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ZRT025GA1TA

P1-P3P4-P5
1
SEMICONDUCTORS
DESCRIPTION
TheZRT025isamonolithicintegratedcircuitproviding
a precise stable reference voltage of 2.5V at 500␮A.
The circuit features a knee current of 150␮A and
operation over a wide range of temperatures and
currents.
The ZRT025 is available for surface mount
applications.Thisproductoffersatrimfacilitywhereby
the output voltage can be adjusted as shown in Fig.1.
This facility is used when compensating for system
errors or setting the reference output to a particular
value.When the trim facility isnotused, the pin should
be left open circuit.
FEATURES
•
Trimmable output
•
Excellent temperature stability
• Low output noise figure
•
Available in two temperature ranges
•
1 and 2% initial voltage tolerance versions available
•
No external stabilizing capacitor required in most cases
•
Low slope resistance
•
No derating required at low temperatures
•
SOT223 package
A grade -55 to 125°C
C grade -40 to 85°C
ZRT025
ISSUE 4 - DECEMBER 2003
2.5V LOW POWERPRECISION REFERENCE SOURCE
DEVICE TOL% OPERATING TEMP °C PARTMARK REEL
SIZE
TAPE
WIDTH
QUANTITY
PER REEL
ZRT025GC2TA 2 -40 to 85 ZRT025C2 7” 12mm 1,000 units
ZRT025GC1TA 1 -40 to 85 ZRT025C1 7” 12mm 1,000 units
ZRT025GA1TA 1 -55 to 125 ZRT025A1 7” 12mm 1,000 units
ORDERING INFORMATION
SOT223
Package suffix G
Top view (pin 4 floating or
connected to pin 2)
S
O
T
2
2
3
ZRT025
SEMICONDUCTORS
ISSUE 4 - DECEMBER 2003
2
SYMBOL PARAMETER INITIAL
VOLTAGE
TOLERANCE %
GRADE A
-55 TO 125°C
GRADE C
-40 TO 85°C
UNIT
∆V
R
Output voltage change over
relevant temperature
range(See note (a))
1 & 2 6.8 22.5 2.7 8.8 mV
T
C
V
R
Output voltage temperature
coefficient (See note (b))
1 & 2 15.0 50.0 15.0 50.0 ppm/°C
TEMPERATURE DEPENDENT ELECTRICAL CHARACTERISTICS
PARAMETER SYMBOL LIMIT UNIT
Reverse current
(1)
75 mA
Operating temperature:
A grade
C grade
T
OMP
-55 to 125
-40 to 85
°C
°C
Storage temperature T
STG
-55 to 150 °C
ABSOLUTE MAXIMUM RATINGS
(1)
Above 72°C this figure should be linearly derated to 25mA at 125°C
PACKAGE VALUE UNIT
SOT223 2 W
POWER DISSIPATION (at T
amb
= 25°C unless otherwise stated)
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
V
R
Output voltage
1% tolerance (A1,C1)
2% tolerance (C2)
I
R
=500␮A
2.475
2.450
2.500
2.500
2.525
2.550
V
V
⌬V
TRIM
Output voltage adjustment range R
T
=100k⍀⫾5%
T
C
⌬V
TRIM
Change in T
C
V
R
with output adjustment 2.5 ppm/°C/%
I
R
Operating current range 0.15 75 mA
t
on
t
off
Turn-on timeTurn-off time
R
L
=1k⍀
10
0.3
␮s
e
np-p
Output voltage noise (over the range 0.1
to 10Hz)
Peak to peak
measurement
50 ␮V
R
S
Slope resistance I
R
= 0.5mA to
5mA
(See note (c))
0.85 2.0 ⍀
ELECTRICAL CHARACTERISTICS (at T
amb
= 25°C unless otherwise stated)
NOTES:
(a) Output change with temperature
The absolute maximum difference between the
maximum output voltage and the minimum output
voltage over the specified temperature range
⌬
V
R
=V
max
-V
min
(b) Output temperature coefficient (T
C
V
R
)
The ratio of the output change with temperature to the
specified temperature range expressed in ppm/°C
TV
Vx
VxT
ppm C
CR
R
R
=°
∆
∆
10
6
⌬T= Full temperature range
(c) Slope resistance (RS)
The slope resistance is defined as :
RS
changeinV
specificcurrentrange
R
=
⌬
I=5-0.5=4.5mA (typically)
(d) Line regulation
The ratio of change in output voltage to the change in
input voltage producing it.
Rx
VxR
V
S
RSOURCE
100
%/
ZRT025
SEMICONDUCTORS
ISSUE 4 - DECEMBER 2003
3
TYPICAL CHARACTERISTICS
P1-P3P4-P5

ZRT025GA1TA

Mfr. #:
Buy ZRT025GA1TA
Manufacturer:
Description:
IC VREF SHUNT 2.5V SOT223
Lifecycle:
New from this manufacturer.
Delivery:
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