7/29/09
CS3014
Low-power / Low-voltage Precision Amplifier
Features & Description
Description
The CS3004 dual amplifier is designed for precision amplification 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 supply rails. The amplifiers operate with any supply voltage
from 2.7 V to 5 V (±1.35 V to ±2.50 V).
Low Offset:
– 10 μV Typ.
Low Drift:
– 0.05 μV/°C Max.
Low Noise:
– 22 nV/√Hz
Open-loop Voltage Gain:
– 135 dB Typ.
Pin Configurations
Rail-to-Rail Inputs
Rail-to-Rail Output Swing
– to within 20 mV of supply voltage
CS3014
1.0 mA Supply Current
Slew rate:
(Top View)
Out A 1
– 0.25 V/μs
Applications
8 V+
-In A 2
Thermocouple/Thermopile Amplifiers
Load Cell and Bridge Transducer Amplifiers
Precision Instrumentation
Battery-powered Systems
7 Out B
A
- +
B
+ -
+In A 3
V- 4
6 -In B
5 +In B
8-Lead SOIC
300
1000
200
100
100
0
10
-100
-200
1
0.01
0.1
1
10
Frequency (Hz)
0
1
2
3
4
5
6
7
8
9
10
Time (sec)
Noise vs. Frequency (Measured)
Cirrus Logic, Inc.
http://www.cirrus.com
-300
0.01 Hz to 10 Hz Noise Performance
Copyright Cirrus Logic, Inc. 2009
(All Rights Reserved)
JUL ‘09
DS711F2
7/29/09
CS3014
TABLE OF CONTENTS
1. CHARACTERISTICS AND SPECIFICATIONS ............................................. 3
1.1 5 V Electrical Characteristics ................................................................... 3
1.2 3 V Electrical Characteristics ................................................................... 4
1.3 Absolute Maximum Ratings ..................................................................... 5
2. TYPICAL PERFORMANCE PLOTS ............... ............................................... 5
3. PACKAGE DRAWINGS ................................................................................. 6
4. ORDERING INFORMATION .......................................................................... 8
5. ENVIRONMENTAL, MANUFACTURING, & HANDLING INFORMATION ... 8
6. REVISION HISTORY ..................................................................................... 9
LIST OF FIGURES
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
2
Noise vs. Frequency (Measured) ................................................................................5
0.01 Hz to 10 Hz Noise ...............................................................................................5
Gain & Phase vs. Frequency (2.7 V) ...........................................................................5
Gain & Phase vs. Frequency (5 V) ..............................................................................5
Supply Current vs. Supply Voltage ..............................................................................5
Supply Current vs. Temperature .................................................................................5
Voltage Swing vs. Output Current (2.7 V) ...................................................................6
Voltage Swing vs. Output Current (5 V) ......................................................................6
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CS3014
1. CHARACTERISTICS AND SPECIFICATIONS
1.1
5 V Electrical Characteristics
V+ = +5 V, ±5%; V- = 0V; VCM = 2.5 V; Unless otherwise noted, TA = 25º C (See Note 1).
Parameter
Min
Typ
Max
Unit
Input Offset Voltage
(Note 2) •
-
±10
±20
µV
Average Input Offset Drift
(Note 2) •
-
±0.01
±0.05
µV/ºC
•
-
±170
-
±250
±1.5
pA
nA
•
-
±340
-
±500
±3.0
pA
nA
-
22
22
-
nV/ Hz
nV/ Hz
Input Bias Current
Input Offset Current
Input Noise Voltage Density
Input Noise Voltage
Input Noise Current Density
Input Noise Current
RS = 100 Ω, f0 = 1 Hz
RS = 100 Ω, f0 = 1 kHz
0.1 to 10 Hz
-
460
-
nVp-p
f0 = 1 Hz
-
100
-
fA/ Hz
0.1 to 10 Hz
(Note 2) •
Input Voltage Range
-
1.9
-
pAp-p
V-
-
V+
V
Common Mode Rejection Ratio (dc)
•
105
120
-
dB
Power Supply Rejection Ratio
•
100
120
-
dB
RL = 2 kΩ to V+/2 •
112
145
135
-
dB
dB
RL = 2 kΩ to V+/2 •
RL = 100 kΩ to V+/2
(V+ – 200)
(V+ – 20)
-
(V- + 200)
(V- + 20)
mV
mV
RL = 2 k, 100 pF
-
0.25
-
V/µs
-
40
-
µs
-
1.0
1.25
mA
-
125
-
kHz
-
1.5
10
-
pF
pF
Large Signal Voltage Gain
(Note 3)
Output Voltage Swing
(Note 4)
Slew Rate
Overload Recovery Time
•
Supply Current
Oscillator Frequency
Input Capacitance
Differential
Common Mode
Notes: 1. Symbol “•” denotes specification applies over -40 to +125 ° C.
