MAX1421 Maxim, MAX1421 Datasheet - Page 3

• Manufacturer Part Number: MAX1421
• Description: 12-Bit / 40Msps / +3.3V / Low-Power ADC with Internal Reference
• Manufacturer: Maxim

ELECTRICAL CHARACTERISTICS (continued)
(V
f
T
CLK
A
Differential Gain
Differential Phase
ANALOG INPUTS (INP, INN, CML)
Input Resistance
Input Capacitance
Common-Mode Input Level,
(Note 5)
Common-Mode Input Voltage
Range, (Note 5)
Differential Input Range
Small-Signal Bandwidth
Large-Signal Bandwidth
Over-Voltage Recovery
INTERNAL REFERENCE (REFIN bypassed with 0.22µF in parallel with 1nF)
Common-Mode Reference Input
Voltage
Positive Reference Voltage
Range
Negative Reference Voltage
Range
Differential Reference Voltage
Range
Differential Reference
Temperature Coefficient
REFIN Input Resistance
REFIN Input Capacitance
REFIN Reference Input Voltage
Differential Reference Voltage
EXTERNAL REFERENCE (V
REFP, REFN, CML Input Current
REFP, REFN, CML Input
Capacitance
EXTER N AL R EF ER EN C E
AVDD
= +25°C.)
= 40MHz (50% duty cycle), digital output load C
= V
PARAMETER
DVDD
= +3.3V, AGND = DGND = 0, V
_______________________________________________________________________________________
12-Bit, 40Msps, +3.3V, Low-Power ADC
REFIN
= AGND, reference voltage applied to REFP, REFN and CML)
FPBW
SYMBOL
BW
V
REFTC
V
V
V
V
V
V
V
OVR
CMVR
REFIN
C
REFN
C
C
DG
R
V
REFP
R
DP
CML
CML
DIFF
DIFF
I
IN
-3dB
IN
IN
IN
IN
IN
IN
-3dB
Either input to ground
Either input to ground
V
(Note 7)
(Note 7)
1.5
At CML
At REFP
At REFN
V
(Note 8)
V
INP
DIFF
DIFF
✕
IN
- V
L
FS input
= V
= (V
≈ 10pF, T
= ±1.024V, differential input voltage at -0.5dB FS, internal reference,
INN
REFP
REFP
(Note 6)
- V
CONDITIONS
- V
with Internal Reference
A
REFN
REFN
= T
MIN
)
to T
MAX
, unless otherwise noted. Typical values are at
V
0.95
REFIN
-200
MIN
5
✕
/2
V
+ 0.512
- 0.512
V
±V
V
±10%
REFIN
±0.25
V
V
V
1.024
2.048
× 0.5
✕
±100
±5%
±5%
TYP
32.5
AVDD
AVDD
400
150
CML
CML
CML
±1
10
15
DIFF
4
1
0.5
/2
V
1.05
REFIN
MAX
200
✕
/2
degrees
ppm/°C
UNITS
Clock
Cycle
MHz
MHz
kΩ
kΩ
pF
pF
µA
pF
%
V
V
V
V
V
V
V
V
V
3