Temperature Range
Symbol
VA+
VA-
VD
VADIFF
VDDIFF
IIN
IIN
IOUT
PDN
VINA
VIND
TA
TSTG
Min
-0.3
-6.8
-0.3
-
-
-
-
-
-
(VA-)-0.5
-0.5
-40
-65
Max
6.8
0.3
6.8
6.8
6.8
+10
+50
+25
500
(VA+)+0.5
(VD)+0.5
85
150
Parameter
V
V
V
V
V
mA
mA
mA
mW
V
V
ºC
ºC
WARNING: Operation at or beyond these limits may result in permanent damage to the device.
Normal operation is not guaranteed at these extremes.
Notes: 3. Transient currents up to 100 mA will not cause SCR latch-up.
4 DS595F3

4페이지










CS3301 전자부품, 판매, 대치품
CS3301
ANALOG CHARACTERISTICS (CONT.)
Parameter
Analog Input Characteristics
Input Signal Frequencies
Input Voltage Range (Signal + Vcm)
(Note 14)
Full Scale Input, Differential
Input Impedance, Differential
Input Impedance, Common Mode
Input Bias Current
Crosstalk, Multiplexed Inputs
Common to Differential Mode Rejection
Analog Output Characteristics
Full Scale Output, Differential
Output Voltage Range (Signal + Vcm)
Output Impedance
Output Impedance Drift
Output Current
Load Capacitance
Symbol
x1
x2 - x64
x1
x2
x4
x8
x16
x32
x64
(Note 4)
(Note 4, 15)
BW
VIN
VINFS
ZINDIFF
ZINCM
IIN
XT
CDMR
(Note 16)
(Note 16)
VOUT
VRNG
ZOUT
ZTC
IOUT
CL
CS3301
Min Typ Max
DC
(VA-)+0.7
(VA-)+0.7
-
-
-
-
-
-
-
-
-
-
-
90
-
-
-
-
-
-
-
-
-
-
1, 50
1
500
-130
100
2000
(VA+)-1.25
(VA+)-1.75
5
2.5
1.25
625
312.5
156.25
78.125
-
-
1200
-
-
-
(VA-)+0.5
-
-
-
-
-
-
680
0.24
-
-
5
(VA+)-0.5
-
-
3.33
100
Unit
Hz
V
Vp-p
Vp-p
Vp-p
mVp-p
mVp-p
mVp-p
mVp-p
G, pF
M
pA
dB
dB
Vp-p
V
Ω/°C
mA
nF
Notes: 14. No signals operating from external power supplies should be applied to pins of the device prior to its
own supplies being established. Connecting any terminal to voltages greater than VA+ or less than VA-
may cause destructive latch-up.
15. Ratio of common mode input amplitude vs. differential mode output amplitude for a perfectly matched
common mode input signal. Characterized with a 50 Hz, 500 mVpeak common mode sine wave applied
to the analog inputs.
16. Output impedance characteristics are primarily determined by the integrated anti-alias resistors. Values
are approximate and can vary up to +/- 10% depending on process parameters.
DS595F3
7

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