Datasheet

3
LTC1402
The ● denotes the specifications which apply over the full operating temperature range,
otherwise specifications are at T
A
= 25°C. Bipolar mode with ± 5V supplies and unipolar mode with 5V supply. (Note 5)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
S/(N + D) Signal-to-Noise Plus 100kHz Input Signal 72.5 dB
Distortion Ratio 1.1MHz Input Signal
● 69 72.0 dB
THD Total Harmonic 100kHz First 5 Harmonics, Bipolar Mode –89 dB
Distortion 1.1MHz First 5 Harmonics, Bipolar Mode
● –89 –74.5 dB
100kHz First 5 Harmonics, Unipolar Mode –87 dB
1.1MHz First 5 Harmonics, Unipolar Mode –82 dB
SFDR Spurious Free 100kHz Input Signal, Bipolar Mode –93 dB
Dynamic Range 1.1MHz Input Signal, Bipolar Mode –93 dB
100kHz Input Signal, Unipolar Mode –93 dB
1.1MHz Input Signal, Unipolar Mode –84 dB
IMD Intermodulation ±1V 1.25MHz into A
IN
+
, 1.2MHz into A
IN
–
Bipolar Mode –84 dB
Distortion 1.5V to 3.5V 1.25MHz into A
IN
+
, 1.2MHz into A
IN
–
Unipolar Mode –84 dB
Code-to-Code V
REF
= 4.096V, 1LSB = 1mV 0.18 LSB
RMS
Transition Noise
Full Power Bandwidth V
IN
= 4V
P-P
, D
OUT
= 2828LSB
P-P
(Note 18) 82 MHz
Full Linear Bandwidth S/(N + D) ≥ 68dB Bipolar Mode 5.0 MHz
Unipolar Mode 3.5 MHz
DYNAMIC ACCURACY
UW
The ● denotes the specifications which apply over the
full operating temperature range, otherwise specifications are at T
A
= 25°C. (Note 5)
INTERNAL REFERENCE CHARACTERISTICS
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PARAMETER CONDITIONS MIN TYP MAX UNITS
V
REF
Output Voltage I
OUT
= 0 4.096 V
V
REF
Output Tempco 15 ppm/°C
V
REF
Line Regulation AV
DD
= 4.75V to 5.25V, V
REF
= 4.096V 1 LSB/V
V
REF
Output Resistance Load Current = 0.5mA 2 Ω
V
REF
Settling Time 2ms
The ● denotes the specifications which apply over the
full operating temperature range, otherwise specifications are at T
A
= 25°C. (Note 5)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IH
High Level Input Voltage V
DD
= 5.25V ● 2.4 V
V
IL
Low Level Input Voltage V
DD
= 4.75V ● 0.8 V
I
IN
Digital Input Current V
IN
= 0V to V
DD
● ±10 µA
C
IN
Digital Input Capacitance 5pF
V
OH
High Level Output Voltage OV
DD
= 4.75V, I
OUT
= –10µA 4.7 V
OV
DD
= 4.75V, I
OUT
= –200µA ● 4V
OV
DD
= 3V, I
OUT
= –200µA ● 2.5 2.9 V
V
OL
Low Level Output Voltage V
DD
= 4.75V, I
OUT
= 160µA 0.05 V
V
DD
= 4.75V, I
OUT
= 1.6mA ● 0.10 0.4 V
I
OZ
Hi-Z Output Leakage D
OUT
V
OUT
= 0V to V
DD
● ±10 µA
C
OZ
Hi-Z Output Capacitance D
OUT
15 pF
I
SOURCE
Output Short-Circuit Source Current V
OUT
= 0V, OV
DD
= 5V –40 mA
V
OUT
= 0V, OV
DD
= 3V –15 mA
I
SINK
Output Short-Circuit Sink Current V
OUT
= OV
DD
= 5V 40 mA
DIGITAL I PUTS A D DIGITAL OUTPUTS
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