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2.5V Precision Reference / Amplifier
A/AS535
ASTEC Semiconductor
27
Electrical Characteristics
Electrical characteristics are guaranteed over the full junction temperature range (0-105
°C). Ambient temperature must be derated
based upon power dissipation and package thermal characteristics. Unless otherwise stated, test conditions are: VOUT= VREF, VCC=5V
and IOUT= 1 mA.
Parameter
Symbol
Test Condition
Min
Typ
Max
Min
Typ
Max Units
Supply Voltage
VCC
4
15
4
15
V
Supply Current
ICC
0.5
1
0. 5
1
mA
Reference Voltage
VREF
TJ = 25
° C
2.475
2.500 2.525
2.488
2.500
2.513
V
Line Regulation
∆VOUT
VCC =4 to 15 V
-1
-10
-1
-10
mV
Load Regulation
∆VOUT
IOUT = 1 to 100 mA
1
50
1
50
mV
Temperature Deviation
∆VOUT
0 < TJ < 105
° C
3
10
3
8
mV
Reference Input Current
IREF
0.1
0.4
0.1
0.4
µA
Amplifier open loop gain
Av
70
80
70
80
dB
Amplifier Unity gain frequency
F1
CLOAD < 1nF
1
2
1
2
MhZ
Output Saturation Voltage
VSAT
IOUT =100mA
0.4
0.4
V
Off State Leakage
ILEAK
VREF = 0 V, VOUT = 15 V
0.04
500
0.04
500
nA
*Temperature deviation is defined as the maximum deviation of the reference over the given temperature range and does not imply an
incremental deviation at any given temperature.
Typical Performance Curves
• TC in mV/°C =
∆V
REF
∆T
A
• TC in %/°C =
∆V
REF
∆T
A
VREF at 25°C
() x 100
• TC in ppm/°C =
∆V
REF
∆T
A
VREF at 25°C
() x 106
*Calculating Average Temperature Coefficient (TC)
(mV)
Temperature (°C)
15
-10
0
3045
6075
90
105
-5
0.2
2000
0
0
0
∆VREF
∆T
0.021 mV/°C
0.008 %/°C
8.0 ppm/°C
A535 (1.0 %)
AS535 (0.5 %)
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