AD578/AD579
Parameter
AD579JN
AD579KN
RESOLUTION
10 Bits
10 Bits
ANALOG INPUTS
Voltage Ranges
Bipolar
±5.0 V, ±10 V
0 V to +10 V, 0 V to +20 V
±5.0 V, ±10 V
0 V to +10 V, 0 V to +20 V
Unipolar
Input Impedance
0 V to +10 V, ±5 V
±10 V, 0 V to +20 V
5 kW (±20%)
10 kW (±20%)
5 kW (±20%)
10 kW (±20%)
DIGITAL INPUTS
Convert Command1
Clock Input
1 LSTTL Load
1 LSTTL Load
1 LSTTL Load
1 LSTTL Load
TRANSFER CHARACTERISTICS
Gain Error2, 3
±0.1% FSR, ±0.25% FSR max
±0.1% FSR, ±0.25% FSR max
±0.1% FSR, ±0.25% FSR max
±1/2 LSB max
±0.1% FSR, ±0.25% FSR max
±0.1% FSR, ±0.25% FSR max
±0.1% FSR, ±0.25% FSR max
±1/2 LSB max
Unipolar Offset3
Bipolar Error3, 4
Linearity Error, 25∞C
TMIN to TMAX
±3/4 LSB
±3/4 LSB
DIFFERENTIAL LINEARITY ERROR
(Minimum resolution for which no
missing codes are guaranteed)
25∞C
10 Bits
10 Bits
10 Bits
10 Bits
TMIN to TMAX
POWER SUPPLY SENSITIVITY
+15 V ±10%
0.005%/%DVS max
0.005%/%DVS max
0.001%/%DVS max
0.005%/%DVS max
0.005%/%DVS max
0.001%/%DVS max
–15 V ±10%
+5 V ±10%
“Z” Versions
+12 V ±5%
–12 V ±5%
0.007%/%DVS max
0.007%/%DVS max
0.007%/%DVS max
0.007%/%DVS max
TEMPERATURE COEFFICIENTS
Gain
±25 ppm/∞C typ
±40 ppm/∞C max
±5 ppm/∞C typ
±15 ppm/∞C max
±8 ppm/∞C typ
±20 ppm/∞C max
±2 ppm/∞C typ
±25 ppm/∞C typ
±40 ppm/∞C max
±5 ppm/∞C typ
±15 ppm/∞C max
±8 ppm/∞C typ
±20 ppm/∞C max
±2 ppm/∞C typ
Unipolar Offset
Bipolar Offset
Differential Linearity
CONVERSION TIME5, 6 (max)
TMIN to TMAX
2.2 ms
2.4 ms
1.8 ms
2.0 ms
PARALLEL OUTPUTS
Unipolar Code
Bipolar Code
Binary
Binary
Offset Binary/Twos Complement
2 LSTTL Loads
Offset Binary/Twos Complement
2 LSTTL Loads
Output Drive
SERIAL OUTPUTS (NRZ FORMAT)
Unipolar Code
Binary/Complementary Binary
Offset Binary/Comp. Offset Binary
2 LSTTL Loads
Binary/Complementary Binary
Offset Binary/Comp. Offset Binary
2 LSTTL Loads
Bipolar Code
Output Drive
END OF CONVERSION (EOC)
Output Drive
Logic 1 During Conversion
8 LSTTL Loads
Logic 1 During Conversion
8 LSTTL Loads
INTERNAL CLOCK7
Output Drive
2 LSTTL Loads
2 LSTTL Loads
INTERNAL REFERENCE
Voltage
Temperature Coefficient
External Current
10.000 ±100 mV typ
±15 ppm/∞C
±1 mA max
10.000 ±100 mV typ
±15 ppm/∞C
±1 mA max
POWER SUPPLY REQUIREMENTS
Range for Rated Accuracy
Z Models8
4.75 to 5.25 and ±13.5 to ±16.5
4.75 to 5.25 and ±11.4 to ±16.5
5 mA typ, 8 mA max
22 mA typ, 35 mA max
100 mA typ, 150 mA max
775 mW typ
4.75 to 5.25 and ±13.5 to ±16.5
4.75 to 5.25 and ±11.4 to ±16.5
5 mA typ, 8 mA max
22 mA typ, 35 mA max
100 mA typ, 150 mA max
775 mW typ
Supply Current
+15 V
–15 V
+5 V
Power Dissipation
TEMPERATURE RANGE
Operating
Storage
0∞C to +70∞C
–65∞C to +150∞C
0∞C to +70∞C
–65∞C to +150∞C
NOTES
1Positive pulse 200 ns wide (min) leading edge (0 to 1) resets outputs. Trailing edge initiates conversion.
2With 50 W, 1% fixed resistor in place of gain adjust potentiometer.
3Adjustable to zero.
4With 50 W, 1% resistor between Ref Out and Bipolar Offset (Pins 24 and 26).
5Conversion time is defined as the time between the falling edge of convert start and the falling edge of the EOC.
(Continued on page 5)
REV. B
–4–
ADI [ ADI ]
