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TL4051xQ (Adjustable Version) Electrical Characteristics
DV
REF
DI
Z
DV
REF
DV
KA
TL4051
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
SLOS487 – JUNE 2007
full range T
A
= –40 ° C to 125 ° C (unless otherwise noted)
TL4051AQ TL4051BQ TL4051CQ
PARAMETER TEST CONDITIONS T
A
UNIT
MIN TYP MAX MIN TYP MAX MIN TYP MAX
Reference I
Z
= 100 µ A,
V
REF
25 ° C 1.212 1.212 1.212 V
voltage V
Z
= 5 V
25 ° C –1.2 1.2 –2.4 2.4 –6 6
Reference
I
Z
= 100 µ A,
voltage mV
Full
V
Z
= 5 V
–7.4 7.4 –8.6 8.6 –12.2 12.2
tolerance
(1)
range
25 ° C 36 60 36 60 36 65
Minimum
I
Z,min
µ A
Full
cathode current
70 70 75
range
25 ° C 0.3 1.1 0.3 1.1 0.3 1.1
I
Z,min
< I
Z
< 1 mA
Full
Reference
1.5 1.5 1.5
range
voltage change
mV
with cathode
25 ° C 0.6 6 0.6 6 0.6 6
current change
1 mA < I
Z
< 12 mA
Full
8 8 8
range
Reference 25 ° C –1.69 –2.8 –1.69 –2.8 –1.69 –2.8
voltage change
I
Z
= 1 mA mV/V
Full
with output
–3.5 –3.5 –3.5
range
voltage change
25 ° C 70 130 70 130 70 130
Feedback
I
FB
nA
Full
current
150 150 150
range
I
Z
= 10 mA,
25 ° C ± 20 ± 20 ± 20
V
Z
= 2.5 V
Average
I
Z
= 1 mA,
temperature
25 ° C ± 15 ± 15 ± 15
V
Z
= 2.5 V
α V
REF
coefficient of ppm/ ° C
reference
25 ° C ± 15 ± 15 ± 15
voltage
(1)
I
Z
= 100 µ A,
Full
V
Z
= 2.5 V
± 50 ± 50 ± 50
range
I
Z
= 1 mA,
f = 120 Hz,
25 ° C 0.3 0.3 0.3
I
AC
= 0.1 I
Z
,
Reverse
V
Z
= V
REF
Z
Z
dynamic Ω
I
Z
= 1 mA,
impedance
f = 120 Hz,
25 ° C 2 2 2
I
AC
= 0.1 I
Z
,
V
Z
= 10 V
I
Z
= 100 µ A,
e
N
Wideband noise V
Z
= V
REF
, 25 ° C 20 20 20 µ V
RMS
10 Hz ≤ f ≤ 10 kHz
Long-term
stability of t = 1000 h,
reverse T
A
= 25 ° C ± 0.1 ° C, 25 ° C 120 120 120 ppm
breakdown I
Z
= 100 µ A
voltage
Thermal
V
HYST
∆ T
A
= –40 ° C to 125 ° C 0.3 0.3 0.3 mV/V
hysteresis
(2)
(1) Reference voltage tolerance and average temperature coefficient change with output voltage (V
Z
). See Typical Characteristics.
(2) Thermal hysteresis is defined as V
Z,25 ° C
(after cycling to –40 ° C) – V
Z,25 ° C
(after cycling to 125 ° C).
8
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