LTC2228/LTC2227/LTC2226
4
222876fb
DYNAMIC ACCURACY The l denotes the specications which apply over the full operating temperature range,
otherwise specications are at TA = 25°C. AIN = –1dBFS. (Note 4)
SYMBOL PARAMETER
CONDITIONS
LTC2228
LTC2227
LTC2226
UNITS
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
SFDR
Spurious Free
Dynamic Range
4th Harmonic
or Higher
5MHz Input
95
dB
12.5MHz Input
l
82
95
dB
20MHz Input
l
82
95
dB
30MHz Input
l
82
95
dB
70MHz Input
95
dB
140MHz Input
90
dB
S/(N+D)
Signal-to-Noise
Plus Distortion
Ratio
5MHz Input
71.3
71.4
dB
12.5MHz Input
l
69.8
71.2
dB
20MHz Input
l
69.7
71.2
dB
30MHz Input
l
69.6
71.2
dB
70MHz Input
71.1
70.9
70.8
dB
140MHz Input
69.9
69.8
dB
IMD
Intermodulation
Distortion
fIN1 = 28.2MHz,
fIN2 = 26.8MHz
90
dB
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VCM Output Voltage
IOUT = 0
1.475
1.500
1.525
V
VCM Output Tempco
±25
ppm/°C
VCM Line Regulation
2.7V < VDD < 3.4V
3
mV/V
VCM Output Resistance
–1mA < IOUT < 1mA
4
Ω
INTERNAL REFERENCE CHARACTERISTICS (Note 4)
DIGITAL INPUTS AND DIGITAL OUTPUTS The l denotes the specications which apply over the full
operating temperature range, otherwise specications are at TA = 25°C. (Note 4)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
LOGIC INPUTS (CLK, OE, SHDN)
VIH
High Level Input Voltage
VDD = 3V
l
2V
VIL
Low Level Input Voltage
VDD = 3V
l
0.8
V
IIN
Input Current
VIN = 0V to VDD
l
–10
10
μA
CIN
Input Capacitance
(Note 7)
3
pF
LOGIC OUTPUTS
OVDD = 3V
COZ
Hi-Z Output Capacitance
OE = High (Note 7)
3
pF
ISOURCE
Output Source Current
VOUT = 0V
50
mA
ISINK
Output Sink Current
VOUT = 3V
50
mA
VOH
High Level Output Voltage
IO = –10μA
IO = –200μA
l
2.7
2.995
2.99
V
VOL
Low Level Output Voltage
IO = 10μA
IO = 1.6mA
l
0.005
0.09
0.4
V
OVDD = 2.5V
VOH
High Level Output Voltage
IO = –200μA
2.49
V
VOL
Low Level Output Voltage
IO = 1.6mA
0.09
V
OVDD = 1.8V
VOH
High Level Output Voltage
IO = –200μA
1.79
V
VOL
Low Level Output Voltage
IO = 1.6mA
0.09
V