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Número de pieza | MAX6173BASA | |
Descripción | High-Precision Voltage References | |
Fabricantes | Maxim Integrated | |
Logotipo | ||
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No Preview Available ! 19-3249; Rev 0; 5/04
High-Precision Voltage References with
Temperature Sensor
General Description
Features
The MAX6173–MAX6177 are low-noise, high-precision
voltage references. The devices feature a proprietary
temperature-coefficient curvature-correction circuit and
laser-trimmed thin-film resistors that result in a very low
3ppm/°C temperature coefficient and excellent ±0.06%
initial accuracy. The MAX6173–MAX6177 provide a
TEMP output where the output voltage is proportional to
the die temperature, making the devices suitable for a
wide variety of temperature-sensing applications. The
devices also provide a TRIM input, allowing fine trimming
of the output voltage with a resistive divider network. Low
temperature drift and low noise make the devices ideal
for use with high-resolution A/D or D/A converters.
The MAX6173–MAX6177 provide accurate preset +2.5V,
+3.3V, +4.096V, +5.0V, and +10V reference voltages and
accept input voltages up to +40V. The devices draw
320µA (typ) of supply current and source 30mA or sink
2mA of load current. The MAX6173–MAX6177 use
bandgap technology for low-noise performance and
excellent accuracy. The MAX6173–MAX6177 do not
require an output bypass capacitor for stability, and are
stable with capacitive loads up to 100µF. Eliminating the
output bypass capacitor saves valuable board area in
space-critical applications.
The MAX6173–MAX6177 are available in an 8-pin SO
package and operate over the automotive (-40°C to
+125°C) temperature range.
Applications
♦ Wide (VOUT + 2V) to +40V Supply Voltage Range
♦ Excellent Temperature Stability: 3ppm/°C (max)
♦ Tight Initial Accuracy: 0.05% (max)
♦ Low Noise: 3.8µVP-P (typ at 2.5V Output)
♦ Sources up to 30mA Output Current
♦ Low Supply Current: 450µA (max at +25°C)
♦ Linear Temperature Transducer Voltage Output
♦ +2.5V, +3.3V, +4.096V, +5.0V, or +10V Output
Voltages
♦ Wide Operating Temperature Range: -40°C to
+125°C
♦ No External Capacitors Required for Stability
♦ Short-Circuit Protected
Typical Operating Circuit
(VOUT + 2V) TO 40V INPUT
*
*OPTIONAL.
IN
OUT
MAX6173–MAX6177
TEMP
TRIM
GND
REFERENCE
OUTPUT
*
*
A/D Converters
Voltage Regulators
D/A Converters
Digital Voltmeters
Threshold Detectors
Pin Configuration appears at end of data sheet.
Ordering Information/Selector Guide
PART
MAX6173AASA
MAX6173BASA
MAX6174AASA
MAX6174BASA
MAX6175AASA
MAX6175BASA
MAX6176AASA
MAX6176BASA
MAX6177AASA
MAX6177BASA
TEMP RANGE
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
PIN-
PACKAGE
8 SO
8 SO
8 SO
8 SO
8 SO
8 SO
8 SO
8 SO
8 SO
8 SO
OUTPUT
VOLTAGE (V)
2.500
2.500
4.096
4.096
5.000
5.000
10.000
10.000
3.300
3.300
TEMPERATURE COEFFICIENT
(ppm/°C) -40°C TO +125°C
3
10
3
10
3
10
3
10
3
10
INITIAL
ACCURACY (%)
0.06
0.10
0.06
0.10
0.06
0.10
0.05
0.10
0.06
0.10
________________________________________________________________ Maxim Integrated Products 1
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.