2. This parameter is guaranteed by design and/or laboratory characterization.
3. Guaranteed within the output limits of (V+ – 0.2 V) to (V- + 0.2 V).
4. Specifies the worst case drive voltage relative to the supply rail under stated load conditions.
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1.2
CS3014
3 V Electrical Characteristics
V+ = +3 V, ±10%; V- = 0V; VCM = 1.5 V; Unless otherwise noted, TA = 25º C (See Note 5).
Min
Typ
Max
Unit
Input Offset Voltage
Parameter
(Note 6) •
-
±10
±20
µV
Average Input Offset Drift
(Note 6) •
-
±0.01
±0.05
µV/ºC
•
-
±110
-
±150
±1.0
pA
nA
•
-
±220
-
±300
±2.0
pA
nA
RS = 100 Ω, f0 = 1 Hz
RS = 100 Ω, f0 = 1 kHz
-
22
22
-
nV/ Hz
nV/ Hz
0.1 to 10 Hz
-
460
-
nVp-p
f0 = 1 Hz
-
100
-
fA/ Hz
0.1 to 10 Hz
-
1.9
-
pAp-p
Input Bias Current
Input Offset Current
Input Noise Voltage Density
Input Noise Voltage
Input Noise Current Density
Input Noise Current
(Note 6) •
Input Voltage Range
V-
-
V+
V
Common Mode Rejection Ratio (dc)
•
105
120
-
dB
Power Supply Rejection Ratio
•
100
120
-
dB
RL = 2 kΩ to V+/2 •
112
145
135
-
dB
dB
RL = 2 kΩ to V+/2 •
RL = 100 kΩ to V+/2
(V+ – 200)
(V+ – 20)
-
(V- + 200)
(V- + 20)
mV
mV
RL = 2 k, 100 pF
-
0.25
-
V/µs
-
40
-
µs
-
1.0
1.25
mA
-
125
-
kHz
-
1.5
10
-
pF
pF
Large Signal Voltage Gain
(Note 7)
Output Voltage Swing
(Note 8)
Slew Rate
Overload Recovery Time
•
Supply Current
Oscillator Frequency
Input Capacitance
Differential
Common Mode
Notes: 5. Symbol “•” denotes specification applies over -40 to +125 ° C.
6. This parameter is guaranteed by design and laboratory characterization.
7. Guaranteed within the output limits of (V+ – 0.2 V) to (V- + 0.2 V).
8. Specifies the worst case drive voltage relative to the supply rail under stated load conditions.
4
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1.3
CS3014
Absolute Maximum Ratings
Supply Voltage
Parameter
Min T
yp
Max
Unit
[(V+) – (V-)]
2.7
-
5.5
V
(V-) – (0.3)
-
(V+) + (0.3)
V
-65
-
+150
ºC
Input Voltage
Storage Temperature Range
2. TYPICAL PERFORMANCE PLOTS
300
1000
200
100
100
0
10
-100
-200
0.01
0.1
1
10
-300
Frequency (Hz)
0
1
1
10
100
1k
10k 100k 1M
Gain (dB)
Gain (dB)
270
225
180
135
90
45
0
-45
-90
-135
-180
10M
180
160
140
120
100
80
60
40
20
0
-20
0.001 0.01
6
7
8
9
10
0
0.1
1
10
100
1k
10k 100k 1M
-45
-90
-135
-180
10M
Frequency (Hz)
Figure 3. Gain & Phase vs. Frequency (2.7 V)
Figure 4. Gain & Phase vs. Frequency (5 V)
1.00
2.5
Supply Current (mA)
Supply Current (mA)
5
270
225
180
135
90
45
Frequency (Hz)
0.95
0.90
0.85
0.80
4
Figure 2. 0.01 Hz to 10 Hz Noise
Phase (Deg.)
0.1
3
Time (sec)
Figure 1. Noise vs. Frequency (Measured)
180
160
140
120
100
80
60
40
20
0
-20
0.001 0.01
2
Phase (Deg.)
1
2.5
3
3.5
4
4.5
5
Supply Voltage
Figure 5. Supply Current vs. Supply Voltage
DS711F2
5.5
2.0
1.5
5V
1.0
2.7V
0.5
-40
-15
10
35
60
85
110 125
Temperature (°C)
Figure 6. Supply Current vs. Temperature
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CS3014
Typical Performance Plots (Cont.)
