MAX1444 Datasheet, PDF (5/20 Pages) Maxim Integrated Products – 10-Bit, 40Msps, 3.0V, Low-Power ADC with Internal Reference

10-Bit, 40Msps, 3.0V, Low-Power
ADC with Internal Reference
ELECTRICAL CHARACTERISTICS (continued)
(V_DD = 3V; OV_DD = 2.7V; 0.1µF and 1µF capacitors from REFP, REFN, and COM to GND; V_REFIN = 2.048V; REFOUT connected to
REFIN through a 10kΩ resistor; V_IN = 2V_P-P (differential with respect to COM); C_L = 10pF at digital outputs; f_CLK = 40MHz; T_A = T_MIN
to T_MAX, unless otherwise noted. ≥ +25°C guaranteed by production test, < +25°C guaranteed by design and characterization; typi-
cal values are at T_A = +25°C.)
PARAMETER
Input Hysteresis
Input Leakage
Input Capacitance
DIGITAL OUTPUTS (D9–D0)
Output Voltage Low
SYMBOL
V_HYST
I_IH
I_IL
C_IN
CONDITIONS
V_IH = V_DD = OV_DD
V_IL = 0
V_OL I_SINK = 200µA
Output Voltage High
V_OH I_SOURCE = 200µA
Three-State Leakage Current
Three-State Output Capacitance
POWER REQUIREMENTS
Analog Supply Voltage
Output Supply Voltage
Analog Supply Current
Output Supply Current
Power-Supply Rejection
TIMING CHARACTERISTICS
CLK Rise to Output Data Valid
OE Fall to Output Enable
OE Rise to Output Disable
CLK Pulse Width High
CLK Pulse Width Low
Wake-up Time
I_LEAK
C_OUT
OE = OV_DD
OE = OV_DD
V_DD
OV_DD
I_VDD
I_OVDD
PSRR
Operating, f_IN = 19.91MHz at -0.5dBFS
Shutdown, clock idle, PD = OE = OV_DD
Operating, f_IN = 19.91MHz at -0.5dBFS
Shutdown, clock idle, PD = OE = OV_DD
Offset
Gain
t_DO
t_ENABLE
t_DISABLE
t_CH
t_CL
t_WAKE
Figure 6 (Note 3)
Figure 5
Figure 5
Figure 6, clock period 25ns
Figure 6, clock period 25ns
(Note 4)
MIN
TYP
0.1
5
OV_DD -
0.2
5
2.7
3.0
1.7
3.0
19
4
4.5
1
±0.1
±0.1
5
10
15
12.5 ±3.8
12.5 ±3.8
1.7
MAX
±5
±5
0.2
±10
3.6
3.6
27
15
20
8
UNITS
V
µA
pF
V
V
µA
pF
V
V
mA
µA
mA
µA
mV/V
%/V
ns
ns
ns
ns
ns
µs
Note 1: SNR, SINAD, THD, SFDR, and HD3 are based on an analog input voltage of -0.5dBFS referenced to a +1.024V full-scale
input voltage range.
Note 2: Intermodulation distortion is the total power of the intermodulation products relative to the individual carrier. This number is
6dB better if referenced to the two-tone envelope.
Note 3: Digital outputs settle to V_IH / V_IL.
Note 4: REFIN is driven externally. REFP, COM, and REFN are left floating while powered down.
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