6
Advanced Linear Devices
ALD500RAU/ALD500RA/ALD500R
DC ELECTRICAL CHARACTERISTICS
TA = 25°C V supply = +5.0V unless otherwise specified; CAZ = CREF = 0.47f, RREF = 100K (1% metal film)
Parameter
Symbol
500RAU-10
500RAU-20
500RAU-50
Unit
Test Conditions
500RA-10
500RA-20
500RA-50
500R-50
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max
Voltage Reference
VR
0.998
1.000
1.002
0.997
1.000
1.003
0.995
1.000
1.005
V
Supply Voltage
VRSR
95
dB
Rejection Ratio
Temperature
VRTC
3
10
7
20
15
50
ppm/C
°
Coefficient
Long Term Drift
V
REF /
-0.08
ppm/
Note 7
t
1000hrs
Warm Up Time
10
min.
Note 7
Positive Supply
V+
4.5
5.5
4.5
5.5
4.5
5.5
V
Operating Voltage Range
Negative Supply
V-
-5.5
-4.5
-5.5
-4.5
-5.5
-4.5
V
Operating Voltage Range
Power Down Supply
IPD
25
A
Note 7
Current
NOTES:
1. Integrate time
≥ 66 msec., Auto Zero time ≥ 66 msec., VINT = 4V, VIN = 2.0V Full Scale
Resolution = VINT /integrate time/clock period
2. End point linearity at
±1/4, ±1/2, ±3/4 Full Scale after Full Scale adjustment.
3. Rollover Error also depends on CINT, CREF, CAZ characteristics.
4. Contact factory for other power supply operating voltage ranges, including Vsupply =
±3V or Vsupply = ±2.5V.
5. Recommended selection of clock periods of one of the following:
t clk = 0.27
sec, 0.54sec, or 1.09sec
which corresponds to clock frequencies of 3.6864 MHz, 1.8432 MHz, 0.9216 MHz respectively.
6. RREF is 100K 1% metal film, 50 ppm/C.
7. Sample tested parameter.
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