Cirrus CS3013 Low-power / low-voltage precision amplifier Datasheet

10/15/09
CS3013
Low-power / Low-voltage Precision Amplifier
Features & Description

Description
Low Offset:
The CS3013 single amplifier is designed for precision
amplification of low-level signals. These amplifiers
achieve excellent offset stability, high open loop gain,
and low noise. The device also exhibits 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).
– 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
Pin Configurations

CS3013
– to within 20 mV of supply voltage


(Top View)
0.5 mA Supply Current
Slew rate:
1
– 0.25 V/μs
Applications




Thermocouple/Thermopile Amplifiers
Load Cell and Bridge Transducer Amplifiers
Precision Instrumentation
Battery-powered Systems
1
NC
1
-IN
2
-
7
V+
+IN
3
+
6
Output
V-
4
5
NC
8 NC
1
8-Lead SOIC
1. Must not be connected.
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)
OCT ‘09
DS736F3
10/15/09
CS3013
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 ................................................................................. 7
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
DS736F3
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CS3013
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
Input Voltage Range
(Note 2) •
-
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
-
(V- + 200)
(V- + 20)
mV
mV
-
0.25
-
V/µs
-
40
-
µs
Large Signal Voltage Gain
(Note 3)
Output Voltage Swing
(Note 4)
Slew Rate
RL = 2 kΩ to V+/2 • (V+ – 200)
RL = 100 kΩ to V+/2
(V+ – 20)
RL = 2 k, 100 pF
Overload Recovery Time
Supply Current
•
Chopping Frequency
Input Capacitance
Differential
Common Mode
-
0.5
0.75
mA
-
125
-
kHz
-
1.5
10
-
pF
pF
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
CS3013
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
V-
-
V+
V
Common Mode Rejection Ratio (dc)
Input Voltage Range
(Note 6) •
•
105
120
-
dB
Power Supply Rejection Ratio
•
100
120
-
dB
RL = 2 kΩ to V+/2 •
112
145
135
-
dB
dB
-
(V- + 200)
(V- + 20)
mV
mV
-
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
RL = 2 kΩ to V+/2 • (V+ – 200)
RL = 100 kΩ to V+/2
(V+ – 20)
RL = 2 k, 100 pF
Overload Recovery Time
Supply Current
•
Chopping 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
CS3013
Absolute Maximum Ratings
Supply Voltage
Parameter
Min
Typ
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
1
0.01
0.1
1
10
-300
Frequency (Hz)
0
1
2
3
4
5
6
7
8
9
10
Time (sec)
Figure 1. Noise vs Frequency (Measured)
Figure 2. 0.01 Hz to 10 Hz Noise
0.6
0.59
0.58
0.57
0.56
0.55
0.54
0.53
0.52
0.51
0.5
Figure 4. Gain & Phase vs. Frequency (5 V)
1.0
Supply Current (mA)
Supply Current (mA)
Figure 3. Gain & Phase vs. Frequency (2.7 V)
2.5
3
3.5
4
4.5
5
5.5
Supply Voltage (V)
Figure 5. Supply Current vs. Supply Voltage
DS736F3
6
0.75
5V
0.5
2.7V
0.25
-40
-15
10
35
60
85
110 125
Temperature (°C)
Figure 6. Supply Current vs. Temperature
5
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CS3013
Typical Performance Plots (Cont.)
V+
V+
-50
-50
-100
-100
-150
-150
-200
-200
+200
+200
+150
+150
+100
+100
+50
+50
-40°C
+25°C
+25°C
-40°C
+125°C
V–
V–
0
1
2
3
4
Output Current (mA)
Figure 7. Voltage Swing vs. Output Current (2.7 V)
6
+125°C
5
0
1
2
3
4
5
Output Current (mA)
Figure 8. Voltage Swing vs. Output Current (5 V)
DS736F3
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CS3013
3. PACKAGE DRAWINGS
8L SOIC (150 MIL BODY) PACKAGE DRAWING
E
H
1
b
c
D
SEATING
PLANE
∝
A
L
e
DIM
A
A1
B
C
D
E
e
H
L
∝
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
DS736F3
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CS3013
4. ORDERING INFORMATION
Part #
Temperature Range
Package Description
CS3013-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
CS3013-FSZ
260 °C
2
365 Days
* MSL (Moisture Sensitivity Level) as specified by IPC/JEDEC J-STD-020.
8
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CS3013
6. REVISION HISTORY
Revision
Date
A0
JAN 2007
Initial Release.
Changes
A1
FEB 2007
Corrected diagram on p1.
F1
AUG 2007
Updated to “Final” per QPL process.
F2
JUL 2009
Removed lead-containing SOIC & QFN packages from ordering information.
F3
OCT 2009
Change max. supply current to 0.75 mA.
DS736F3
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CS3013
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
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does not extend to other copying such as copying for general distribution, advertising or promotional purposes, or for creating any work for resale.
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DS736F3
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