MP7226
ELECTRICAL CHARACTERISTICS
Single & Dual ꢀ5 V Supply Operation (V = +5 V ꢀ5%, V = 0 V to –5 V ꢀ10%, V = +1.25 V,
DD
SS
REF
AGND = 0 V, DGND = 0 V, R = 2kΩ, C = 100pF unless otherwise noted)
L
L
25°C
Typ
Tmin to Tmax
Parameter
Symbol
Min
Max
Min
Max
Units
Test Conditions/Comments
STATIC PERFORMANCE
Resolution (All Grades)
N
8
8
Bits
Integral Non-Linearity
INL
LSB
(Relative Accuracy)
K
L
2
1
2
1
End Point Linearity Spec
Differential Non-Linearity
DNL
LSB
All grades monotonic over full
temperature range.
K
L
ꢀ1
ꢀ1
ꢀ1
ꢀ1
2
Total Unadjusted Error
ꢀ4
LSB
LSB
V
V
= 5 V ꢀ5%, V
= 1.25 V
DD
REF
3
Full Scale Error
= +1.25 V
REF
K
L
ꢀ4
ꢀ2
ꢀ4
ꢀ2
Zero Code Error
ꢀ20
mV
Output Load Resistance
DYNAMIC PERFORMANCE
2
2
kΩ
V
V
= +10 V
OUT
4
Voltage Output Slew Rate
Voltage Output Settling Time
4
V/µs
µs
4
= +1.25 V; Settling Time to
REF
ꢀ1/2 LSB
Digital Feedthrough
25
25
nVs
nVs
Code transition all 0s to all 1s
V
REF
= 0 V, WR = V
DD
5
Digital Crosstalk
Code transition all 0s to all 1s
V
= +1.25 V, WR = 0 V
REF
OUT
REFERENCE INPUT
Reference Input Range
Reference Input Resistance
Reference Input Capacitance
1
2
1.6
1
2
1.6
V
kΩ
pF
V
must be < V by 3.2V
DD
R
IN
4
500
–70
Occurs when all DACs are loaded
with all 1s
AC Feedthrough
dB
V = 10 kHz, 1/2 V p-p sinewave
REF
DIGITAL INPUTS
Input High Voltage
Input Low Voltage
Input Leakage Current
V
V
2.4
2.4
V
V
INH
0.8
ꢀ1
8
0.8
INL
I
ꢀ1 µA
pF
V = 0 V or V
IN DD
LKG
4
Input Capacitance
8
Input Coding
Binary
Rev. 2.00
5
EXAR [ EXAR CORPORATION ]
