Datasheet

3
®
DAC7724, 7725
SPECIFICATION (SINGLE SUPPLY)
At T
A
= –40°C to +85°C, V
CC
= +15V, V
DD
= +5V, V
SS
= GND, V
REFH
= +10V, V
REFL
= 0V, unless otherwise noted.
DAC7724N, U DAC7724NB, UB
DAC7725N, U DAC7725NB, UB
PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
ACCURACY
Linearity Error
(1)
±2 ±1 LSB
(2)
Linearity Matching
(3)
±2 ±1 LSB
Differential Linearity Error ±1 ±1 LSB
Monotonicity T
MIN
to T
MAX
12 ✻ Bits
Zero-Scale Error Code = 004
H
±4 ✻ LSB
Zero-Scale Drift 2 ✻ ppm/°C
Zero-Scale Matching
(3)
±4 ±2 LSB
Full-Scale Error Code = FFF
H
±4 ✻ LSB
Full-Scale Matching
(3)
±4 ±2 LSB
Power Supply Sensitivity At Full Scale 20 ✻ ppm/V
ANALOG OUTPUT
Voltage Output
(4)
V
REFL
V
REFH
✻✻V
Output Current ±5 ✻ mA
Load Capacitance No Oscillation 500 ✻ pF
Short-Circuit Current ±20 ✻ mA
Short-Circuit Duration To V
CC
or GND Indefinite ✻
REFERENCE INPUT
V
REFH
Input Range V
REFL
+1.25 +10 ✻✻V
V
REFL
Input Range 0 V
REFH
– 1.25 ✻✻V
Ref High Input Current –0.3 1.5 ✻✻mA
Ref Low Input Current –2.0 0 ✻✻mA
DYNAMIC PERFORMANCE
Settling Time
(5)
To ±0.012%, 10V Output Step 8 10 ✻✻ µs
Channel-to-Channel Crosstalk 0.25 ✻ LSB
Digital Feedthrough 2 ✻ nV-s
Output Noise Voltage f = 10kHz 65 ✻ nV/√Hz
DIGITAL INPUT/OUTPUT
Logic Family TTL-Compatible CMOS ✻
Logic Levels
V
IH
I
IH
≤ ±10µA 2.4 V
DD
+0.3 ✻✻V
V
IL
I
IL
≤ ±10µA –0.3 0.8 ✻✻V
V
OH
I
OH
= –0.8mA 3.6 V
DD
✻✻V
V
OL
I
OL
= 1.6mA 0.0 0.4 ✻✻V
Data Format Straight Binary ✻
POWER SUPPLY REQUIREMENTS
V
DD
+4.75 +5.25 ✻✻V
V
CC
14.25 15.75 ✻✻V
I
DD
50 ✻✻ µA
I
CC
3.0 ✻✻ mA
Power Dissipation 45 ✻ mW
TEMPERATURE RANGE
Specified Performance –40 +85 ✻✻°C
NOTES: (1) If V
SS
= 0V, specification applies at code 004
H
and above. (2) LSB means Least Significant Bit, when V
REFH
equals +10V and V
REFL
equals 0V, then
one LSB equals 2.44mV. (3) All DAC outputs will match within the specified error band. (4) Ideal output voltage, does not take into account zero or full-scale error.
(5) Full-scale positive 10V step and negative step from code FFF
H
to 004
H
.