LTC1590C Linear Technology, LTC1590C Datasheet - Page 3

• Manufacturer Part Number: LTC1590C
• Description: Dual Serial 12-Bit Multiplying DAC
• Manufacturer: Linear Technology

ELECTRICAL CHARACTERISTICS
SYMBOL
Analog Outputs
C
Digital Input
V
V
I
C
Digital Output
V
V
Timing Characteristics
t
t
t
t
t
t
t
t
t
Power Supply
V
I
The
temperature range.
Note 1: 0.5LSB = 0.012% of full scale.
Note 2: Using internal feedback resistor.
Note 3: Guaranteed by design, not subject to test.
Note 4: I
Note 5: OUT1 load = 100 in parallel with 13pF.
Note 6: V
all 1s to all 0s.
Note 7: DAC A output with V
DAC B output with V
loaded with all 1s.
V
IN
1
2
3
4
5
6
7
8
9
CC
OUT
IH
IL
IN
OH
OL
CC
CC
= 4.5V to 5.5V, V
denotes specifications which apply over the full operating
OUT1
REF
PARAMETER
Output Capacitance (Note 3)
Digital Input High Voltage
Digital Input Low Voltage
Digital Input Current
Digital Input Capacitance
Digital Output High Voltage
Digital Output Low Voltage
D
D
CLK High Time
CLK Low Time
CS/LD High Time
LSB CLK to CS/LD
CS/LD Low to CLK High
CLK Low to CS/LD Low
CLK to D
Operating Supply Range
Supply Current
= 0V. DAC register contents changed from all 0s to all 1s or
with DAC register loaded with all 0s.
IN
IN
to CLK Setup Time
to CLK Setup Hold Time
REF B
OUT
REF
Delay
= 0V, V
REF A
= 10V, V
REF A
= 0V and V
= 10kHz 20V
OUT1
REF B
= V
OUT2
= 10kHz 20V
P-P
CONDITIONS
DAC Register Loaded to All 1s
DAC Register Loaded to All 0s
(Note 3) V
I
I
Digital Inputs = 0V or V
OH
OH
. Both DAC registers
= AGND = DGND = 0V, T
= 200 A
= 1.6mA
IN
P-P
= 0V
, or
CC
Note 8: Glitch on DAC A or DAC B output when the other DAC makes a
full-scale transition.
Note 9: 10Hz to 100kHz. Calculation from e
K = Boltzmann constant (J/K ); R = resistance ( ); T = resistor temperature
( K); B = bandwidth (Hz).
Note10: V
LT
Note 11: V
using LT1358 op amp.
Note 12: –3dB bandwidth using LT1358 op amp.
A
®
= T
1124 op amp.
MIN
REF
REF
to T
= 6V
= 10V, 10kHz sine wave, DAC register loaded with all 0s,
MAX
RMS
, unless otherwise noted.
at 1kHz. DAC register loaded with all 1s, using
MIN
2.4
4.5
50
40
40
50
40
20
20
10
4
0
n
0.001
= 4KTRB where:
TYP
60
30
5
LTC1590
MAX
160
0.8
0.4
5.5
90
60
10
8
1
UNITS
3
pF
pF
pF
ns
ns
ns
ns
ns
ns
ns
ns
ns
V
V
A
V
V
V
A