1 page High-Precision Voltage References with
Temperature Sensor
ELECTRICAL CHARACTERISTICS—MAX6175 (VOUT = 5.0V)
(VIN = +15V, TA = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
OUTPUT
Output Voltage
Output Adjustment Range
SYMBOL
CONDITIONS
VOUT
∆VTRIM
No load, TA = +25°C
RPOT = 10kΩ
MAX6175A (0.06%)
MAX6175B (0.1%)
MIN TYP
4.9970
4.9950
±3
5.0
5.0
±6
Output-Voltage
Temperature Coefficient
(Note 2)
TCVOUT
MAX6175AASA
TA = -40°C to +125°C
MAX6175BASA
1.5
3
Line Regulation (Note 3)
Load Regulation (Note 3)
Output Short-Circuit Current
Temperature Hysteresis
(Note 4)
Long-Term Stability
DYNAMIC
Noise Voltage
Turn-On Settling Time
INPUT
Supply Voltage Range
Quiescent Supply Current
TEMP OUTPUT
TEMP Output Voltage
TEMP Temperature
Coefficient
∆VOUT /
∆VIN
∆VOUT /
∆IOUT
ISC
∆VOUT/
cycle
∆VOUT/
time
eOUT
tR
VIN
IIN
VTEMP
TCTEMP
7V ≤ VIN ≤ 40V
Sourcing:
0 ≤ IOUT ≤ 10mA
Sinking:
-0.6mA ≤ IOUT ≤ 0
OUT shorted to GND
OUT shorted to IN
TA = +25°C
TA = -40°C to +125°C
TA = +25°C
TA = -40°C to +125°C
TA = +25°C
TA = -40°C to +125°C
1000 hours at TA = +25°C
f = 0.1Hz to 10Hz
f = 10Hz to 1kHz
To VOUT = 0.1% of final value, COUT = 50pF
Guaranteed by line regulation test
No load
TA = +25°C
TA = -40°C to +125°C
0.6
0.8
2
2
50
90
60
3
120
50
9
14.5
230
7.0
320
630
2.1
MAX UNITS
5.0030
5.0050
V
%
3
ppm/°C
10
5
ppm/V
10
10
15
ppm/mA
500
900
mA
ppm
ppm
µVP-P
µVRMS
µs
40.0 V
550
µA
700
mV
mV/°C
_______________________________________________________________________________________ 5
5 Page High-Precision Voltage References with
Temperature Sensor
Typical Operating Characteristics (continued)
(VIN = +5V for VOUT = +2.5V, VIN = +15V for VOUT = +10V, IOUT = 0, TA = +25°C, unless otherwise noted.)
LOAD TRANSIENT
(VOUT = 2.5V, COUT = 1µF, 0 TO -2mA)
MAX6173 toc33
0
IOUT
-2mA
LOAD TRANSIENT
(VOUT = 10V, COUT = 1µF, 0 TO -2mA)
MAX6173 toc34
0
IOUT
-2mA
VOUT
AC-COUPLED
20mV/div
400µs/div
LINE TRANSIENT
(VOUT = 2.5V)
MAX6173 toc35
5.5V
VIN
4.5V
VOUT
AC-COUPLED
5mV/div
400µs/div
LINE TRANSIENT
(VOUT = 10V)
MAX6173 toc36
15.5V
VIN
1V/div
14.5V
COUT = 0
10µs/div
VOUT
AC-COUPLED
200mV/div
TURN-ON TRANSIENT
(VOUT = 2.5V, COUT = 0)
MAX6173 toc37
VIN
2V/div
GND
10µs/div
COUT = 0
VOUT
1V/div
GND
VOUT
AC-COUPLED
200mV/div
2µs/div
TURN-ON TRANSIENT
(VOUT = 2.5V, COUT = 1µF)
MAX6173 toc38
40µs/div
VIN
2V/div
GND
VOUT
1V/div
GND
______________________________________________________________________________________ 11
11 Page |
Páginas | Total 15 Páginas | |
PDF Descargar | [ Datasheet MAX6173BASA.PDF ] |
Número de pieza | Descripción | Fabricantes |
MAX6173BASA | High-Precision Voltage References | Maxim Integrated |
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