Cirrus-logic CS3014 Manuale Utente

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Copyright Cirrus Logic, Inc. 2009
(All Rights Reserved)
Cirrus Logic, Inc.
http://www.cirrus.com
7/29/09
CS3014
Low-power / Low-voltage Precision Amplifier
Features & Description
Low Offset:
–10 μV Typ.
Low Drift:
–0.05 μV/°C Max.
Low Noise:
22 nV/Hz
Open-loop Voltage Gain:
135 dB Typ.
Rail-to-Rail Inputs
Rail-to-Rail Output Swing
to within 20 mV of supply voltage
1.0 mA Supply Current
Slew rate:
–0.25 V/μs
Applications
Thermocouple/Thermopile Amplifiers
Load Cell and Bridge Transducer Amplifiers
Precision Instrumentation
Battery-powered Systems
Description
The CS3004 dual amplifier is designed for precision am-
plification of low-level signals. These amplifiers achieve
excellent offset stability, high open loop gain, and low
noise. The devices also exhibit excellent CMRR and
PSRR. The common mode input range includes the sup-
ply rails. The amplifiers operate with any supply voltage
from 2.7 V to 5 V (±1.35 V to ±2.50 V).
Pin Configurations
CS3014
8-Lead SOIC
(Top View)
Out A
-In A
+In A
V-
V+
Out B
-In B
+In B
A
B
-
-
+
+
1
2
3
4
8
7
6
5
Noise vs. Frequency (Measured)
0.01 Hz to 10 Hz Noise Performance
1
10
100
1000
0.01 0.1 1 10
Frequency (Hz)
-300
-200
-100
0
100
200
300
012345678910
Time (sec)
JUL ‘09
DS711F2
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Sommario

Pagina 1 - –10 μV Typ

Copyright  Cirrus Logic, Inc. 2009(All Rights Reserved)Cirrus Logic, Inc.http://www.cirrus.com7/29/09CS3014Low-power / Low-voltage Precision Amplifie

Pagina 2 - LIST OF FIGURES

CS301410 DS711F27/29/09Contacting Cirrus Logic SupportFor all product questions and inquiries contact a Cirrus Logic Sales Representative. To find one

Pagina 3 - (Note 2) • -±0.01±0.05µV/ºC

CS30142 DS711F27/29/09TABLE OF CONTENTS1. CHARACTERISTICS AND SPECIFICATIONS ... 31.1 5 V Electrical Char

Pagina 4 - (Note 6) • -±0.01±0.05µV/ºC

CS3014DS711F2 37/29/091. CHARACTERISTICS AND SPECIFICATIONS1.1 5 V Electrical CharacteristicsV+ = +5 V, ±5%; V- = 0V; VCM = 2.5 V; Unless otherwise no

Pagina 5 - 2. TYPICAL PERFORMANCE PLOTS

CS30144 DS711F27/29/091.2 3 V Electrical CharacteristicsV+ = +3 V, ±10%; V- = 0V; VCM = 1.5 V; Unless otherwise noted, TA = 25º C (See Note 5). Notes

Pagina 6 - 6 DS711F2

CS3014DS711F2 57/29/091.3 Absolute Maximum Ratings2. TYPICAL PERFORMANCE PLOTSParameter Min T yp Max UnitSupply Voltage [(V+) – (V-)] 2.7 - 5.5 VInput

Pagina 7 - 3. PACKAGE DRAWINGS

CS30146 DS711F27/29/09Typical Performance Plots (Cont.)-200-150-100-50V+V–+50+100+150+20001234 5Output Current (mA)Output Vol tage (mV)-40°C+25°C+125°

Pagina 8 - 4. ORDERING INFORMATION

CS3014DS711F2 77/29/093. PACKAGE DRAWINGSINCHES MILLIMETERSDIM MIN MAX MIN MAXA 0.053 0.069 1.35 1.75A1 0.004 0.010 0.10 0.25B 0.013 0.020 0.33 0.51C

Pagina 9 - 6. REVISION HISTORY

CS30148 DS711F27/29/094. ORDERING INFORMATION5. ENVIRONMENTAL, MANUFACTURING, & HANDLING INFORMATION* MSL (Moisture Sensitivity Level) as specifie

Pagina 10 - 10 DS711F2

CS3014DS711F2 97/29/096. REVISION HISTORY Revision Date ChangesA1 FEB 2007 First public release.F1 AUG 2007 Updated to “Final” per QPL process.F2 JUL

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