Datasheet

3
LTC1405
1405fa
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IH
High Level Input Voltage (Clock Pin) V
DD
= 5.25V, V
SS
= 0V ● 2.4 V
V
DD
= 5.25V, V
SS
= –5V ● 3.5 V
V
IL
Low Level Input Voltage (Clock Pin) V
DD
= 4.75V, V
SS
= 0V ● 0.8 V
V
DD
= 4.75V, V
SS
= –5V ● 1V
I TER AL REFERE CE CHARACTERISTICS
U
UU
PARAMETER CONDITIONS MIN TYP MAX UNITS
V
CM
Output Voltage I
OUT
= 0 2.475 2.500 2.525 V
V
CM
Output Tempco I
OUT
= 0 ±15 ppm/°C
V
CM
Line Regulation 4.75V ≤ V
DD
≤ 5.25V 0.6 mV/V
–5.25V ≤ V
SS
≤ –4.75V 0.03 mV/V
V
CM
Output Resistance 0.1mA ≤ ⏐I
OUT
⏐ ≤ 0.1mA 8 Ω
V
REF
Output Voltage SENSE = GND, I
OUT
= 0 4.096 V
SENSE = V
REF
, I
OUT
= 0 2.048 V
SENSE = V
DD
Drive V
REF
with V
External Reference
V
REF
Output Tempco ±15 ppm/°C
T
A
= 25°C. Specifications are guaranteed for both dual supply and single supply operation. (Note 5)
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. Specifications are guaranteed for both dual supply and single supply
operation. (Note 5)
The
● denotes the specifications which apply over the full operating temperature range,
otherwise specifications are at T
A
= 25°C. V
DD
= 5V, V
SS
= –5V, f
SAMPLE
= 5MHz, V
REF
= 4.096V. +A
IN
= –0.1dBFS single ended input,
–A
IN
= 0V. (Note 6)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
S/(N + D) Signal-to-Noise Plus Distortion Ratio 1MHz Input Signal ● 69.0 71.6 dB
2.5MHz Input Signal
● 68.7 71.3 dB
THD Total Harmonic Distortion 1MHz Input Signal, First 5 Harmonics ● – 87 –78.5 dB
2.5MHz Input Signal, First 5 Harmonics
● – 83 –77.0 dB
SFDR Peak Harmonic or Spurious Noise 1MHz Input Signal ● – 89 –79.5 dB
2.5MHz Input Signal
● – 85 –78.0 dB
IMD Intermodulation Distortion f
IN1
= 29.37kHz, f
IN2
= 32.446kHz – 80 dB
Full-Power Bandwidth 100 MHz
Input Referred Noise ±2.048V Input Range 0.22 LSB
RMS
±1.024V Input Range, 2x Mode (SENSE = GAIN = 0V) 0.33 LSB
RMS
ACCURACY
IC
DY
U
W
A
PUT
U
IA
A
U
LOG
The ● denotes the specifications which apply over the full operating temperature range, otherwise
specifications are at T
A
= 25°C. Specifications are guaranteed for both dual supply and single supply operation. (Note 5)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
t
AP
Sample-and-Hold Aperture Delay Time –250 ps
t
jitter
Sample-and-Hold Aperture Delay Time Jitter 0.6 ps
CMRR Analog Input Common Mode Rejection Ratio –2.048V < (–A
IN
= +A
IN
) < 2.048V 75 dB
DIGITAL I PUTS AND OUTPUTS
UU