Datasheet

3
LTC1594L/LTC1598L
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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 ±3 LSB
Differential Linearity Error ● ± 3/4 ±1 LSB
Offset Error ● ±3 ±3 LSB
Gain Error ● ±8 ±8 LSB
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 68 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
= 3.6V ● 2.0 V
V
IL
Low Level Input Voltage V
CC
= 2.7V ● 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
= 2.7V, I
O
= 10µA ● 2.4 2.64 V
V
CC
= 2.7V, I
O
= 360µA ● 2.1 2.30 V
V
OL
Low Level Output Voltage V
CC
= 2.7V, I
O
= 400µA ● 0.4 V
I
OZ
Hi-Z Output Leakage CS = High ● ±3 µA
I
SOURCE
Output Source Current V
OUT
= 0V –10 mA
I
SINK
Output Sink Current V
OUT
= V
CC
15 mA
R
REF
Reference Input Resistance CS = V
IH
2700 MΩ
CS = V
IL
60 kΩ
I
REF
Reference Current CS = V
CC
● 0.001 2.5 µA
t
CYC
≥ 760µs, f
CLK
≤ 25kHz 50 µA
t
CYC
≥ 60µs, f
CLK
≤ 200kHz ● 50 70 µA
I
CC
Supply Current CS = V
CC
, CLK = V
CC
, D
IN
= V
CC
● 0.001 ±5 µA
t
CYC
≥ 760µs, f
CLK
≤ 25kHz 160 µA
t
CYC
≥ 60µs, f
CLK
≤ 200kHz ● 160 400 µA
LTC1594LCS/LTC1598LCG LTC1594LIS/LTC1598LIG
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)
T
A
= 25°C, f
SMPL
= 10.5kHz. (Note 5)