SA58603D [NXP]
High precision operational amplifier, comparator, and voltage reference; 高精密运算放大器，比较器和基准电压源
| 型号： | SA58603D |
| 厂家： | 
NXP |
| 描述： | High precision operational amplifier, comparator, and voltage reference |
| 文件： | 总15页 (文件大小：133K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
INTEGRATED CIRCUITS
SA58603
High precision operational amplifier,
comparator, and voltage reference
Product data
2002 Nov 13
Supersedes data of 2001 Oct 03
Philips
Semiconductors
Philips Semiconductors
Product data
High precision operational amplifier,
comparator, and voltage reference
SA58603
GENERAL DESCRIPTION
The SA58603 is comprised of a low voltage, high precision dual
operational amplifier, a comparator, and a reference voltage source.
The input offset voltage is typically 100 µV with a very low
temperature drift of ±1 µV/°C. The SA58603 supply current is
typically 100 µA per amplifier and it operates from 1.8 V to 6 V
single supply.
Having single power supply capability, low current consumption, low
offset voltage, low input offset current and low input bias current, the
SA58603 is ideal for battery-powered applications and amplification
of very small signals. It is excellent for precision amplifiers in gas
burners and gas pilot water heaters which use thermal couple heat
sensors.
FEATURES
Reference voltage section
• Reference voltage: 1.27 V ±50 mV
General
• Reference voltage temperature characteristics:
±100 ppm/°C (typical)
• Functionality to 1.8 V typical
• Low supply current: 100 µA per amplifier (typical)
• Output current: 0.3 mA (minimum)
Amplifier section
• Very low input offset voltage: 100 µV (typical)
APPLICATIONS
• Gas burners
• Gas water heaters
• Tankless gas water heaters
• Very low input offset drift: ±1 µV/°C (typical)
• Low input offset current: 1 nA (typical)
• Input bias current: 50 nA (typical)
• Open loop gain: 100 dB (typical)
• Common mode input includes ground
Comparator section
• Input offset voltage: ±1.0 mV (typical)
• Low input offset voltage voltage drift (–40 to +85 °C):
±10 µV (typical)
• Input bias current: 25 nA (typical)
• Output sink current: 5 mA (minimum)
SIMPLIFIED DEVICE DIAGRAM
V
CC
8
AMPLIFIER
3
AOUT
2
1
AIN–
AIN+
COMPARATOR
COMPOUT
7
R
22 kΩ
1.27 V
4
6
5
GND
COMPIN–
V
S
SL01536
Figure 1. Simplified device diagram.
2
2002 Nov 13
Philips Semiconductors
Product data
High precision operational amplifier,
comparator, and voltage reference
SA58603
ORDERING INFORMATION
PACKAGE
TEMPERATURE
RANGE
TYPE NUMBER
NAME
DESCRIPTION
SA58603D
SO8
plastic small outline package; 8 leads; body width 3.9 mm
–40 to +85 °C
PIN CONFIGURATION
TOP VIEW
AIN+
AIN–
1
2
3
4
8
7
6
5
V
CC
COMPOUT
SO8
AOUT
GND
V
S
COMIN–
SL01535
Figure 2. Pin configuration.
PIN DESCRIPTION
PIN
1
SYMBOL
AIN+
DESCRIPTION
Non-inverting input of Op Amp. This is a PNP amplifier with the reference voltage as its supply voltage.
Inverting input of Op Amp. This is a PNP amplifier with the reference voltage as its supply voltage.
Output of Op Amp. This is a NPN emitter follower output with a 22 kΩ internal on-chip pull-down resistor. Its supply
2
AIN–
3
AOUT
voltage is V
.
CC
4
5
6
GND
Ground.
COMPIN–
Inverting input of Comparator. This is a PNP amplifier with V as its positive supply voltage.
CC
V
S
Reference voltage output. The output reference is typically 1.27 V. The output reference is derived from the series
combination of a NPN transistor (configured as a diode with the base shorted to the collector) and a 120 kΩ resistor.
7
8
COMPOUT
Output of Comparator. It is an open collector output stage which requires an external pull-up resistor.
Positive supply. Its operating range is 1.8 to 6.0 V.
V
CC
3
2002 Nov 13
Philips Semiconductors
Product data
High precision operational amplifier,
comparator, and voltage reference
SA58603
EQUIVALENT CIRCUITS
PIN
NUMBER
PIN
NUMBER
PIN NAME
AIN+
INTERNAL EQUIVALENT CIRCUIT
PIN NAME
INTERNAL EQUIVALENT CIRCUIT
V
V
S
S
1
5
COMPIN–
R
25 kΩ
R
43 kΩ
R
18 kΩ
R
39 kΩ
V
S
V
2
AIN–
6
V
S
CC
R
120 kΩ
R
25 kΩ
R
18 kΩ
V
V
CC
CC
3
AOUT
7
COMPOUT
R
22 kΩ
R
47 kΩ
4
GND
8
V
CC
MAXIMUM RATINGS
SYMBOL
PARAMETER
MIN.
–0.3
–0.3
–40
–40
–
MAX.
UNIT
V
V
V
Single supply voltage
+10
+10
+125
+85
300
CC
IN
Input voltage
V
T
stg
Storage temperature
Operating temperature
Power dissipation
°C
T
°C
amb
P
mW
4
2002 Nov 13
Philips Semiconductors
Product data
High precision operational amplifier,
comparator, and voltage reference
SA58603
ELECTRICAL CHARACTERISTICS
V
CC
= 3.0 V, V = 0 V, and T
= 25 °C, unless otherwise specified.
IN
amb
SYMBOL
PARAMETER
CONDITIONS
MIN.
–
TYP.
0.1
MAX.
0.15
–
UNIT
mA
I
Supply current
CC
I
Reference voltage output current
Reference voltage
0.3
1.22
–
–
mA
OVS
V
S
1.27
±100
60
1.32
–
V
∆V
Reference voltage temperature drift
Power supply rejection ratio
Power supply voltage operating range
ppm/°C
dB
S
PSRR
f = 100 Hz
50
–
V
CC
1.8
3.0
6.0
V
Amplifier section (note 1)
V
V
Input voltage range
Input offset voltage
–0.2
–
–
±0.1
±1
1
0.3
±0.35
±3
V
mV
µV/°C
nA
INA
IOA
∆V /∆T
Input offset voltage temperature drift
Input offset current
T
= –20 to +75 °C
–
IO
amb
I
I
–
10
IOA
Input bias current
–
50
100
–
150
–
nA
i(bias)A
G
Open-loop voltage gain
Output current
80
0.5
0.01
dB
v(ol)A
I
V
= 10 mV; V = 0.5 V
–
mA
V
OA
IN
O
V
OA
Output voltage swing
V
IN
= –5 to +25 mV; R = 10 kΩ
–
V
– 1.0
L
CC
Comparator section (note 2)
Input offset voltage
∆V /∆T Input offset voltage temperature drift
V
V
V
V
= –5 mV
= –5 mV
= –5 mV
–
–
–
5
–
–
±1.0
±10
25
±3.5
mV
µV/°C
nA
IOC
IN
IN
IN
±30
75
IOC
I
I
I
Input bias current
i(bias)C
O(sink)
LO
Output sink current
V
= 10 mV; V = 0.4 V
–
–
mA
IN
O
Output leakage current
Output saturation voltage
V
= V + 1 V
–
0.2
400
µA
O
CC
V
SAT
V
= 10 mV; I = 5 mA
O(sink)
200
mV
IN
NOTES:
1. Amplifier output is emitter follower with an on-chip 22 kΩ pull-down resistor.
2. Comparator output is open collector; it requires an external pull-up resistor. See application section on how to determine this resistor.
5
2002 Nov 13
Philips Semiconductors
Product data
High precision operational amplifier,
comparator, and voltage reference
SA58603
TYPICAL CHARACTERIZATION CURVES
T
amb
= 25 °C, V = 3 V, V = 0 V, unless otherwise specified.
CC IN
160
140
120
1.280
1.276
1.272
100
1.268
80
60
1.264
1.260
–50
–25
0
25
50
(°C)
75
100
–50
–25
0
25
50
75
100
AMBIENT TEMPERATURE, T
AMBIENT TEMPERATURE, T
(°C)
amb
amb
SL01915
SL01916
Figure 3. Supply current versus ambient temperature.
Figure 4. Reference voltage versus ambient temperature.
0.20
0.15
0.10
1.8
1.6
1.4
0.05
0
1.2
–0.05
–0.10
–0.15
–0.20
1.0
0.8
–50
–25
0
25
50
75
100
–50
–25
0
25
50
75
100
AMBIENT TEMPERATURE, T
(°C)
AMBIENT TEMPERATURE, T (°C)
amb
amb
SL01920
SL01917
Figure 5. Amplifier input offset voltage versus
ambient temperature.
Figure 6. Amplifier input offset current versus
ambient temperature.
