Datasheet

LTC1407/LTC1407A
3
1407fb
The l denotes the specifi cations which apply over the full operating temperature range,
otherwise specifi cations are at T
A
= 25°C. With internal reference, V
DD
= 3V.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IN
Analog Differential Input Range (Notes 3, 9) 2.7V ≤ V
DD
≤ 3.3V 0 to 2.5 V
V
CM
Analog Common Mode + Differential
Input Range (Note 10)
0 to V
DD
V
I
IN
Analog Input Leakage Current
l
1µA
C
IN
Analog Input Capacitance 13 pF
t
ACQ
Sample-and-Hold Acquisition Time (Note 6)
l
39 ns
t
AP
Sample-and-Hold Aperture Delay Time 1 ns
t
JITTER
Sample-and-Hold Aperture Delay Time Jitter 0.3 ps
t
SK
Sample-and-Hold Aperture Skew from CH0 to CH1 200 ps
CMRR Analog Input Common Mode Rejection Ratio f
IN
= 1MHz, V
IN
= 0V to 3V
f
IN
= 100MHz, V
IN
= 0V to 3V
–60
–15
dB
dB
ANALOG INPUT
DYNAMIC ACCURACY
The l denotes the specifi cations which apply over the full operating temperature range,
otherwise specifi cations are at T
A
= 25°C. With internal reference, V
DD
= 3V.
SYMBOL PARAMETER CONDITIONS
LTC1407/LTC1407H LTC1407A/LTC1407AH
UNITSMIN TYP MAX MIN TYP MAX
SINAD Signal-to-Noise Plus
Distortion Ratio
100kHz Input Signal
750kHz Input Signal
750kHz Input Signal (H Grade)
100kHz Input Signal, External V
REF
= 3.3V, V
DD
≥ 3.3V
750kHz Input Signal, External V
REF
= 3.3V, V
DD
≥ 3.3V
l
l
68
67
70.5
70.5
70.5
72.0
72.0
70
69
73.5
73.5
73.5
76.3
76.3
dB
dB
dB
dB
dB
THD Total Harmonic
Distortion
100kHz First 5 Harmonics
750kHz First 5 Harmonics
750kHz First 5 Harmonics (H Grade)
l
l
–87
–83
–82
–77
–76
–90
–86
–85
–80
–79
dB
dB
dB
SFDR Spurious Free
Dynamic Range
100kHz Input Signal
750kHz Input Signal
87
83
90
86
dB
dB
IMD Intermodulation
Distortion
1.25V to 2.5V 1.40MHz into CH0
+
, 0V to 1.25V,
1.56MHz into CH0
–
. Also Applicable to CH1
+
and CH1
–
–82 –82 dB
Code-to-Code
Transition Noise
V
REF
= 2.5V (Note 17) 0.25 1 LSB
RMS
Full Power Bandwidth V
IN
= 2.5V
P-P
, SDO = 11585LSB
P-P
(–3dBFS) (Note 15) 50 50 MHz
Full Linear Bandwidth S/(N + D) ≥ 68dB 5 5 MHz
INTERNAL REFERENCE CHARACTERISTICS
T
A
= 25°C. V
DD
= 3V.
PARAMETER CONDITIONS MIN TYP MAX UNITS
V
REF
Output Voltage I
OUT
= 0 2.5 V
V
REF
Output Tempco 15 ppm/°C
V
REF
Line Regulation V
DD
= 2.7V to 3.6V, V
REF
= 2.5V 600 µV/V
V
REF
Output Resistance Load Current = 0.5mA 0.2 Ω
V
REF
Setting Time 2ms