Datasheet

3
LTC7543/LTC8143
V
DD
= 5V, V
REF
= 10V, V
OUT1
= V
OUT2
= AGND = DGND = 0V, T
A
= T
MIN
to T
MAX
, unless otherwise specified.
LTC8143E LTC8143F
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
Resolution ● 12 12 Bits
INL Integral Nonlinearity (Note 1)
● ±0.5 ±1 LSB
(Relative Accuracy)
DNL Differential Nonlinearity Guaranteed Monotonic, T
MIN
to T
MAX
● ±0.5 ±1 LSB
GE Gain Error (Note 2) T
A
= 25°C ±1 ±2 LSB
T
MIN
to T
MAX
● ±2 ±2 LSB
Gain Temperature Coefficient (Note 3)
● 15 15ppm/°C
(∆Gain/∆Temp)
I
LKG
Output Leakage Current (Note 4) T
A
= 25°C ±5 ±5nA
T
MIN
to T
MAX
● ±25 ±25 nA
Zero-Scale Error T
A
= 25°C ±0.03 ±0.03 LSB
T
MIN
to T
MAX
● ±0.15 ±0.15 LSB
PSRR Power Supply Rejection Ratio V
DD
= 5V ±5% ● ±0.0001 ±0.002 ±0.0001 ±0.002 %/%
ACCURACY CHARACTERISTICS – LTC8143
V
DD
= 5V, V
REF
= 10V, V
OUT1
= V
OUT2
= AGND = DGND = 0V, T
A
= T
MIN
to T
MAX
, unless otherwise specified.
ELECTRICAL CHARACTERISTICS – LTC7543/LTC8143
LTC7543/LTC8143
ALL GRADES
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Reference Input
R
REF
V
REF
Input Resistance (Note 5) ● 81115 kΩ
AC Performance (Note 3)
Output Current Settling Time (Notes 6, 7) ● 0.25 1 µs
Multiplying Feedthrough Error V
REF
= ±10V, 10kHz Sinewave ● 0.8 2 mV
P-P
Digital-to-Analog Glitch Energy (Notes 6, 8) ● 2 20 nV-sec
THD Total Harmonic Distortion (Note 9) ● –108 –92 dB
Output Noise Voltage Density (Note 10) ● 13 nV/√Hz
Analog Outputs (Note 3)
C
OUT
Output Capacitance DAC Register Loaded to All 1s C
OUT1
● 60 90 pF
C
OUT2
● 20 60 pF
DAC Register Loaded to All 0s C
OUT1
● 30 60 pF
C
OUT2
● 50 90 pF
Digital Inputs
V
IH
Digital Input High Voltage ● 2.4 V
V
IL
Digital Input Low Voltage ● 0.8 V
I
IN
Digital Input Current V
IN
= 0V to V
DD
● 0.001 ±1 µA
C
IN
Digital Input Capacitance (Note 3), V
IN
= 0V ● 8pF
Digital Outputs: SRO (LTC8143 Only)
V
OH
Digital Output High I
OH
= –200µA ● 4V
V
OL
Digital Output Low I
OL
= 1.6mA ● 0.4 V