Datasheet

DAC8420
Rev. B | Page 3 of 24
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
1
@ V
DD
= +5.0 V ± 5%, V
SS
= 0 V, V
VREFHI
= +2.5 V, V
VREFLD
= 0 V, and V
SS
= −5.0 V ± 5%, V
VREFLO
= −2.5 V, −40°C ≤ T
A
≤ +85°C unless
otherwise noted.
2
Table 1.
Parameter Symbol Condition Min Typ Max Unit
STATIC ACCURACY
Integral Linearity E Grade INL ±¼ ±1 LSB
Integral Linearity E Grade INL V
SS
= 0 V
3
±½ ±3 LSB
Integral Linearity F Grade INL ±¾ ±2 LSB
Integral Linearity F Grade INL V
SS
= 0 V
3
±1 ±4 LSB
Differential Linearity DNL Monotonic over temperature ±¼ ±1 LSB
Zero-Scale Error ZSE R
L
= 2 kΩ, V
SS
= −5 V ±4 LSB
Full-Scale Error FSE R
L
= 2 kΩ, V
SS
= −5 V ±4 LSB
Zero-Scale Error ZSE R
L
= 2 kΩ, V
SS
= 0 V
3
±8 LSB
Full-Scale Error FSE R
L
= 2 kΩ, V
SS
= 0 V
3
±8 LSB
Zero-Scale Temperature Coefficient TC
ZSE
R
L
= 2 kΩ, V
SS
= −5 V
4
±10 ppm/°C
Full-Scale Temperature Coefficient TC
FSE
R
L
= 2 kΩ, V
SS
= −5 V
4
±10 ppm/°C
MATCHING PERFORMANCE
Linearity Matching ±1 LSB
REFERENCE
Positive Reference Input Range
5
V
VREFHI
V
VREFLO
+ 2.5 V
DD
− 2.5 V
Negative Reference Input Range
5
V
VREFLO
V
SS
V
VREFHI
− 2.5 V
Negative Reference Input Range V
VREFLO
V
SS
= 0 V
5
0 V
VREFHI
− 2.5 V
Reference High Input Current I
VREFHI
Code 0x000, Code 0x555 −0.75 ±0.25 +0.75 mA
Reference Low Input Current I
VREFLO
Code 0x000, Code 0x555, V
SS
= −5 V −1.0 −0.6 mA
AMPLIFIER CHARACTERISTICS
Output Current I
OUT
V
SS
= −5 V −1.25 +1.25 mA
Settling Time t
S
To 0.01%
6
8 μs
Slew Rate SR 10% to 90%
6
1.5 V/μs
LOGIC CHARACTERISTICS
Logic Input High Voltage V
INH
2.4 V
Logic Input Low Voltage V
INL
0.8 V
Logic Input Current I
IN
10 μA
Input Capacitance
4
C
IN
13 pF
LOGIC TIMING CHARACTERISTICS
4, 7
Data Setup Time t
DS
25 ns
Data Hold t
DH
55 ns
Clock Pulse Width High t
CH
90 ns
Clock Pulse Width Low t
CL
120 ns
Select Time t
CSS
90 ns
Deselect Delay t
CSH
5 ns
Load Disable Time t
LD1
130 ns
Load Delay t
LD2
35 ns
Load Pulse Width t
LDW
80 ns
Clear Pulse Width t
CLRW
150 ns