MAX1183 Datasheet, PDF (3/18 Pages) Maxim Integrated Products – Dual 10-Bit, 40Msps, +3V, Low-Power ADC with Internal Reference and Parallel Outputs

Dual 10-Bit, 40Msps, +3V, Low-Power ADC with
Internal Reference and Parallel Outputs
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 = 2Vp-p (differential with respect to COM), C_L = 10pF at digital outputs (Note 5), f_CLK = 40MHz, T_A = T_MIN to
T_MAX, unless otherwise noted. Typical values are at T_A = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Small-Signal Bandwidth
Input at -20dB FS, differential inputs
500
MHz
Full-Power Bandwidth
FPBW Input at -0.5dB FS, differential inputs
400
MHz
Aperture Delay
Aperture Jitter
Overdrive Recovery Time
t_AD
t_AJ
For 1.5 x full-scale input
1
ns
2
ps_RMS
2
ns
Differential Gain
±1
%
Differential Phase
±0.25
Degrees
Output Noise
INTERNAL REFERENCE
INA+ = INA- = INB+ = INB- = COM
0.2
LSB_RMS
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
Positive Reference Output
Voltage
V_REFP
2.048
V
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
0.98 1.024 1.07
V
REFIN Resistance
Maximum REFP, COM
Source Current
R_REFIN
I_SOURCE
>50
MΩ
5
mA
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
4
kΩ
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
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