SG1503/SG2503/SG3503
PRECISION 2.5-VOLT REFERENCE
DESCRIPTION
This monolithic integrated circuit is a fully self-contained precision voltage
reference generator, internally trimmed for ±1% accuracy. Requiring less
than 2mA in quiescent current, this device can deliver in excess of 10mA
with total load- and line-induced tolerances of less than 0.5%. In additon
to voltage accuracy, internal trimming achieves a temperature coefficient
of output voltage of typically 10 ppm/°C. As a result, these references are
excellent choices for application to critical instrumentation and D-to-A
converter systems.
The SG1503 is specified for operation over the full military ambient
temperature range of -55°C to 125°C , while the SG2503 is designed for
-25°C to 85°C and the SG3503 for commercial applications of 0°C to 70°C.
FUNCTIONAL DIAGRAM
FEATURES
••
• Output voltage trimmed to ±1%
••
••
• Input voltage range of 4.5 to 40V
••
••
• Temperature coefficent of 10ppm/°C
••
••
• Quiescent current typically 1.5mA
••
••
• Output current in excess of 10mA
••
••
• Interchangeable with MC1503 and AD580
••
HIGH RELIABILITY FEATURES - SG1503
♦♦
♦ Available to MIL-STD-883 and DESC SMD
♦♦
♦♦
♦ Radiation data available
♦♦
♦♦
♦ LMI level "S" processing available
♦♦
4/90 Rev 1.2 9/96 LINFINITY Microelectronics Inc.
Copyright 1996 11861 Western Avenue
1 (714) 898-8121
∞ ∞
∞ Garden Grove, CA 92841
∞ ∞
∞∞
∞ FAX: (714) 893-2570
∞∞
SG1503/SG2503/SG3503
ABSOLUTE MAXIMUM RATINGS (Note 1)
Input Voltage....................................................................... 40V
Storage Temperature Range .............................-65°C to 150°C
Note 1. Exceeding these ratings could cause damage to the device.
THERMAL DATA
T Package:
Thermal ResistanceThermal Resistance-
Y Package:
Thermal ResistanceThermal Resistance-
M Package:
Thermal ResistanceThermal Resistance-
DM Package:
Thermal ResistanceThermal Resistance-
Junction to Case, θ
Junction to Ambient, θ
Junction to Case, θ
Junction to Ambient, θ
Junction to Case, θ
Junction to Ambient, θ
Junction to Case, θ
Junction to Ambient, θ
JC
JC
JC
JC
................... 15°C/W
............ 120°C/W
JA
.................. 50°C/W
........... 130°C/W
JA
................... 60°C/W
............. 95°C/W
JA
.................. 55°C/W
........... 165°C/W
JA
RECOMMENDED OPERATING CONDITIONS (Note 2)
Input Voltage .......................................................... 4.5V to 40V Operating Ambient Temperature Range
Note 2. Range over which the device is functional.
Operating Junction Temperature
Hermetic (T, Y - Package)............................................. 150°C
Plastic (M, DM - Package) ............................................ 150°C
Lead Temperature (Soldering, 10 Seconds) .................. 300°C
Note A. Junction Temperature Calculation: TJ = TA + (PD x θJA).
Note B. The above numbers for
θJC are maximums for the limiting
thermal resistance of the package in a standard mounting configuration. The θ
guidelines for the thermal performance of the device/pc-
numbers are meant to be
JA
board system. All of the above assume no ambient
airflow.
SG1503 ............................................................-55°C to 125°C
SG2503 ............................................................. -25°C to 85°C
SG3503 ................................................................ 0°C to 70°C
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, these specifications apply over the operating ambient temperatures for SG1503 with -55°C ≤ TA ≤ 125°C, SG2503/SG3503
with 0°C ≤ TA ≤ 70°C, V
to the ambient temperature.)
Output Voltage
Input Voltage
Line Regulation
Load Regulation
Temperature Regulation
Quiescent Current
Short Circuit Current
Ripple Rejection
Output Noise
Voltage Stability
= 15V, and IL = 0mA. Low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal
IN
Parameter
Test Conditions
TA = 25°C
= 25°C
T
A
V
= 5V to 15V
IN
V
= 15V to 40V
IN
= 10mA
∆I
L
∆I
= 10mA, V
L
(SG1503 only)
= 30V
IN
(SG2503/3503 only)
V
= 40V
IN
= 25°C
T
A
f = 120Hz, T
BW = 10KHz, T
= 25°C
A
= 25°C
A
SG1503/2503
Min. Typ. Max.
2.485
4.7
4.5
2.500
2.515
40
40
1
3
3
4
20
15
2.5
2.0
1.5
15
20
30
76
100
250
3
5
5
8
5
SG3503
Min. Typ. Max.
2.500
2.475
4.7
4.5
1
3
3
4
5
1.5
20
15
76
100
250
2.525
40
40
3
10
10
15
10
2.0
30
Units
V
V
V
mV
mV
mV
mV
mV
mV
mA
mA
dB
µV rms
µV/Khr
4/90 Rev 1.2 9/96 LINFINITY Microelectronics Inc.
Copyright 1996 11861 Western Avenue
2 (714) 898-8121
∞ ∞
∞ Garden Grove, CA 92841
∞ ∞
∞∞
∞ FAX: (714) 893-2570
∞∞