
3
LTC1588/LTC1589/LTC1592
1588992fa
ELECTRICAL CHARACTERISTICS The q denotes specifications which apply over the full operating
temperature range, otherwise specifications are TA = TMIN to TMAX, VCC = 5V, VREF = 5V, IOUT2 = AGND = GND = 0V.
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Reference Input
RREF
DAC Input Resistance (Unipolar)
(Note 6)
q
57
10
k
R1, R2
R1, R2 Resistance
(Notes 6, 11)
q
10
14
20
k
ROFS
Offset Resistance (Bipolar)
±5V, ±10V, ±2.5V Ranges
q
10
14
20
k
–2.5V to 7.5V Range
q
20
28
40
k
RFB
Feedback Resistance (Unipolar)
5V Range
q
57
10
k
10V Range
q
10
14
20
k
Feedback Resistance (Bipolar)
±5V and –2.5V to 7.5V Ranges
q
10
14
20
k
±10V Range
q
20
28
40
k
±2.5V Range
q
57
10
k
Analog Outputs (Note 4)
COUT
Output Capacitance (IOUT1)
DAC Load All 1s
160
pF
DAC Load All 0s
100
pF
AC Performance (Note 4)
Settling Time
5V Range, 0V to 5V Step with LT1468 (Note 7)
2
s
Midscale Glitch Impulse
(Note 10)
2
nV-s
Multiplying Feedthrough Error
VREF = ±10V, 10kHz Sine Wave
1
mVP-P
THD
Total Harmonic Distortion
(Note 8) Multiplying
– 108
dB
Output Noise Voltage Density
(Note 9) At IOUT1
11
nV/
√Hz
Digital Inputs
VIH
Digital Input High Voltage
q
2.4
V
VIL
Digital Input Low Voltage
q
0.8
V
IIN
Digital Input Current
q
±1
A
CIN
Digital Input Capacitance
VIN = 0V (Note 4)
q
8pF
Digital Outputs
VOH
Digital Output High Voltage
IOH = 200A
q
4V
VOL
Digital Output Low Voltage
IOL = 1.6mA
q
0.4
V
Timing Characteristics
t1
Serial Input Valid to SCK Setup Time
q
60
ns
t2
Serial Input Valid to SCK Hold Time
q
0ns
t3
SCK Pulse Width High
q
35
ns
t4
SCK Pulse Width Low
q
35
ns
t5
CS/LD Pulse High Width
q
360
ns
t6
LSB SCK High to CS/LD High
q
35
ns
t7
CS/LD Low to SCK High
q
0ns
t8
SCK to SDO Propagation Delay
CLOAD = 50pF
q
20
180
ns
t9
SCK Low to CS/LD Low
q
35
ns
t10
Clear Pulse Low Width
q
100
ns
t11
CS/LD High to SCK Positive Edge
q
35
ns
SCK Frequency
Non-Daisy Chain (Note 12)
q
14.2
MHz
Daisy Chain (Note 13)
4.1
MHz