V+
V+
-50
-40°C
-150
+25°C
-200
+200
-40°C
+150
+25°C
+125°C
+100
+25°C
-200
+200
-40°C
+150
+25°C
+125°C
+50
V–
0
1
2
3
4
Output Current (mA)
Figure 7. Voltage Swing vs. Output Current (2.7 V)
6
-40°C
-150
+100
+50
V–
+125°C
-100
Output Voltage (mV)
-100
Output Voltage (mV)
-50
+125°C
5
0
1
2
3
4
5
Output Current (mA)
Figure 8. Voltage Swing vs. Output Current (5 V)
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CS3014
3. PACKAGE DRAWINGS
8L SOIC (150 MIL BODY) PACKAGE DRAWING
E
H
1
b
c
D
SEATING
PLANE
L
e
DIM
A
A1
B
C
D
E
e
H
L
∝
∝
A
A1
MIN
0.053
0.004
0.013
0.007
0.189
0.150
0.040
0.228
0.016
0°
INCHES
MAX
0.069
0.010
0.020
0.010
0.197
0.157
0.060
0.244
0.050
8°
MILLIMETERS
MIN
MAX
1.35
1.75
0.10
0.25
0.33
0.51
0.19
0.25
4.80
5.00
3.80
4.00
1.02
1.52
5.80
6.20
0.40
1.27
0°
8°
JEDEC # : MS-012
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CS3014
4. ORDERING INFORMATION
Part #
Temperature Range
Package Description
CS3014-FSZ
-40 °C to +125 °C
8-lead SOIC, Lead Free
5. ENVIRONMENTAL, MANUFACTURING, & HANDLING INFORMATION
Model Number
Peak Reflow Temp
MSL Rating*
Max Floor Life
CS3014-FSZ
260 °C
2
365 Days
* MSL (Moisture Sensitivity Level) as specified by IPC/JEDEC J-STD-020.
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CS3014
6. REVISION HISTORY
Revision
Date
A1
FEB 2007
First public release.
F1
AUG 2007
Updated to “Final” per QPL process.
F2
JUL 2009
Removed lead-containing SOIC & QFN packages from ordering information.
DS711F2
Changes
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CS3014
Contacting Cirrus Logic Support
For all product questions and inquiries contact a Cirrus Logic Sales Representative.
To find one nearest you go to http://www.cirrus.com
IMPORTANT NOTICE
Cirrus Logic, Inc. and its subsidiaries ("Cirrus") believe that the information contained in this document is accurate and reliable. However, the information is subject
to change without notice and is provided "AS IS" without warranty of any kind (express or implied). Customers are advised to obtain the latest version of relevant
information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale
supplied at the time of order acknowledgment, including those pertaining to warranty, indemnification, and limitation of liability. No responsibility is assumed by Cirrus
for the use of this information, including use of this information as the basis for manufacture or sale of any items, or for infringement of patents or other rights of third
parties. This document is the property of Cirrus and by furnishing this information, Cirrus grants no license, express or implied under any patents, mask work rights,
copyrights, trademarks, trade secrets or other intellectual property rights. Cirrus owns the copyrights associated with the information contained herein and gives consent for copies to be made of the information only for use within your organization with respect to Cirrus integrated circuits or other products of Cirrus. This consent
does not extend to other copying such as copying for general distribution, advertising or promotional purposes, or for creating any work for resale.
CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE ("CRITICAL APPLICATIONS"). CIRRUS PRODUCTS ARE NOT DESIGNED, AUTHORIZED OR WARRANTED FOR USE
IN PRODUCTS SURGICALLY IMPLANTED INTO THE BODY, AUTOMOTIVE SAFETY OR SECURITY DEVICES, LIFE SUPPORT PRODUCTS OR OTHER CRITICAL APPLICATIONS. INCLUSION OF CIRRUS PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE FULLY AT THE CUSTOMER'S RISK AND
CIRRUS DISCLAIMS AND MAKES NO WARRANTY, EXPRESS, STATUTORY OR IMPLIED, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS FOR PARTICULAR PURPOSE, WITH REGARD TO ANY CIRRUS PRODUCT THAT IS USED IN SUCH A MANNER. IF THE CUSTOMER OR
CUSTOMER'S CUSTOMER USES OR PERMITS THE USE OF CIRRUS PRODUCTS IN CRITICAL APPLICATIONS, CUSTOMER AGREES, BY SUCH USE, TO
FULLY INDEMNIFY CIRRUS, ITS OFFICERS, DIRECTORS, EMPLOYEES, DISTRIBUTORS AND OTHER AGENTS FROM ANY AND ALL LIABILITY, INCLUDING ATTORNEYS' FEES AND COSTS, THAT MAY RESULT FROM OR ARISE IN CONNECTION WITH THESE USES.
Cirrus Logic, Cirrus, and the Cirrus Logic logo designs are trademarks of Cirrus Logic, Inc. All other brand and product names in this document may be trademarks
or service marks of their respective owners.
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DS711F2