dac124s085eb National Semiconductor Corporation, dac124s085eb Datasheet - Page 6

no-image

dac124s085eb

Manufacturer Part Number
dac124s085eb
Description
12-bit Micro Power Quad Digital-to-analog Converter With Rail-to-rail Output
Manufacturer
National Semiconductor Corporation
Datasheet
www.national.com
f
t
SR
t
1/f
t
t
t
t
t
t
t
SCLK
s
WU
CH
CL
SS
DS
DH
CFSR
SYNC
Symbol
A.C. and Timing Characteristics
Values shown in this table are design targets and are subject to change before product release.
The following specifications apply for V
48 to 4047. Boldface limits apply for T
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed
specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test
conditions. Operation of the device beyond the maximum Operating Ratings is not recommended.
Note 2: All voltages are measured with respect to GND = 0V, unless otherwise specified.
Note 3: When the input voltage at any pin exceeds 5.5V or is less than GND, the current at that pin should be limited to 10 mA. The 20 mA maximum package
input current rating limits the number of pins that can safely exceed the power supplies with an input current of 10 mA to two.
Note 4: The absolute maximum junction temperature (T
junction-to-ambient thermal resistance (θ
for maximum power dissipation will be reached only when the device is operated in a severe fault condition (e.g., when input or output pins are driven beyond
the operating ratings, or the power supply polarity is reversed).
Note 5: Human body model is 100 pF capacitor discharged through a 1.5 kΩ resistor. Machine model is 220 pF discharged through ZERO Ohms.
Note 6: Reflow temperature profiles are different for lead-free packages.
Note 7: The inputs are protected as shown below. Input voltage magnitudes up to 5.5V, regardless of V
example, if V
Note 8: To guarantee accuracy, it is required that V
SCLK
SCLK Frequency
Output Voltage Settling Time
(Note 10)
Output Slew Rate
Glitch Impulse
Digital Feedthrough
Digital Crosstalk
DAC-to-DAC Crosstalk
Multiplying Bandwidth
Total Harmonic Distortion
Wake-Up Time
SCLK Cycle Time
SCLK High time
SCLK Low Time
SYNC Set-up Time prior to SCLK
Falling Edge
Data Set-Up Time prior to SCLK
Falling Edge
Data Hold Time after SCLK Falling
Edge
SCLK fall prior to rise of SYNC
SYNC High Time
A
is 3V, the digital input pins can be driven with a 5V logic device.
Parameter
JA
), and the ambient temperature (T
A
MIN
= +2.7V to +5.5V, V
A
and V
J
max) for this device is 150°C. The maximum allowable power dissipation is dictated by T
T
A
REFIN
400h to C00h code change
R
Code change from 800h to 7FFh
V
V
input frequency = 10kHz
V
V
REFIN
REFIN
A
A
L
= 2kΩ, C
= 3V
= 5V
T
be well bypassed.
MAX
= 2.5V ± 0.1Vpp
= 2.5V ± 0.1Vpp
and all other limits are at T
L
REFIN
Conductions
A
= 200 pF
), and can be calculated using the formula P
6
= V
A
, C
L
20173204
= 200 pF to GND, f
A
A
, will not cause errors in the conversion result. For
= 25°C, unless otherwise specified.
(Note 9)
Typical
160
0.5
0.8
0.5
1.5
1.5
40
12
70
25
SCLK
6
1
1
3
7
7
4
0
6
D
MAX = (T
= 30 MHz, input code range
(Note 9)
Limits
J
max − T
8.5
3.5
3.5
30
33
10
10
10
10
3
A
) / θ
JA
J
MHz (max)
max, the
µs (max)
. The values
(Limits)
ns (min)
ns (min)
ns (min)
ns (min)
ns (min)
ns (min)
ns (min)
ns (min)
nV-sec
nV-sec
nV-sec
nV-sec
Units
µsec
µsec
V/µs
kHz
dB

Related parts for dac124s085eb