MAX6126
Ultra-High-Precision, Ultra-Low-Noise,
Series Voltage Reference
4
Maxim Integrated
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
I
OUT
= 5mA 0.06 0.2
Dropout Voltage (Note 3) V
IN
- V
OUT
∆V
OUT
= 0.1%
I
OUT
= 10mA 0.12 0.4
V
Short to GND 160
OUT Short-Circuit Current I
SC
Short to IN 20
mA
SO 35
Thermal Hysteresis (Note 2)
∆V
OUT
/
cycle
µMAX 80
ppm
SO 20
Long-Term Stability
∆V
OUT
/
time
1000hr at T
A
= +25°C
µMAX 100
ppm/
1000hr
DYNAMIC CHARACTERISTICS
f = 0.1Hz to 10Hz 1.45 µV
P-P
f = 1kHz, C
NR
= 0 75Noise Voltage e
OUT
f = 1kHz, C
NR
= 0.1µF 45
nV/√Hz
C
NR
= 0 1
Turn-On Settling Time t
R
To V
OUT
= 0.01% of
final value
C
NR
= 0.1µF 20
ms
Capacitive-Load Stability Range C
LOAD
No sustained oscillations 0.1 to 10 µF
INPUT
Supply Voltage Range V
IN
Guaranteed by line-regulation test 2.7 12.6 V
T
A
= +25°C 380 550
Quiescent Supply Current I
IN
T
A
= -40°C to +125°C 725
µA
ELECTRICAL CHARACTERISTICS—MAX6126_25 (V
OUT
= 2.500V) (continued)
(V
IN
= 5V, C
LOAD
= 0.1µF, I
OUT
= 0, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER SYMBOL CONDTIONS MIN TYP MAX UNITS
OUTPUT
Output Voltage V
OUT
T
A
= +25°C 2.800 V
A grade µMAX -0.06 +0.06
Output Voltage Accuracy
Referred to VOUT, T
A
=
+25°C
B grade µMAX -0.10 +0.10
%
A grade µMAX 1 3
T
A
= -40°C to +85°C
B grade µMAX 2 7
A grade µMAX 2 5
Output Voltage Temperature
Coefficient (Note 1)
TCV
OUT
T
A
= -40°C to +125°C
B grade µMAX 3 12
ppm/°C
T
A
= +25°C 3.5 23
Line Regulation ∆V
OUT
/∆V
IN
3.0V ≤ V
IN
≤ 12.6V
T
A
= -40°C to
+125°C
45
µV/V
Sourcing: 0 ≤ I
OUT
≤ 10mA 1.3 28
Load Regulation ∆V
OUT
/∆V
IN
Sinking: -10mA ≤ I
OUT
≤ 0 2.4 28
µV/mA
I
OUT
= 5mA 0.06 0.2
Dropout Voltage (Note 3) V
IN
- V
OUT
∆V
OUT
= 0.1%
I
OUT
= 10mA 0.12 0.4
V
ELECTRICAL CHARACTERISTICS—MAX6126_28 (V
OUT
= 2.800V)
(V
IN
= 5V, C
LOAD
= 0.1µF, I
OUT
= 0, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