54
3.0
2.5
2.0
V
= 10 mV
IN
V
= 0.5 V
OA
53
52
51
1.5
50
49
1.0
0.5
–50
–25
0
25
50
75
100
–50
–25
0
25
50
75
100
AMBIENT TEMPERATURE, T
(°C)
AMBIENT TEMPERATURE, T (°C)
amb
amb
SL01919
SL01918
Figure 7. Amplifier input bias current versus
ambient temperature.
Figure 8. Amplifier output current versus ambient temperature.
6
2002 Nov 13
Philips Semiconductors
Product data
High precision operational amplifier,
comparator, and voltage reference
SA58603
TYPICAL CHARACTERIZATION CURVES (continued)
T
amb
= 25 °C, V = 3 V, V = 0 V, unless otherwise specified.
CC IN
1.5
1.3
1.1
2.40
2.35
2.30
V
= –5 mV
V
= –5 mV
IN
IN
R
= 10 kΩ
R
= 10 kΩ
L
L
2.25
0.9
0.7
2.20
2.15
–50
–25
0
25
50
75
100
–50
–25
0
25
50
75
100
AMBIENT TEMPERATURE, T
(°C)
AMBIENT TEMPERATURE, T (°C)
amb
amb
SL01921
SL01922
Figure 9. Amplifier output voltage, LOW
versus ambient temperature.
Figure 10. Amplifier output voltage, HIGH
versus ambient temperature.
1.6
1.4
1.2
25.6
25.5
25.4
25.3
25.2
V
= –5 mV
V
= –5 mV
IN
IN
1.0
25.1
25.0
24.9
0.8
0.6
–50
–25
0
25
50
75
100
–50
–25
0
25
50
75
100
AMBIENT TEMPERATURE, T
(°C)
AMBIENT TEMPERATURE, T (°C)
amb
amb
SL01923
SL01924
Figure 11. Comparator input offset voltage versus
ambient temperature.
Figure 12. Comparator bias current versus
ambient temperature.
35
250
230
210
V
= 10 mV
V
= 10 mV
IN
IN
V
= 0.4 V
I
= 5 mA
OC
O(sink)C
30
25
20
190
15
10
170
150
–50
–25
0
25
50
75
100
–50
–25
0
25
50
75
100
AMBIENT TEMPERATURE, T
(°C)
AMBIENT TEMPERATURE, T (°C)
amb
amb
SL01925
SL01926
Figure 13. Comparator output sink current versus
ambient temperature.
Figure 14. Comparator output saturation voltage versus
ambient temperature.
7
2002 Nov 13
Philips Semiconductors
Product data
High precision operational amplifier,
comparator, and voltage reference
SA58603
TYPICAL CHARACTERIZATION CURVES (continued)
T
amb
= 25 °C, V = 3 V, V = 0 V, unless otherwise specified.
CC IN
130
120
110
1.275
1.273
1.271
100
1.269
90
80
1.267
1.265
2
4
6
8
10
2
4
6
8
10
SUPPLY VOLTAGE, V (V)
SUPPLY VOLTAGE, V (V)
CC
CC
SL01927
SL01928
Figure 15. Supply current versus supply voltage.
Figure 16. Reference voltage versus supply voltage.
140
130
120
1.4
1.2
1.0
110
0.8
100
90
0.6
0.4
2
4
6
8
10
2
4
6
8
10
SUPPLY VOLTAGE, V (V)
SUPPLY VOLTAGE, V (V)
CC
CC
SL01929
SL01930
Figure 17. Amplifier input offset voltage versus supply voltage.
Figure 18. Amplifier input offset current versus supply voltage.
51.0
50.6
50.2
3.5
V
V
= 10 mV
IN
= 0.5 V
OA
3.1
2.7
49.8
2.3
49.4
49.0
1.9
1.5
2
4
6
8
10
2
4
6
8
10
SUPPLY VOLTAGE, V (V)
SUPPLY VOLTAGE, V (V)
CC
CC
SL01931
SL01932
Figure 19. Amplifier input bias current versus supply voltage.
Figure 20. Amplifier output current versus supply voltage.
8
2002 Nov 13
Philips Semiconductors
Product data
High precision operational amplifier,
comparator, and voltage reference
SA58603
TYPICAL CHARACTERIZATION CURVES (continued)
T
amb
= 25 °C, V = 3 V, V = 0 V, unless otherwise specified.
