MAX675CSA-G107-T [MAXIM]
Voltage Reference,;型号: | MAX675CSA-G107-T |
厂家: | MAXIM INTEGRATED PRODUCTS |
描述: | Voltage Reference, |
文件: | 总5页 (文件大小:320K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
19-2561; Rev 2; 7/04
+5V Precision Voltage Reference
General Description
Features
The MAX675 is a precision voltage reference that is
pretrimmed to within ±±0.5ꢀ of 5ꢁ0 The reference feaꢂ
tures excellent temperature stability (as low as
.20±ppm/°C guaranteed), low current drain and low
noise0 It is supplied in the spaceꢂsaving narrow SO
package, as well as, the standard 8ꢂpin Plastic DIP
package0
ꢀ Pretrimmed to +5V, ±±0.5ꢀ
ꢀ Excellent Temperature Stability: .2ppm/°C
ꢀ Low Noise: .±µV
P-P
ꢀ Low Supply Current: .04mA (max)
ꢀ Short-Circuit Protected
ꢀ Load Regulation ±0±±.ꢀ/mA
ꢀ Pin-for-Pin Compatible with REF±2
Applications
Ordering Information
A/D Converters
INITIAL
ERROR
(mV)
PIN-
TEMPCO
D/A Converters
PART
TEMP RANGE
PACKAGE (ppm/°C)
Digital ꢁoltmeters
ꢁoltage Regulators
Threshold Detectors
MAX675CPA
MAX675CSA
0°C to +70°C 8 PDIP
12
12
15
15
7
7
7
7
8 Narrow
0°C to +70°C
SO
MAX675EPA -40°C to +85°C 8 PDIP
8 Narrow
MAX675ESA -40°C to +85°C
SO
Ordering Information continued at end of data sheet.
Pin Configurations
Typical Operating Circuit
15V
2
TOP VIEW
V
IN
6
5
V
OUTPUT
OUT
N.C.
1
2
3
4
8
7
6
5
N.C.
N.C.
V
IN
MAX675
3
MAX675
TEMP
TEMP
GND
V
OUT
TRIM
R
P
TRIM
10kΩ
GND
4
SO/DIP
REFERENCE WITH TRIMMED OUTPUT
Pin Configurations continued at end of data sheet.
________________________________________________________________ Maxim Integrated Products
.
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
+5V Precision Voltage Reference
ABSOLUTE MAXIMUM RATINGS
Input Voltage .........................................................................40V
Power Dissipation
TO-99 (TV) (derate at 7.1mW/ C above +80°C)...........500mW
CERDIP (J) (derate at 6.7mW/ C above +75°C) ..........500mW
Plastic DIP (P) (derate at 5.6mW/ C above +36°C) .....500mW
Narrow SO (S) (derate at 5.0mW/ C above +55°C) .....300mW
Storage Temperature Range.............................-65°C to +150°C
Operating Temperature Range
MAX675C............................................................0°C to +70°C
MAX675E.........................................................-40°C to +85°C
MAX675M ......................................................-55°C to +125°C
Dice Junction Temperature (T ) ........................-65°C to +150°C
J
Output Short-Circuit Duration
(to Ground or V )......................................................Indefinite
IN
Lead Temperature (soldering, 60s) .................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V = +15V, T = +25°C, unless otherwise noted.)
IN
A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
7
UNITS
Output Voltage Tolerance
I = 0mA
L
mV
MAX675CTV/CPA/CSA
MAX675ETV/EJA/EPA/ESA
MAX675MTV/MJA
Rp = 10
12
15
20
Output Voltage Temperature
Coefficient (Note 1)
TCV
ppm/°C
O
Output Adjustment Range
Line Regulation (Note 2)
Load Regulation (Note 2)
Turn-On Settling Time
Quiescent Supply Current
Noise (Note 3)
V
150
300
0.006
0.001
5
mV
%/V
%/mA
µs
TRIM
V
= 18V to 33V
0.01
IN
I = 0 to 10mA
L
0.002
t
To 0.1% of final value
No load
ON
I
750
10
1400
15
µA
Q
e
0.1Hz to 10Hz
µV
P-P
N(P-P)
Sink Current
I
0.3
0.5
mA
S
Short-Circuit Current
I
V
= 0V
OUT
30
mA
SC
Current Temperature Voltage
Output
V
(Note 4)
630
mV
T
Note 1: Temperature Coefficient is measured by the “box” method, i.e., the maximum ∆V
Note 2: Line and Load Regulation specifications include the effect of self-heating.
is divided by ∆T.
OUT
Note 3: Guaranteed by design for MAX675CPA, MAX675CSA, MAX675EPA, MAX675ESA; sample tested for all other grades and
packages.
Note 4: Limit current in or out of pin 3 to 50nA and capacitance on pin 3 to 30pF.
