OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

MAX6037CAUK30+T

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18
MAX6037
Low-Power, Fixed and Adjustable
Reference with Shutdown in SOT23
______________________________________________________________________________________ 13
MAX6037_12 SHUTDOWN TRANSIENT
(V
OUT
= 1.25V)
MAX6037 toc22
2ms/div
V
OUT
500mV/div
GND
GND
V
SHDN
+3V
1.25V
C
OUT
= 0.02µF
MAX6037_12
EXITING SHUTDOWN TRANSIENT
(V
OUT
= 1.25V)
MAX6037 toc23
10µs/div
V
OUT
500mV/div
GND
GND
V
SHDN
+3V
1.25V
C
OUT
= 0.02µF
MAX6037_41 SHUTDOWN TRANSIENT
(V
OUT
= 4.096V)
MAX6037 toc24
10ms/div
V
OUT
2V/div
GND
GND
V
SHDN
+5V
+4.096V
C
OUT
= 0.02µF
MAX6037_41
EXITING SHUTDOWN TRANSIENT
(V
OUT
= 4.096V)
MAX6037 toc25
400µs/div
V
OUT
2V/div
GND
GND
V
SHDN
+5V
+4.096V
C
OUT
= 0.02µF
Typical Operating Characteristics (continued)
(V
IN
= +3V for the MAX6037_12 and MAX6037_21; V
IN
= +5V for the MAX6037_25, MAX6037_30, MAX6037_33, and MAX6037_41;
I
OUT
= 0, C
OUT
= 0.1µF, C
IN
= 0.1µF, T
A
= +25°C, unless otherwise specified.)
MAX6037_25 LONG-TERM STABILITY
vs. TIME (V
OUT
= 2.500V)
MAX6037 toc26
TIME (HOURS)
V
OUT
(V)
800600200 400
2.4985
2.4990
2.4995
2.5000
2.5005
2.5010
2.5015
2.5020
2.4980
0 1000
TWO TYPICAL PARTS
MAX6037
Low-Power, Fixed and Adjustable Reference
with Shutdown in SOT23
14 ______________________________________________________________________________________
Pin Description
PIN
NAME
FUNCTION
I.C.
Internally connected. (All fixed output
voltage options.) Do not connect anything
to this pin.
1
ADJ
Output Voltage Adjustment Connection.
Connect a resistor-divider between OUT,
ADJ and GND to set the output voltage.
(MAX6037_ADJ only).
2 GND Ground
3
SHDN
Active-Low Shutdown Input. Pull SHDN
low to disable the device. Connect SHDN
to IN for normal operation.
4IN
Supply Voltage Input. Bypass with a 0.1µF
to 1µF capacitor to GND.
5 OUT
Reference-Voltage Output. Connect an
output capacitor to GND in the 0.02µF to
1µF range.
Typical Operating Characteristics (continued)
(V
IN
= +3V for the MAX6037_12 and MAX6037_21; V
IN
= +5V for the MAX6037_25, MAX6037_30, MAX6037_33, and MAX6037_41;
I
OUT
= 0, C
OUT
= 0.1µF, C
IN
= 0.1µF, T
A
= +25°C, unless otherwise specified.)
Note 12: Many of the MAX6037 family Typical Operating Characteristics are extremely similar. The extremes of these characteristics
are found in the MAX6037_12 (1.25V output) and the MAX6037_41 (4.096V output). The Typical Operating Characteristics of
the remainder of the MAX6037 family typically lie between those two extremes and can be estimated based on their output
voltages.
MAX6037_41 OUTPUT NOISE
(0.1Hz TO 10Hz)
MAX6037 toc27
1s/div
V
OUT
10µV/div
V
OUT
= 4.096V
MAX6037_12 OUTPUT NOISE
(0.1Hz TO 10Hz)
MAX6037 toc28
1s/div
V
OUT
2µV/div
V
OUT
= 1.25V
GND
INSHDN
( ) MAX6037_AUKADJ.
1 5 OUTI.C. (ADJ)
MAX6037
SOT23
+
TOP VIEW
2
34
Pin Configuration
Detailed Description
The MAX6037 is a family of low-dropout, micropower
voltage references. These devices all feature a shut-
down mode by forcing SHDN low, dropping the quies-
cent current to less than 500nA. The MAX6037 can sink
and source up to 5mA with less than 410mV of dropout
voltage, making them attractive for use in low-voltage
applications. The MAX6037 is available in six fixed out-
put voltages of 1.25V, 2.048V, 2.5V, 3.0V, 3.3V and
4.096V, and an adjustable output version for voltages
between the range of 1.184V and 5V.
Shutdown
The MAX6037 features an active-low shutdown mode.
Pulling SHDN low disables the output and forces the
quiescent current to less than 500nA (typically 50pA).
Connect SHDN to IN for normal operation.
MAX6037_ADJ Adjustable Output Voltage
Set the output voltage on the MAX6037_ADJ by placing
a resistor-divider network between OUT, ADJ, and GND
(See Figure 1). Use the following formula to calculate
the output voltage:
where V
ADJ
= 1.184V. Set R2 = 1MΩ or less. Currents
through Resistor R1 and R2 add to the quiescent supply
current.
Supply Current
The quiescent supply current of the series-mode
MAX6037 family is typically 190µA to 210µA. When the
supply voltage is below the minimum-specified input
voltage during turn-on, the device can draw up to
250µA beyond the nominal supply current. The input
voltage source must be capable of providing this cur-
rent to ensure reliable turn-on.
Thermal Hysteresis
Output voltage hysteresis is the change of output volt-
age at T
A
= +25°C before and after the device is
cycled over its entire operating temperature range. The
typical thermal hysteresis value is 500ppm.
V
R
R
V
OUT ADJ
=+
⎛
⎝
⎜
⎞
⎠
⎟
1
1
2
MAX6037
Low-Power, Fixed and Adjustable Reference
with Shutdown in SOT23
______________________________________________________________________________________ 15
OUT
R2
ADJ
* OPTIONAL
*
IN
2.5V TO 5.5V INPUT
GND
SHDN
R1
REFERENCE
OUTPUT
0.02µF
TO 1µF
MAX6037_ADJ
Figure 1. MAX6037_ADJ Typical Operating Circuit
TEMPERATURE
COEFFICIENT
(ppm/°C)
110
100
16-BIT
14-BIT
12-BIT
10-BIT
8-BIT
0.01
0.1
10
100
1000
1
10,000
18-BIT
20-BIT
OPERATING TEMPERATURE RANGE (T
MAX
- T
MIN
) (°C)
Figure 2. Temperature Coefficient vs. Operating Temperature Range for a 1 LSB Maximum Error
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18

MAX6037CAUK30+T

Mfr. #:
Buy MAX6037CAUK30+T
Manufacturer:
Maxim Integrated
Description:
Voltage References Fixed & Adjustable Ref w/Shutdown
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet