MP7645B
ELECTRICAL CHARACTERISTICS
(V = + 15 V, V
= +10 V unless otherwise noted)
DD
REF
25°C
Typ
Tmin to Tmax
Parameter
Symbol
Min
Max
Min
Max
Units
Test Conditions/Comments
1
STATIC PERFORMANCE
FSR = Full Scale Range
Resolution (All Grades)
N
12
12
Bits
Integral Non-Linearity
INL
LSB
End Point Linearity
(Relative Accuracy)
K, B
L, C
+1
+1/2
+1
+1/2
Differential Non-Linearity
DNL
GE
LSB
K, B
L, C
+1
+1/2
+1
+1/2
Gain Error
K, B
% FSR
Using Internal R
FB
+0.2
+0.2
+0.2
+0.2
L, C
2
Gain Temperature Coefficient
TC
+2 ppm/°C
∆Gain/∆Temperature
GE
Monotonicity
K, L
Guaranteed
Guaranteed
12-Bit Monotonic Tmin to Tmax
Power Supply Rejection Ratio
PSRR
+50
+10
+50 ppm/%
|∆Gain/∆V | ∆V = + 5%
DD DD
Output Leakage Current
K, L, B, C
I
nA
OUT
+200
2
DYNAMIC PERFORMANCE
Current Settling Time
t
F
1
5
50
2 typ µs
Full Scale Change to 1/2 LSB
V = 10kHz, 20 Vp-p, sinewave
REF
From digital input change to
90% of final value
S
AC Feedthrough at I
Propagation Delay
5
mV p-p
ns
OUT
T
t
PD
REFERENCE INPUT
Input Resistance
R
V
7
3
11
25
7
25 kΩ
IN
3
DIGITAL INPUTS
Logical “1” Voltage
Logical “0” Voltage
Input Leakage Current
3.0
V
IH
V
IL
LKG
+0.8
+1
+0.8
V
I
+10 µA
2
Input Capacitance
Data
Control
C
C
5
20
5
pF
DB0-DB11
WR, CS
IN
IN
20 pF
ANALOG OUTPUTS
2
Output Capacitance
C
C
50
100
pF
pF
DAC Inputs all 0’s
DAC Inputs all 1’s
OUT
OUT
Rev. 2.00
3
EXAR [ EXAR CORPORATION ]
