4
LTC1588/LTC1589/LTC1592
1588992fa
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: ±1LSB = ±0.0015% of full scale = ±15.3ppm of full scale
(LTC1592). ±1LSB = ±0.006% of full scale = ±61.2ppm of full scale
(LTC1589). ±1LSB = 0.024% of full scale = ±244.8ppm of full scale
(LTC1588).
Note 3: Using internal feedback resistor.
Note 4: Guaranteed by design, not subject to test.
Note 5: I
OUT1
with DAC register loaded to all 0s.
Note 6: Typical temperature coefficient is 100ppm/°C.
Note 7: To 0.0015% for a full-scale change, measured from the falling
edge of LD for the LTC1592 only.
Note 8: REF = 6V
RMS
at 1kHz. DAC register loaded with all 1s. Output
amplifier = LT1468.
ELECTRICAL CHARACTERISTICS
The ● denotes specifications which apply over the full operating
temperature range, otherwise specifications are T
A
= T
MIN
to T
MAX
, V
CC
= 5V, V
REF
= 5V, I
OUT2
= AGND = GND = 0V.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Power Supply
V
CC
Supply Voltage ● 4.5 5 5.5 V
I
CC
Supply Current, V
CC
Digital Inputs = 0V or V
CC
● 10 µA
Note 9: Calculation from e
n
= √4kTRB where: k = Boltzmann constant
(1.38E-23 J/°K); R = resistance (Ω); T = temperature (°K); B = bandwidth
(Hz).
Note 10: Midscale transition code: 32767 to 32768 for the LTC1592, 8191
to 8192 for the LTC1589, 2047 to 2048 for the LTC1588.
Note 11: R1 and R2 are measured between R1 and R
COM
, R2 and R
COM
.
Note 12: If a continuous clock is used with data changing on the rising
edge of SCK, setup and hold time (t
1
, t
2
) will limit the maximum clock
frequency. If data changes on the falling edge of SCK then the setup time
will limit the maximum clock frequency to 8MHz (continuous 50% duty
cycle clock).
Note 13: SDO propagation delay and SDI setup time (t
8
, t
1
) limit the
maximum clock frequency for daisy chaining.
TYPICAL PERFOR A CE CHARACTERISTICS
UW
TIME (µs)
0
OUTPUT VOLTAGE (mV)
–10
0
10
0.6
1.0
1588992 G03
–20
–30
–40
0.2 0.4 0.8
20
30
40
USING AN LT1468
C
FEEDBACK
= 30pF
V
REF
= 10V
1nV-s TYPICAL
Midscale Glitch Impulse
(LTC1588/LTC1589/LTC1592)
Supply Current vs Input Voltage
INPUT VOLTAGE (V)
0
SUPPLY CURRENT (mA)
3
4
5
4
1588992 G09
2
1
0
1
2
3
5
V
CC
= 5V
ALL DIGITAL INPUTS
TIED TOGETHER
Logic Threshold vs Supply Voltage
SUPPLY VOLTAGE (V)
0
0
LOGIC THRESHOLD (V)
0.5
1.0
1.5
2.0
3.0
1
234
1588992 G10
576
2.5
