LTC1588 Datasheet, PDF (3/16 Pages) Linear Integrated Systems – 12-/14-/16-Bit SoftSpan DACs with Programmable Output Range

LTC1588/LTC1589/LTC1592
ELECTRICAL CHARACTERISTICS ^{The q 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
Reference Input
R_REF DAC Input Resistance (Unipolar)
R1, R2 R1, R2 Resistance
(Note 6)
(Notes 6, 11)
q
5
7
10
q
10
14
20
R_OFS Offset Resistance (Bipolar)
±5V, ±10V, ±2.5V Ranges
–2.5V to 7.5V Range
q
10
14
20
q
20
28
40
R_FB
Feedback Resistance (Unipolar)
5V Range
10V Range
q
5
7
10
q
10
14
20
Feedback Resistance (Bipolar)
±5V and –2.5V to 7.5V Ranges
±10V Range
±2.5V Range
q
10
14
20
q
20
28
40
q
5
7
10
Analog Outputs (Note 4)
C_OUT Output Capacitance (I_OUT1)
DAC Load All 1s
160
DAC Load All 0s
100
AC Performance (Note 4)
Settling Time
5V Range, 0V to 5V Step with LT1468 (Note 7)
2
Midscale Glitch Impulse
(Note 10)
2
Multiplying Feedthrough Error
THD Total Harmonic Distortion
V_REF = ±10V, 10kHz Sine Wave
(Note 8) Multiplying
1
– 108
Output Noise Voltage Density
(Note 9) At I_OUT1
11
Digital Inputs
V_IH
Digital Input High Voltage
V_IL
Digital Input Low Voltage
I_IN
Digital Input Current
C_IN
Digital Input Capacitance
Digital Outputs
V_IN = 0V (Note 4)
q 2.4
q
0.8
q
±1
q
8
V_OH
Digital Output High Voltage
V_OL
Digital Output Low Voltage
Timing Characteristics
I_OH = 200µA
I_OL = 1.6mA
q
4
q
0.4
t₁
Serial Input Valid to SCK Setup Time
t₂
Serial Input Valid to SCK Hold Time
t₃
SCK Pulse Width High
t₄
SCK Pulse Width Low
t₅
CS/LD Pulse High Width
t₆
LSB SCK High to CS/LD High
t₇
CS/LD Low to SCK High
t₈
SCK to SDO Propagation Delay
C_LOAD = 50pF
t₉
SCK Low to CS/LD Low
t ₁₀
Clear Pulse Low Width
t ₁₁
CS/LD High to SCK Positive Edge
SCK Frequency
Non-Daisy Chain (Note 12)
Daisy Chain (Note 13)
q
60
q
0
q
35
q
35
q 360
q
35
q
0
q
20
180
q
35
q 100
q
35
q
14.2
4.1
UNITS
kΩ
kΩ
kΩ
kΩ
kΩ
kΩ
kΩ
kΩ
kΩ
pF
pF
µs
nV-s
mV_P-P
dB
nV/√Hz
V
V
µA
pF
V
V
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
MHz
MHz
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