REV. B
Rev. B Document Feedback
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Trademarks and registered trademarks are the property of their respective owners. (@ T = +258C, V = +5 V to +15 V unless otherwise noted)
A CC
AD558SPECIFICATIONS
1 1
Model AD558J AD558K AD558S AD558T
Min Typ Max Min Typ Max Min Typ Max Min Typ Max Units
RESOLUTION 8 8 8 8 Bits
2
RELATIVE ACCURACY
0C to +70C 1/2 1/4 1/2 1/4 LSB
55C to +125C 3/4 3/8 LSB
OUTPUT
3
Ranges 0 to +2.56 0 to +2.56 0 to +2.56 0 to +2.56 V
0 to +10 0 to +10 0 to +10 0 to +10 V
Current Source +5 +5 +5 +5 mA
Sink Internal Passive Internal Passive Internal Passive Internal Passive
4
Pull-Down to Ground Pull-Down to Ground Pull-Down to Ground Pull-Down to Ground
5
OUTPUT SETTLING TIME
0 to 2.56 Volt Range 0.8 1.5 0.8 1.5 0.8 1.5 0.8 1.5 s
4
0 to 10 Volt Range 2.0 3.0 2.0 3.0 2.0 3.0 2.0 3.0 s
6
FULL-SCALE ACCURACY
@ 25C 61.5 60.5 61.5 60.5 LSB
T to T 62.5 61 62.5 61 LSB
MIN MAX
ZERO ERROR
@ 25C 61 61/2 61 61/2 LSB
T to T 62 61 62 61 LSB
MIN MAX
7
MONOTONICITY
T to T Guaranteed Guaranteed Guaranteed Guaranteed
MIN MAX
DIGITAL INPUTS
T to T
MIN MAX
Input Current 100 100 100 100 A
Data Inputs, Voltage
Bit On-Logic 1 2.0 2.0 2.0 2.0 V
Bit On-Logic 0 0 0.8 0 0 0 V
Control Inputs, Voltage
On-Logic 1 2.0 2.0 2.0 2.0 V
On-Logic 0 0 0.8 0 0.8 0 0.8 0 0.8 V
Input Capacitance 4 4 4 4 pF
8
TIMING
t , Strobe Pulse Width 200 200 200 200 ns
W
T to T 270 270 270 270 ns
MIN MAX
t Data Hold Time 10 10 10 10 ns
DH
T to T 10 10 10 10 ns
MIN MAX
t Data Set-Up Time 200 200 200 200 ns
DS
T to T 270 270 270 270 ns
MIN MAX
POWER SUPPLY
Operating Voltage Range (V )
CC
2.56 Volt Range +4.5 +16.5 +4.5 +16.5 +4.5 +16.5 +4.5 +16.5 V
10 Volt Range +11.4 +16.5 +11.4 +16.5 +11.4 +16.5 +11.4 +16.5 V
Current (I)15 25 15 25 15 25 15 25 mA
CC
Rejection Ratio 0.03 0.03 0.03 0.03 %/%
POWER DISSIPATION, V = 5 V 75 125 75 125 75 125 75 125 mW
CC
V = 15 V 225 375 225 375 225 375 225 375 mW
CC
OPERATING TEMPERATURE RANGE 0 +70 0 +70 55 +125 55 +125 C
NOTES
1
The AD558 S & T grades are available processed and screened lo MIL-STD-883 Class B. Consult Analog Devices Military Databook for details.
2
Relative Accuracy is defined as the deviation of the code transition points from the ideal transfer point on a straight line from the offset to the full scale of the device.
See Measuring Offset Error.
3
Operation of the 0 volt to 10 volt output range requires a minimum supply voltage of +11.4 volts.
4
Passive pull-down resistance is 2 k for 2.56 volt range, 10 k for 10 volt range.
5
Settling time is specified for a positive-going full-scale step to 1/2 LSB. Negative-going steps to zero are slower, but can be improved with an external pull-down.
6
The full range output voltage for the 2.56 range is 2.55 V and is guaranteed with a +5 V supply, for the 10 V range, it is 9.960 V guaranteed with a +15 V supply.
7
A monotonic converter has a maximum differential linearity error of 1 LSB.
8
See Figure 7.
Specifications shown in boldface are tested on all production units at final electrical test.
Specifications subject to change without notice.
2
REV. B