Datasheet

3
LTC1594/LTC1598
15948fb
CONVERTER AND MULTIPLEXER CHARACTERISTICS
UW
U
PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
Resolution (No Missing Codes) ● 12 12 Bits
Integral Linearity Error (Note 6) ● ±3 ±3LSB
Differential Linearity Error ● ± 3/4 ±1LSB
Offset Error ● ±3 ±3LSB
Gain Error ● ±8 ±8LSB
REF Input Range (Notes 7, 8) 1.5V to V
CC
+ 0.05V V
Analog Input Range (Notes 7, 8) –0.05V to V
CC
+ 0.05V V
MUX Channel Input Leakage Current Off Channel ● ±200 ±200 nA
MUXOUT Leakage Current Off Channel ● ±200 ±200 nA
ADCIN Input Leakage Current (Note 9) ● ±1 ±1 μA
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
S/(N + D) Signal-to-Noise Plus Distortion Ratio 1kHz Input Signal 71 dB
THD Total Harmonic Distortion (Up to 5th Harmonic) 1kHz Input Signal –78 dB
SFDR Spurious-Free Dynamic Range 1kHz Input Signal 80 dB
Peak Harmonic or Spurious Noise 1kHz Input Signal –80 dB
DYNAMIC ACCURACY
UW
DIGITAL AND DC ELECTRICAL CHARACTERISTICS
U
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IH
High Level Input Voltage V
CC
= 5.25V ● 2.6 V
V
IL
Low Level Input Voltage V
CC
= 4.75V ● 0.8 V
I
IH
High Level Input Current V
IN
= V
CC
● 2.5 μA
I
IL
Low Level Input Current V
IN
= 0V ● –2.5 μA
V
OH
High Level Output Voltage V
CC
= 4.75V, I
O
= –10μA ● 4.0 4.64 V
V
CC
= 4.75V, I
O
= –360A ● 2.4 4.62 V
V
OL
Low Level Output Voltage V
CC
= 4.75V, I
O
= 1.6mA ● 0.4 V
I
OZ
Hi-Z Output Leakage CS = High ● ±3 μA
I
SOURCE
Output Source Current V
OUT
= 0V – 25 mA
I
SINK
Output Sink Current V
OUT
= V
CC
45 mA
R
REF
Reference Input Resistance CS = V
IH
5000 MΩ
CS = V
IL
55 kΩ
I
REF
Reference Current CS = V
CC
● 0.001 2.5 μA
t
CYC
≥ 760μs, f
CLK
≤ 25kHz 90 μA
t
CYC
≥ 60μs, f
CLK
≤ 320kHz ● 90 140 μA
I
CC
Supply Current CS = V
CC
, CLK = V
CC
, D
IN
= V
CC
● 0.001 ±7 μA
t
CYC
≥ 760μs, f
CLK
≤ 25kHz 320 μA
t
CYC
≥ 60μs, f
CLK
≤ 320kHz ● 320 690 μA
(Note 5) f
SMPL
= 16.8kHz
LTC1594CS/LTC1598CG
LTC1594IS/LTC1598IG
The ● denotes the specifications which
apply over the full operating temperature range, otherwise specifications are at T
A
= 25°C. (Note 5)
The
● denotes the specifications which
apply over the full operating temperature range, otherwise specifications are at T
A
= 25°C. (Note 5)