(T
MIN
to T
MAX
, V
CC
= +12 V 5%, V
EE
= –12 V 5%, V
DD
= +5 V 10%, unless otherwise noted)
AD679
REV. D
–3–
DC SPECIFICATIONS
AD679J/A/S AD679K/B/T
Parameter Min Typ Max Min Typ Max Unit
TEMPERATURE RANGE
J, K Grades 0 70 0 70 °C
A, B Grades –40 +85 –40 +85 °C
S, T Grades –55 +125 –55 +125 °C
ACCURACY
Resolution 14 14 Bits
Integral Nonlinearity (INL) 2 1 2.5 LSB
Differential Nonlinearity (DNL) 14 14 Bits
Unipolar Zero Error
1
(@ 25°C) 0.08 0.05 0.07 % FSR
2
Bipolar Zero Error
1
(@ 25°C) 0.08 0.05 0.07 % FSR
Gain Error
1, 3
(@ 25°C) 0.12 0.09 0.11 % FSR
Temperature Drift
Unipolar Zero
4
J, K Grades 0.04 0.04 0.05 % FSR
A, B Grades 0.05 0.05 0.07 % FSR
S, T Grades 0.09 0.09 0.10 % FSR
Bipolar Zero
4
J, K Grades 0.02 0.02 0.04 % FSR
A, B Grades 0.04 0.04 0.05 % FSR
S, T Grades 0.08 0.08 0.09 % FSR
Gain
4
J, K Grades 0.09 0.09 0.11 % FSR
A, B Grades 0.10 0.10 0.16 % FSR
S, T Grades 0.20 0.20 0.25 % FSR
Gain
5
J, K Grades 0.04 0.04 0.05 % FSR
A, B Grades 0.05 0.05 0.07 % FSR
S, T Grades 0.09 0.09 0.10 % FSR
ANALOG INPUT
Input Ranges
Unipolar Mode 0 +10 0 +10 V
Bipolar Mode –5 +5 –5 +5 V
Input Resistance 10 10 MΩ
Input Capacitance 10 10 pF
Input Settling Time 1.5 1.5 µs
Aperture Delay 10 10 ns
Aperture Jitter 150 150 ps
INTERNAL VOLTAGE REFERENCE
Output Voltage
6
4.98 5.02 4.98 5.02 V
External Load
Unipolar Mode 1.5 1.5 mA
Bipolar Mode 0.5 0.5 mA
POWER SUPPLIES
Power Supply Rejection
V
CC
= +12 V ± 5% 6 6 LSB
V
EE
= –12 V ± 5% 6 6 LSB
V
DD
= +5 V ± 10% 6 6 LSB
Operating Current
I
CC
18 20 18 20 mA
I
EE
25 34 25 34 mA
I
DD
8 12 8 12 mA
Power Consumption 560 745 560 745 m
W
NOTES
1
Adjustable to zero. See Figures 5 and 6.
2
% FSR = percent of full-scale range.
3
Includes internal voltage reference error.
4
Includes internal voltage reference drift.
5
Excludes internal voltage reference drift.
6
With maximum external load applied.
Specifications shown in boldface are tested on all devices at final electrical test with worst case supply voltages at T
MIN
, 25°C and T
MAX
. Results from those tests are used to
calculate outgoing quality levels. All min and max specifications are guaranteed, although only those shown in boldface are tested.
Specifications subject to change without notice.