adc12ds105cisq National Semiconductor Corporation, adc12ds105cisq Datasheet - Page 11

• Manufacturer Part Number: adc12ds105cisq
• Description: Dual 12-bit, 105 Msps A/d Converter With Serial Lvds Outputs
• Manufacturer: National Semiconductor Corporation

STATIC CONVERTER CHARACTERISTICS
INL
DNL
REFERENCE AND ANALOG INPUT CHARACTERISTICS
V
V
C
V
DYNAMIC CONVERTER CHARACTERISTICS, A
FPBW
SNR
SFDR
ENOB
THD
H2
Symbol
Symbol
CMO
CM
REF
IN
ADC12DS105 Converter Electrical Characteristics
This product is currently under development. As such, the parameters specified are DESIGN TARGETS. The specifica-
tions cannot be guaranteed until device characterization has taken place.
Unless otherwise specified, the following specifications apply: AGND = DRGND = 0V, V
f
other limits apply for T
ADC12DS105 Dynamic Converter Electrical Characteristics
Unless otherwise specified, the following specifications apply: AGND = DRGND = 0V, V
f
other limits apply for T
CLK
CLK
= 105 MHz, V
= 105 MHz, V
Resolution with No Missing Codes
Integral Non Linearity (Note 11)
Differential Non Linearity
Under Range Output Code
Over Range Output Code
Common Mode Output Voltage
Analog Input Common Mode Voltage
V
(Note 12)
External Reference Voltage
Full Power Bandwidth
Signal-to-Noise Ratio
Spurious Free Dynamic Range
Effective Number of Bits
Total Harmonic Disortion
Second Harmonic Distortion
IN
Input Capacitance (each pin to GND)
CM
CM
= V
= V
A
A
Parameter
Parameter
= 25°C (Notes 8, 9)
= 25°C (Notes 8, 9)
CMO
CMO
, C
, C
L
L
= 5 pF/pin. Typical values are for T
= 5 pF/pin, . Typical values are for T
IN
V
± 0.5 V
-1 dBFS Input, −3 dB Corner
= -1dBFS
IN
= 1.5 Vdc
11
f
f
f
f
f
f
f
IN
f
f
IN
f
f
IN
f
f
IN
f
f
IN
Conditions
Conditions
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
= 240 MHz
= 240 MHz
= 240 MHz
= 240 MHz
= 240 MHz
= 10 MHz
= 70 MHz
= 10 MHz
= 70 MHz
= 10 MHz
= 70 MHz
= 10 MHz
= 70 MHz
= 10 MHz
= 70 MHz
A
A
= 25°C. Boldface limits apply for T
= 25°C. Boldface limits apply for T
(CLK LOW)
(CLK HIGH)
A
A
= V
= V
(Note 10)
(Note 10)
DR
DR
Typical
Typical
±0.25
4095
±0.5
1.20
70.1
69.1
11.3
11.2
10.8
−86
−85
−80
−95
−90
−85
1.5
1.5
8.5
3.5
1.0
= +3.3V, Internal V
= +3.3V, Internal V
67
88
85
83
0
Limits
Limits
1.176
1.224
4095
1.45
1.55
1.4
1.6
12
MIN
0
MIN
≤
≤
T
T
A
REF
REF
A
≤
LSB (max)
LSB (max)
www.national.com
≤
LSB (min)
LSB (min)
Bits (min)
T
(Limits)
(Limits)
(Note 2)
V (max)
V (max)
V (max)
V (min)
V (min)
V (min)
= +1.2V,
= +1.2V,
T
MAX
Units
Units
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
GHz
Bits
Bits
Bits
MAX
pF
pF
. All
. All