Datasheet

LTC1604
3
1604fa
DYNAMIC ACCURACY
(Note 5)
(Note 5)
(Note 5)
SYMBOL PARAMETER CONDITIONS
LTC1604 LTC1604A
UNITSMIN TYP MAX MIN TYP MAX
S/N Signal-to-Noise Ratio 5kHz Input Signal
100kHz Input Signal
l
90
90
87 90
90
dB
dB
S/(N + D) Signal-to-(Noise + Distortion) Ratio 5kHz Input Signal
100kHz Input Signal (Note 10)
l
90
89 84
90
89
dB
dB
THD Total Harmonic Distortion
Up to 5th Harmonic
5kHz Input Signal
100kHz Input Signal
l
–100
–94
–100
–94 –88
dB
dB
SFDR Spurious Free Dynamic Range 100kHz Input Signal 96 96 dB
IMD Intermodulation Distortion f
IN1
= 29.37kHz, f
IN2
= 32.446kHz –88 –88 dB
Full Power Bandwidth 5 5 MHz
Full Linear Bandwidth (S/(N + D) ≥ 84dB 350 350 kHz
INTERNAL REFERENCE CHARACTERISTICS
DIGITAL INPUTS AND DIGITAL OUTPUTS
PARAMETER CONDITIONS MIN TYP MAX UNITS
V
REF
Output Voltage I
OUT
= 0 2.475 2.500 2.515 V
V
REF
Output Tempco I
OUT
= 0 ±15 ppm/°C
V
REF
Line Regulation 4.75 ≤ V
DD
≤ 5.25V
–5.25V ≤ V
SS
≤ –4.75V
0.01
0.01
LSB/V
LSB/V
V
REF
Output Resistance 0 ≤ |I
OUT
| ≤ 1mA 7.5 kΩ
REFCOMP Output Voltage I
OUT
= 0 4.375 V
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IH
High Level Input Voltage V
DD
= 5.25V
l
2.4 V
V
IL
Low Level Input Voltage V
DD
= 4.75V
l
0.8 V
I
IN
Digital Input Current V
IN
= 0V to V
DD
l
±10 μA
C
IN
Digital Input Capacitance 5pF
V
OH
High Level Output Voltage V
DD
= 4.75V, I
OUT
= –10μA
V
DD
= 4.75V, I
OUT
= –400μA
l
4.0
4.5 V
V
V
OL
Low Level Output Voltage V
DD
= 4.75V, I
OUT
= 160μA
V
DD
= 4.75V, I
OUT
= 1.6mA
l
0.05
0.10 0.4
V
V
I
OZ
Hi-Z Output Leakage D15 to D0 V
OUT
= 0V to V
DD
, CS High
l
±10 μA
C
OZ
Hi-Z Output Capacitance D15 to D0 CS High (Note 11)
l
15 pF
I
SOURCE
Output Source Current V
OUT
= 0V –10 mA
I
SINK
Output Sink Current V
OUT
= V
DD
10 mA