CC IN
1.8
1.7
10
8
V
= 25 mV
IN
V
= –5 mV
IN
R
= 10 kΩ
L
R
= 10 kΩ
L
1.6
1.5
6
1.4
1.3
4
2
0
1.2
1.1
2
4
6
8
10
2
4
6
8
10
SUPPLY VOLTAGE, V (V)
SUPPLY VOLTAGE, V (V)
CC
CC
SL01934
SL01933
Figure 21. Amplifier output voltage, LOW
versus supply voltage.
Figure 22. Amplifier output voltage, HIGH
versus supply voltage.
1.10
1.08
1.06
30
29
28
V
= –5 mV
IN
V
= –5 mV
IN
1.04
1.02
27
26
1.00
0.98
25
24
2
4
6
8
10
2
4
6
8
10
SUPPLY VOLTAGE, V (V)
SUPPLY VOLTAGE, V (V)
CC
CC
SL01935
SL01937
Figure 23. Comparator input offset voltage
versus supply voltage.
Figure 24. Comparator bias current versus supply voltage.
21.4
20.9
20.4
210
V
= 10 mV
V
= 10 mV
IN
IN
V
= 0.4 V
I
= 5 mA
OC
O(sink)C
205
200
19.9
19.4
195
190
18.9
18.4
185
180
2
4
6
8
10
2
4
6
8
10
SUPPLY VOLTAGE, V (V)
SUPPLY VOLTAGE, V (V)
CC
CC
SL01936
SL01938
Figure 25. Comparator output sink current
versus supply voltage.
Figure 26. Comparator output saturation voltage
versus supply voltage.
9
2002 Nov 13
Philips Semiconductors
Product data
High precision operational amplifier,
comparator, and voltage reference
SA58603
TYPICAL CHARACTERIZATION CURVES (continued)
T
amb
= 25 °C, V = 3 V, V = 0 V, unless otherwise specified.
CC IN
0
100
90
–10
80
–20
–30
70
60
50
–40
–50
40
30
20
–60
–70
10
0
0.1
1
10
100
0.01
0.1
1
10
100
1000
10000
FREQUENCY, f (kHz)
FREQUENCY, f (kHz)
SL01939
SL01940
Figure 27. Power supply rejection ratio versus frequency.
Figure 28. Amplifier open loop gain versus frequency.
1.34
1.29
1.24
600
V
= 10 mV
IN
500
400
300
200
1.19
1.14
1.09
100
0
0
1
2
3
4
5
0
5
10
15
20
(mA)
O(sink)C
25
OUTPUT CURRENT, I (mA)
OUTPUT SINK CURRENT, I
OA
SL01941
SL01942
Figure 29. Reference voltage versus output current.
Figure 30. Comparator output saturation voltage
versus sink current.
10
2002 Nov 13
Philips Semiconductors
Product data
High precision operational amplifier,
comparator, and voltage reference
SA58603
APPLICATION INFORMATION
Comparator output pull-up resistor
The comparator output pull-up resistor is determined by the
following formula:
Typical gas pilot detection circuit
Figure 31 shows a typical application of the SA58603 in which the
input amplifier is driven by a thermocouple heated by the pilot flame
in a water heater or gas burner. The circuit comparator may be
programmed to detect when the pilot is out. The IC is operated from
a single voltage supply making it capable of battery backup with loss
of AC power. It may be operated from a one-cell Lithium battery or
ǒV
Ǔ
CC * VSAT(max)
R +
IO(sink)(min)
where V
= 400 mV, and I
= 5 mA.
SAT(max)
O(sink)(min)
two alkaline cells. 10 nF bypass capacitors are placed from V and
CC
reference voltage output (pin 6) to ground to filter power supply
noise and interference from external noise sources.
Comparator threshold voltage
The comparator threshold voltage is determined by R4 and R5.
They form a voltage divider from the reference voltage output (V ,
S
Selecting external components
Pin 6) to ground. In the application example, V
, the comparator
COMP
input (COMPIN–, Pin 5) is connected to the junction of R4 and R5.
The input level is calculated by following relationship:
Gain
Recommended amplifier gain is 40 dB. The gain is is set by the
combination of R1, R2, and R3 as shown in the following equations:
R5
VCOMP + 1.27V
(R4 ) R5)
(R3 ) R2)
Av +
; Av (dB) = 20 log (Av); R3 = R1 k R2
R3
For a gain of 40 dB, Av = 100 V/V;
if R2 = 1 kΩ, then 99*R3 = 1 kΩ; R3 = 10.1 Ω.