2
_______________________________________________________________________________________
+5V Precision Voltage Reference
Output Adjustment
880
830
780
730
680
630
580
530
480
430
The MAX675 trim terminal can be used to adjust the out-
put voltage over a 5V 150mV range. This feature allows
system errors to be trimmed by setting the reference to a
voltage other than 5V such as 5.120V for binary applica-
tions (see Typical Operating Circuit). The trim terminal
may, of course, be left open if no adjustment is needed.
Adjustment of the output does not significantly affect the
temperature performance of the device. The temperature
coefficient change is approximately 0.7ppm/°C for each
100mV of output adjustment from its initial value.
Temperature Voltage Output
The MAX675 provides a temperature-dependent output
voltage on the TEMP pin. This voltage is proportional to
the absolute temperature, and has a scale factor of
approximately 2.1mV/°C (Figure 2).
-60 -40 -20
0
20 40 60 80 100 120 140
TEMPERATURE (°C)
Figure 2. MAX675 Temperature Voltage Output vs.
Temperature
Output Voltage = 2.1(T + 273)mV
where T = Temperature in °C
Typical Operating Characteristics
(T = +25°C, unless otherwise noted.)
A
MAX675 OUTPUT WIDEBAND
NOISE vs. BANDWIDTH (0.1Hz
TO FREQUENCY INDICATED)
LINE REGULATION
vs. FREQUENCY
MAXIMUM LOAD CURRENT
vs. INPUT VOLTAGE
76
35
30
25
20
15
10
5
10,000
1000
100
V
A
= 15V
SHORT-CIRCUIT PROTECTION
IN
T
= +25°C
66
56
46
36
26
16
6
500mW MAXIMUM
DISSIPATION
T
= +25°C
A
0
10
10
100
1k
10k
100k
1M
5
10
15
20
25
10
100
1k
10k
100k
1M
FREQUENCY (Hz)
INPUT VOLTAGE (V)
FREQUENCY (Hz)
_______________________________________________________________________________________
3
+5V Precision Voltage Reference
Typical Operating Characteristics (continued)
(T = +25°C, unless otherwise noted.)
A
OUTPUT CHANGE DUE TO
THERMAL SHOCK
MAXIMUM LOAD CURRENT
vs. TEMPERATURE
0.035
0.030
0.025
0.020
0.015
0.010
0.005
0
30
25
20
15
10
5
V
A
= 15V
V
= 15V
IN
=
IN
T
T =
A
+25°C +75°C
DEVICE IMMERSED
IN +75°C OIL BATH
0
-10
0
10
20
30
40
50
60
-60 -40 -20
0
20 40 60 80 100 120 140
TIME (s)
TEMPERATURE (°C)
Typical Applications
15V
2
1.1mA
2
V
IN
V
IN
6
6
3
V
OUT
+5V
TEMP
V
OUT
+
10kΩ
MAX675
TEMP
10kΩ
MAX675
3
5
5
100kΩ
5.000V
TRIM
+15V
TRIM
2
GND
4
GND
4
6
-5V
3
4
-15V
9V
5kΩ
-
MAX400
Figure 3. Precision Calibration Standard
Figure 4. 5V Reference
4
_______________________________________________________________________________________
+5V Precision Voltage Reference
+15V
15V
2
2
9.09kΩ
V
REF
6
5
V
IN
V
OUT
V
IN
6
5
V
OUT
5.11kΩ
2
3
50kΩ
1.5kΩ
7
TRIM
-
V
OUT
6
5.0V
R
1.5kΩ
5%
(10mV/°C)
I
=
+ 1mA
OUT
MAX675
TEMP
MAX675
+
4
R
3
MAX400
3
TEMP
TRIM
*
GND
4
GND
4
200kΩ
-15V
I
OUT
*UP TO 10 FEET OF SHIELDED
4-CONDUCTOR CABLE.
VOLTAGE COMPLIANCE -25V TO +8V
Figure 5. Current Source
Figure 6. Precision Temperature Transducer with Remote
Sensor
Chip Topography
Pin Configurations (continued)
V
IN
2
TOP VIEW
6
V
OUT
N.C.
8
N.C.
2
N.C.
6
1
3
7
5
0.57”
1.45mm
V
V
OUT
IN
MAX675
5
TEMP
TRIM
TRIM
4
GROUND
(CASE)
4
3
TO-99 METAL CAN
GND
TEMP
0.78”
1.98mm
N.C.
1
2
3
4
8
7
6
5
N.C.
N.C.
Ordering Information
V
IN
MAX675
INITIAL
ERROR
(mV)
PIN-
TEMPCO
TEMP
GND
V
OUT
PART
TEMP RANGE
PACKAGE (ppm/°C)
TRIM
MAX675CTV* 0°C to +70°C 8 TO-99
MAX675ETV* -40°C to +85°C 8 TO-99
MAX675EJA* -40°C to +85°C 8 CERDIP
MAX675MTV* -55°C to +125°C 8 TO-99
MAX675MJA* -55°C to +125°C 8 CERDIP
12
15
15
20
20
7
7
7
7
7
CERDIP
*Contact factory for availability. Not recommended for new designs.
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________ 5
© 2004 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
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