Datasheet

MAX1183
Dual 10-Bit, 40Msps, 3V, Low-Power ADC with
Internal Reference and Parallel Outputs
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ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= 3V, OV
DD
= 2.5V, 0.1µF and 1.0µF capacitors from REFP, REFN, and COM to GND, REFOUT connected to REFIN through a
10kΩ resistor, V
IN
= 2V
P-P
(differential with respect to COM), C
L
= 10pF at digital outputs (Note 1), f
CLK
= 40MHz, T
A
= T
MIN
to T
MAX
,
unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Small-Signal Bandwidth Input at -20dBFS, differential inputs 500 MHz
Full-Power Bandwidth FPBW Input at -0.5dBFS, differential inputs 400 MHz
Aperture Delay t
AD
1ns
Aperture Jitter t
AJ
2ps
RMS
Overdrive Recovery Time For 1.5 x full-scale input 2 ns
Differential Gain ±1 %
Differential Phase ±0.25 Degrees
Output Noise INA+ = INA- = INB+ = INB- = COM 0.2 LSB
RMS
INTERNAL REFERENCE
Reference Output Voltage REFOUT
2.048
±3%
V
Reference Temperature
Coefficient
TC
REF
60
ppm/
°C
Load Regulation 1.25 mV/mA
BUFFERED EXTERNAL REFERENCE (V
REFIN
= 2.048V)
REFIN Input Voltage V
REFIN
2.048 V
Positive Reference Output
Voltage
V
REFP
2.012 V
Negative Reference Output
Voltage
V
REFN
0.988 V
Differential Reference Output
Voltage Range
∆V
REF
∆V
REF
= V
REFP
- V
REFN
0.95 1.024 1.10 V
REFIN Resistance R
REFIN
>50 MΩ
Maximum REFP, COM
Source Current
I
SOURCE
5mA
Maximum REFP, COM
Sink Current
I
SINK
-250 µA
Maximum REFN Source Current I
SOURCE
250 µA
Maximum REFN Sink Current I
SINK
-5 mA
UNBUFFERED EXTERNAL REFERENCE (V
REFIN
= AGND, reference voltage applied to REFP, REFN, and COM)
REFP, REFN Input Resistance
R
REFP
,
R
REFN
Measured between REFP and COM and
REFN and COM
4kΩ
Differential Reference Input
Voltage Range
∆V
REF
∆V
REF
= V
REFP
- V
REFN
1.024
±10%
V
COM Input Voltage Range V
COM
V
DD
/2
±10%
V
REFP Input Voltage V
REFP
V
COM
+
∆V
REF
/2
V
REFN Input Voltage V
REFN
V
COM
-
∆V
REF
/2
V