–2–
REV. 0
AD7839–SPECIFICATIONS
(V
CC
= +5 V ⴞ 5%; V
DD
= +15 V ⴞ 5%; V
SS
= –15 V ⴞ 5%; GND = DUTGND = 0 V;
R
L
= 5 k⍀ and C
L
= 50 pF to GND, T
A
1
= T
MIN
to T
MAX
, unless otherwise noted.)
Parameter A Version Units Test Conditions/Comments
ACCURACY
Resolution 13 Bits
Relative Accuracy ±2 LSB max Typically ±0.5 LSB
Differential Nonlinearity ±0.9 LSB max Guaranteed Monotonic Over Temperature
Zero-Scale Error ±4LSB maxV
REF
(+) = +5 V, V
REF
(–) = –5 V. Typically within ±1 LSB
Full-Scale Error ±4LSB maxV
REF
(+) = +5 V, V
REF
(–) = –5 V. Typically within ±1 LSB
Gain Error ±1 LSB typ V
REF
(+) = +5 V, V
REF
(–) = –5 V
Gain Temperature Coefficient
2
0.5 ppm FSR/°C typ
10 ppm FSR/°C max
DC Crosstalk
2
120 µV max See Terminology. Typically 75 µV
REFERENCE INPUTS
2
DC Input Impedance 100 MΩ typ
Input Current ±1 µA max Per Input. Typically ±0.03 µA
V
REF
(+) Range 0/+5 V min/max
V
REF
(–) Range –5/0 V min/max
[V
REF
(+) – V
REF
(–)] +2/+10 V min/max For Specified Performance. Can Go as Low as 0 V, but
Performance Not Guaranteed
DUTGND INPUTS
2
DC Input Impedance 60 kΩ typ
Max Input Current ±0.3 mA typ Per Input
Input Range –2/+2 V min/max
OUTPUT CHARACTERISTICS
2
Output Voltage Swing ± 10 V min 2 × (V
REF
(–) + [V
REF
(+) – V
REF
(–)] × D) – V
DUTGND
Short Circuit Current 15 mA max
Resistive Load 5 kΩ min To 0 V
Capacitive Load 50 pF max To 0 V
DC Output Impedance 0.5 Ω max
DIGITAL INPUTS
2
V
INH
, Input High Voltage 2.4 V min
V
INL
, Input Low Voltage 0.8 V max
I
INH
, Input Current Total for All Pins
@ +25°C1µA max
T
MIN
to T
MAX
±10 µA max
C
IN
, Input Capacitance 10 pF max
POWER REQUIREMENTS
3
V
CC
+4.75/+5.25 V min/max For Specified Performance
V
DD
+14.25/+15.75 V min/max For Specified Performance
V
SS
–14.25/–15.75 V min/max For Specified Performance
Power Supply Sensitivity
2
␣␣ ∆Full Scale/∆V
DD
90 dB typ
␣␣ ∆Full Scale/∆V
SS
90 dB typ
I
CC
0.5 mA max V
INH
= V
CC
, V
INL
= GND. Dynamic Current
I
DD
10 mA max Outputs Unloaded. Typically 8 mA
I
SS
10 mA max Outputs Unloaded. Typically 8 mA
NOTES
1
Temperature range for A Version: –40°C to +85°C
2
Guaranteed by characterization. Not production tested.
3
The AD7839 is functional with power supplies of ± 12 V ± 10% with reduced output range. At 12 V it is recommended to restrict reference range to ± 4 V due to
output amplifier headroom limitations
Specifications subject to change without notice.
