RedLab 1208FS User's Guide
Specifications
29
Table 7. Noise performance, single-ended mode
Range
Typical Counts
LSB
rms
±10 V
2
0.30
Analog output
Table 8. Analog output specifications
Parameter Conditions Specification
Resolution
12-bits, 1 in 4096
Output range
0 – 4.096 V, 1 mV per LSB.
Number of channels
2
Software paced
250 S/s single channel typical, PC dependent
Single channel, continuous scan
10 kS/s
Throughput (Note 4)
Dual channel, continuous scan,
simultaneous update
5 kS/s
Power on and reset voltage
Initializes to 000h code
Output drive
Each D/A OUT
15 mA
Slew rate
0.8V/microsecond (µs) typ
Note 4:
Maximum throughput scanning to PC memory is machine dependent. The rates specified are for
Windows XP only. Maximum rates on operating systems that predate XP may be less and must be
determined through testing on your machine.
Table 9. Analog output accuracy, all values are (±)
Range
Accuracy
(LSB)
0-4.096 V
4.0 typ, 45.0 max
Table 10. Analog output accuracy components, all values are (±)
Range
% of FSR
Gain Error at FS (mV)
Offset (mV)
(Note 5)
Accuracy at FS
(mV)
0-4.096 V
0.1 typ, 0.9 max
4.0 typ, 36.0 max
1.0 typ, 9.0 max
4.0 typ, 45.0 max
Note 5:
Negative offsets will result in a fixed zero-scale error or “dead band.” At the maximum offset of -
9 mV, any input code of less than 0x009 will not produce a response in the output.
Digital input/output
Table 11. Digital I/O specifications
Digital type
CMOS
Number of I/O
16 (Port A0 through A7, Port B0 through B7)
Configuration
2 banks of 8
Pull up/pull-down configuration
All pins pulled up to Vs via 47K resistors (default). Positions available for pull down
to ground. Hardware selectable via zero ohm (
Ω
) resistors as a factory option.
Input high voltage
2.0 V min, 5.5 V absolute max
Input low voltage
0.8 V max, –0.5 V absolute min
Output high voltage (IOH =
-2.5 mA)
3.8 V min
Output low voltage (IOL =
2.5 mA)
0.7 V max
Power on and reset state
Input
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