LTC1595/LTC1596/LTC1596-1
5
159561fc
For more information www.linear.com/LTC1595
ELECTRICAL CHARACTERISTICS
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: ±1LSB = ±0.0015% of full-scale = ±15.3ppm of full-scale.
Note 3: Using internal feedback resistor.
Note 4: Guaranteed by design, not subject to test.
Note 5: I
OUT1
with DAC register loaded with all 0s.
Note 6: Typical temperature coefficient is 100ppm/°C.
Note 7: OUT1 load = 100Ω in parallel with 13pF.
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
DD
= 5V ±10%, V
REF
= 10V, V
OUT1
= GND = 0V, T
A
= T
MIN
to T
MAX
,
unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Timing Characteristics (LTC1595)
t
DS
Serial Input to CLK Setup Time
l
30 5 ns
t
DH
Serial Input to CLK Hold Time
l
30 5 ns
t
SRI
Serial Input Data Pulse Width
l
60 ns
t
CH
Clock Pulse Width High
l
60 ns
t
CL
Clock Pulse Width Low
l
60 ns
t
LD
Load Pulse Width
l
60 ns
t
ASB
LSB Clocked into Input Register to DAC Register Load Time
l
0 ns
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Timing Characteristics (LTC1596/LTC1596-1)
t
DS1
Serial Input to Strobe Setup Time STB1 Used as the Strobe
l
30 5 ns
t
DS2
STB2 Used as the Strobe
l
20 –5 ns
t
DS3
STB3 Used as the Strobe
l
25 0 ns
t
DS4
STB4 Used as the Strobe
l
20 –5 ns
t
DH1
Serial Input to Strobe Hold Time STB1 Used as the Strobe
l
30 5 ns
t
DH2
STB2 Used as the Strobe
l
40 15 ns
t
DH3
STB3 Used as the Strobe
l
35 10 ns
t
DH4
STB4 Used as the Strobe
l
40 15 ns
t
SRI
Serial Input Data Pulse Width
l
60 ns
t
STB1
to t
STB4
Strobe Pulse Width (Note 11)
l
60 ns
t
STB1
to t
STB4
Strobe Pulse Width (Note 12)
l
60 ns
t
LD1
, t
LD2
LD Pulse Width
l
60 ns
t
ASB
LSB Strobed Into Input Register to Load DAC
Register Time
l
0 ns
t
CLR
Clear Pulse Width
l
100 ns
t
PD1
STB1 to SRO Propagation Delay C
L
= 50pF
l
30 150 ns
t
PD
STB2, STB3, STB4 to SRO Propagation Delay C
L
= 50pF
l
30 200 ns
Power Supply
V
DD
Supply Voltage
l
4.5 5 5.5 V
I
DD
Supply Current Digital Inputs = 0V or V
DD
l
1.5 10 µA
V
DD
= 5V ±10%, V
REF
= 10V, V
OUT1
= V
OUT2
= AGND = 0V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.
Note 8: To 0.0015% for a full-scale change, measured from the falling
edge of LD1, LD2 or LD.
Note 9: V
REF
= 6V
RMS
at 1kHz. DAC register loaded with all 1s;
op amp = LT1007.
Note 10: Calculation from e
n
= √4kTRB where: k = Boltzmann constant
(J/°K); R = resistance (Ω); T = temperature (°K); B = bandwidth (Hz).
Note 11: Minimum high time for STB1, STB2, STB4. Minimum low time
for STB3.
Note 12: Minimum low time for STB1, STB2, STB4. Minimum high time
for STB3.