R1 R2
(R1 ) R2)
R3 +
; R3 × R1 + R3 × R2 = R1 × R2:
R3 × R2 = R1 (R2 – R3)
R3 R2
(R2 * R3)
Thus R1 +
+ 10.2W
AMPLIFIER OUTPUT
ADC TO INPUT
V
CC
8
3
AMPLIFIER
PULL-UP
RESISTANCE
R2
R1
THERMOCOUPLE
2
1
COMPARATOR
COMPARATOR
RESISTANCE
7
R3
R
22 kΩ
1.27 V
4
6
5
V
COMP
R4
R5
TO ADC AV
TO ADC AV
REF
SS
GND
SL01537
Figure 31. Typical flame detection circuit.
11
2002 Nov 13
Philips Semiconductors
Product data
High precision operational amplifier,
comparator, and voltage reference
SA58603
PACKING METHOD
GUARD
BAND
TAPE
TAPE DETAIL
REEL
ASSEMBLY
COVER TAPE
CARRIER TAPE
BARCODE
LABEL
BOX
SL01305
Figure 32. Tape and reel packing method.
12
2002 Nov 13
Philips Semiconductors
Product data
High precision operational amplifier,
comparator, and voltage reference
SA58603
SO8: plastic small outline package; 8 leads; body width 3.9 mm
pin 1 index
B
2
4.95
4.80
0.51
0.33
4.95
4.80
1.27
0.38
0.076
1.73
0.189
0.195
0.013
0.020
0.050
0.015
0.003
0.068
SO8
13
2002 Nov 13
Philips Semiconductors
Product data
High precision operational amplifier,
comparator, and voltage reference
SA58603
REVISION HISTORY
Rev
Date
Description
_2
20021113
Product data; second version (9397 750 10671). Supersedes SA58603_1 of 2001 Oct 03
(9397 750 08955).
Engineering Change Notice 853–2289 29151 (date: 20021105).
Modifications:
• Add “Typical characterization curves” section.
_1
20011003
Product data; initial version (9397 750 08955).
Engineering Change Notice 853–2289 27197 (date: 20011003).
14
2002 Nov 13
Philips Semiconductors
Product data
High precision operational amplifier,
comparator, and voltage reference
SA58603
Data sheet status
Product
status
Definitions
[1]
Level
Data sheet status
[2] [3]
I
Objective data
Development
This data sheet contains data from the objective specification for product development.
Philips Semiconductors reserves the right to change the specification in any manner without notice.
II
Preliminary data
Product data
Qualification
Production
This data sheet contains data from the preliminary specification. Supplementary data will be published
at a later date. Philips Semiconductors reserves the right to change the specification without notice, in
order to improve the design and supply the best possible product.
III
This data sheet contains data from the product specification. Philips Semiconductors reserves the
right to make changes at any time in order to improve the design, manufacturing and supply. Relevant
changes will be communicated via a Customer Product/Process Change Notification (CPCN).
[1] Please consult the most recently issued data sheet before initiating or completing a design.
[2] The product status of the device(s) described in this data sheet may have changed since this data sheet was published. The latest information is available on the Internet at URL
http://www.semiconductors.philips.com.
[3] For data sheets describing multiple type numbers, the highest-level product status determines the data sheet status.
Definitions
Short-form specification — The data in a short-form specification is extracted from a full data sheet with the same type number and title. For detailed information see
the relevant data sheet or data handbook.
Limitingvaluesdefinition— Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 60134). Stress above one or more of the limiting
values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given
in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability.
Application information — Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors make no
representation or warranty that such applications will be suitable for the specified use without further testing or modification.
Disclaimers
Life support — These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be
expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications do so at their own risk and agree
to fully indemnify Philips Semiconductors for any damages resulting from such application.
Right to make changes — Philips Semiconductors reserves the right to make changes in the products—including circuits, standard cells, and/or software—described
or contained herein in order to improve design and/or performance. When the product is in full production (status ‘Production’), relevant changes will be communicated
viaaCustomerProduct/ProcessChangeNotification(CPCN).PhilipsSemiconductorsassumesnoresponsibilityorliabilityfortheuseofanyoftheseproducts,conveys
nolicenseortitleunderanypatent, copyright, ormaskworkrighttotheseproducts, andmakesnorepresentationsorwarrantiesthattheseproductsarefreefrompatent,
copyright, or mask work right infringement, unless otherwise specified.
Koninklijke Philips Electronics N.V. 2002
Contact information
All rights reserved. Printed in U.S.A.
For additional information please visit
http://www.semiconductors.philips.com.
Fax: +31 40 27 24825
Date of release: 11-02
9397 750 10671
For sales offices addresses send e-mail to:
sales.addresses@www.semiconductors.philips.com.
Document order number:
Philips
Semiconductors
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