CS3004
Precision Low-voltage Amplifier
Features & Description
Description
Low Offset:
The CS3004 dual amplifier is designed for precision amplification of low-level signals. These amplifiers achieve
excellent offset stability, hi gh open loop gain, and low
noise. T he d evices also exhibit e xcellent CMRR an d
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 Max.
Low Drift:
– 0.05 μV/°C Max.
Low Noise:
– 17 nV/√Hz
Open-loop Voltage Gain:
– 150 dB Typ.
Rail-to-Rail Inputs
Rail-to-Rail Output Swing
Pin Configurations
CS3004
– to within 10 mV of supply voltage
(Top View)
2.1 mA Supply Current
Slew rate:
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
6 -In B
V- 4
5 +In B
8-Lead SOIC
1. Must not be connected.
1000
200
150
100
100
50
0
-50
10
-100
-150
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
-200
0.01 Hz to 10 Hz Noise Performance
Copyright Cirrus Logic, Inc. 2009
(All Rights Reserved)
JUL ‘09
DS719F2
CS3004
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
DS719F2
CS3004
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)
•
-
±2
±10
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
-
17
17
-
nV/ Hz
nV/ Hz
Input Bias Current
Input Offset Current
Input Noise Voltage Density
RS = 100 Ω, f0 = 1 Hz
RS = 100 Ω, f0 = 1 kHz
Input Noise Voltage
Input Noise Current Density
Input Noise Current
0.1 to 10 Hz
-
350
-
f0 = 1 Hz
-
100
-
0.1 to 10 Hz
nVp-p
fA/ Hz
-
1.9
•
V-
-
V+
Common Mode Rejection Ratio (dc)
•
110
120
-
dB
Power Supply Rejection Ratio
•
110
130
-
dB
•
120
150
150
-
dB
dB
(V+ – 100)
(V+ – 10)
-
(V- + 100 )
(V- + 10)
mV
mV
0.25
-
V/µs
25
-
µs
-
2.0
2.5
mA
-
150
-
kHz
-
1.5
10
-
pF
pF
Input Voltage Range
(Note 2)
Large Signal Voltage Gain
(Note 3)
Output Voltage Swing
Slew Rate
RL = 2 kΩ to V+/2
RL = 2 kΩ to V+/2
(Note 4) RL = 100 kΩ to V+/2
•
RL = 2 k, 100 pF
Overload Recovery Time
•
Supply Current
Oscillator Frequency
Input Capacitance
Differential
Common Mode
pAp-p
V
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.
DS719F2
3
CS3004
1.2
3 V Electrical Characteristics
V+ = +3 V, ±10%; V- = 0V; VCM = 2.5 V; Unless otherwise noted, TA = 25º C (See Note 5).
Min
Typ
Max
Unit
Input Offset Voltage
Parameter
(Note 6)
•
-
±2
±10
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
-
17
17
-
nV/ Hz
nV/ Hz
0.1 to 10 Hz
-
350
-
f0 = 1 Hz
-
100
-
nVp-p
0.1 to 10 Hz
-
1.9
Input Bias Current
Input Offset Current
Input Noise Voltage Density
Input Noise Voltage
Input Noise Current Density
Input Noise Current
fA/ Hz
pAp-p
•
V-
-
V+
Common Mode Rejection Ratio (dc)
•
110
120
-
dB
Power Supply Rejection Ratio
•
110
130
-
dB
•
120
160
150
-
dB
dB
(V+ – 100)
(V+ – 10)
-
(V- + 100 )
(V- + 10)
mV
mV
0.25
-
V/µs
-
25
-
µs
-
2.0
2.5
mA
-
150
-
kHz
-
1.5
10
-
pF
pF
Input Voltage Range
(Note 6)
Large Signal Voltage Gain
(Note 7)
Output Voltage Swing
Slew Rate
RL = 2 kΩ to V+/2
RL = 2 kΩ to V+/2
(Note 8) RL = 100 kΩ to V+/2
•
RL = 2 k, 100 pF
Overload Recovery Time
•
Supply Current
Oscillator Frequency
Input Capacitance
Differential
Common Mode
V
Notes: 5. Symbol “•” denotes specification applies over -40 to +125 ° C.
6. This parameter is guaranteed by design and/or 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
DS719F2
CS3004
1.3
Absolute Maximum Ratings
Parameter
Min T
yp
Max
Unit
2.7
-
5.5
V
(V-) – 0.3
-
(V+) + 0.3
V
-65
-
+150
ºC
[(V+) – (V-)]
Supply Voltage
Input Voltage
Storage Temperature Range
2. TYPICAL PERFORMANCE PLOTS
1000
200
150
100
100
50
0
-50
10
-100
-150
1
0.01
0.1
1
-200
10
0
Frequency (Hz)
1
1
10
100
1k
3
4
5
6
7
8
9
10
Time (sec)
Figure 1. Noise vs Frequency (Measured)
180
160
140
120
100
80
60
40
20
0
-20
0.001 0.01 0.1
2
10k 100k 1M
Frequency (Hz)
Figure 2. 0.01 Hz to 10 Hz Noise
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
270
225
180
135
90
45
0
0.1
1
10
100
1k
Frequency (Hz)
10k 100k 1M
-45
-90
-135
-180
10M
Figure 4. Gain & Phase vs. Frequency (5 V)
Figure 3. Gain & Phase vs. Frequency (2.7 V)
2.5
1.9
Supply Current (mA)
Supply Current (mA)
2.0
1.8
1.7
1.6
1.5
2.5
3
3.5
4
4.5
5
Supply voltage
Figure 5. Supply Current vs. Supply Voltage
DS719F2
5.5
2.0
5V
1.5
2.7V
1.0
0.5
-40
-15
10
35
60
85
110 125
Temperature (°C)
Figure 6. Supply Current vs. Temperature
5
CS3004
Typical Performance Plots (Cont.)
V+
V+
-50
-50
+125°C
-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
0
1
2
3
Output Current (mA)
4
Figure 7. Voltage Swing vs. Output Current (2.7 V)
6
-40°C
-150
+100
+50
V–
+125°C
-100
Output Voltage (mV)
Output Voltage (mV)
-100
5
V–
0
1
2
3
Output Current (mA)
4
5
Figure 8. Voltage Swing vs. Output Current (5 V)
DS719F2
CS3004
3. PACKAGE DRAWINGS
8L SOIC (150 MIL BODY) PACKAGE DRAWING
E
H
1
b
c
D
SEATING
PLANE
L
e
DIM
A 0.0
A1
B
C
D
E
e
H
L
∝
∝
A
A1
MIN
53
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
DS719F2
7
CS3004
4. ORDERING INFORMATION
Part #
Temperature Range
Package Description
CS3004-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
CS3004-FSZ
260 °C
2
365 Days
* MSL (Moisture Sensitivity Level) as specified by IPC/JEDEC J-STD-020.
8
DS719F2
CS3004
6. REVISION HISTORY
Revision
Date
PP4
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.
DS719F2
Changes
9
CS3004
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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10
DS719F2