MAX6138
0.1%, 25ppm, SC70 Shunt Voltage Reference
with Multiple Reverse Breakdown Voltages
_______________________________________________________________________________________ 5
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
MAX6138A (0.1%) 4.0919 4.0960 4.1001
MAX6138B (0.2%) 4.0878 4.0960 4.1042
Reverse Breakdown
Voltage (Note 2)
V
R
T
A
= +25°C
MAX6138C (0.5%) 4.0755 4.0960 4.1165
V
Minimum Operating
Current
I
RMIN
50 73 µA
Reverse Voltage
Temperature Coefficient
(Notes 2, 3)
TC 4 25 ppm/°C
I
RMIN
≤ I
R
≤ 1mA 0.5 1.2
Reverse Breakdown
Voltage Change with
Operating Current Change
∆V
R
/∆I
R
1mA ≤ I
R
≤ 15mA 3.0 10.0
mV
Reverse Dynamic
Impedance (Note 3)
Z
R
I
R
= 1mA, f = 120Hz, I
AC
= 0.1I
R
0.5 1.0 Ω
Wideband Noise e
N
10Hz ≤ f ≤ 10kHz 64 µV
RMS
Reverse Breakdown
Voltage Long-Term
Stability
∆V
R
t = 1000h 120 ppm
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
MAX6138A (0.1%) 4.9950 5.0000 5.0050
MAX6138B (0.2%) 4.9900 5.0000 5.0100
Reverse Breakdown
Voltage (Note 2)
V
R
T
A
= +25°C
MAX6138C (0.5%) 4.9750 5.0000 5.0250
V
M i ni m um Op er ati ng C ur r ent I
RMIN
54 80 µA
Reverse Voltage
Temperature Coefficient
(Notes 2, 3)
TC 4 25 ppm/°C
I
RMIN
≤ I
R
≤ 1mA 0.5 1.4
Reverse Breakdown
Voltage Change with
Operating Current Change
∆V
R
/∆I
R
1mA ≤ I
R
≤ 15mA 3.5 12.0
mV
Reverse Dynamic
Impedance (Note 3)
Z
R
I
R
= 1mA, f = 120Hz, I
AC
= 0.1I
R
0.5 1.1 Ω
Wideband Noise e
N
10Hz ≤ f ≤ 10kHz 80 µV
RMS
Rever se Br eakd ow n
V ol tag e Long - Ter m S tab i l i ty
∆V
R
t = 1000h 120 ppm
ELECTRICAL CHARACTERISTICS—MAX6138_41 (4.096V)
(I
R
= 100µA, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
ELECTRICAL CHARACTERISTICS—MAX6138_50 (5.0V)
(I
R
= 100µA, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
Note 1: All devices are 100% production tested at +25°C and are guaranteed by correlation for T
A
= T
MAX
to T
MIN
, as specified.
Note 2: TC is measured by the “box” method, i.e. (V
MAX
- V
MIN
) / (T
MAX
- T
MIN
)
Note 3: Guaranteed by design.
