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Chapter 4

Specifications

All specifications are subject to change without notice.

Typical for 25 °C unless otherwise specified.

Specifications in italic text are guaranteed by design.

Analog output

Table 1. Analog input specifications

D/A converter

AD7548

Resolution

12-bits

Number of channels

2 voltage or current output

Voltage ranges (Bipolar output)

±5 V, ±10 V and user range (determined by value of external reference between

-10 V and +10 V) jumper selectable

Voltage ranges (Unipolar output)

0 to 5 V, 0 to 10 V and user range (determined by the value of the external

reference between -10 V and +10 V) jumper selectable

Current ranges (Current output)

4 to 20 mA (using on-board or external -5 V reference)

D/A pacing

Software paced

Offset error

Adjustable to zero

Gain error

Adjustable to zero

Differential nonlinearity

±0.5 LSB max

Integral nonlinearity

±0.5 LSB max

Relative accuracy

±0.5 LSB (0.01%) max

Monotonicity

Guaranteed monotonic to 12 bits over temperature

Gain drift (internal referece)

±25 ppm/°C max

Offset drift

±3 ppm/°C max

Slew rate

0.3 V/µs typical

Current drive (voltage outputs)

±5 mA min

Voltage compliance (current out)

8 to 36 V

Output resistance (OP-07)

0.1 ohm max

Output short-circuit duration

40 mA min continuous

Miscellaneous

 Double buffered output latches

 7 kOhm min reference input resistance

Power consumption

Table 2. Power consumption specifications

Parameter

Conditions

Specification

Supply current

+5 V supply

135 mA typ, 300 mA max

+12 V supply

15 mA typ, 25 mA max

-12 V supply

25 mA typ, 35 mA max

1 2 ... 10 11 12 13 14 15 16 17 18

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