ADC10D020_14 Datasheet, PDF (7/40 Pages) Texas Instruments – ADC10D020 Dual 10-Bit, 20 MSPS, 150 mW A/D Converter

ADC10D020
www.ti.com
SNAS143D – SEPTEMBER 2001 – REVISED MARCH 2013
Converter Electrical Characteristics (continued)
The following specifications apply for V_A = V_D = V_DR = +3.0 V_DC, V_REF = 1.0 V_DC, GAIN = OF = 0V, OS = 3.0V, V_IN (a.c.
coupled) = FSR = 1.0 V_P-P, C_L = 15 pF, f_CLK = 20 MHz, 50% Duty Cycle, R_S = 50Ω, t_rc = t_fc < 4 ns, NOT offset corrected.
Boldface limits apply for T_A = T_MIN to T_MAX: all other limits T_A = 25°C ⁽¹⁾.
Symbol
Parameter
Conditions
Typical
(2)
Limits ⁽³⁾
Units
(Limits)
IMD Intermodulation Distortion
FPBW
Overrange Output Code
Underrange Output Code
Full Power Bandwidth
f_IN1 < 4.9 MHz, V_IN = FSR −6.1 dB
f_IN2 < 5.1 MHz, V_IN = FSR −6.1 dB
(V_IN+−V_IN−) > 1.1V
(V_IN+−V_IN−) < −1.1V
65
1023
0
140
dB
MHz
INTER-CHANNEL CHARACTERISTICS
Crosstalk
1 MHz input to tested channel, 4.75 MHz input to
other channel
−90
dB
Channel - Channel Aperture Delay
Match
f_IN = 8 MHz
8.5
ps
Channel - Channel Gain Matching
0.03
%FS
REFERENCE AND ANALOG CHARACTERISTICS
V_IN
Analog Differential Input Range
C_IN
Analog Input Capacitance (each
input)
Gain Pin = AGND
Gain Pin = V_A
Clock High
Clock Low
1
V_P-P
2
V_P-P
6
pF
3
pF
R_IN
V_REF
Analog Differential Input Resistance
Reference Voltage
27
kΩ
0.8
V (min)
1.0
1.5
V (max)
I_REF
V_CMO
Reference Input Current
Common Mode Voltage Output
1 mA load to ground (sourcing current)
<1
µA
1.35
V (min)
1.5
1.6
V (max)
TC
V_CMO
Common Mode Voltage Temperature
Coefficient
DIGITAL INPUT CHARACTERISTICS
20
ppm/°C
V_IH
Logical “1” Input Voltage
V_IL
Logical “0” Input Voltage
I_IH
Logical “1” Input Current
I_IL
Logical “0” Input Current
DIGITAL OUTPUT CHARACTERISTICS
V_D = +2.7V
V_D = +3.6V
V_IH = V_D
V_IL = DGND
2.0
V (min)
0.5
V (max)
<1
µA
>−1
µA
V_OH
Logical “1” Output Voltage
V_DR = +2.7V, I_OUT = −0.5 mA
V_OL
Logical “0” Output Voltage
V_DR = +2.7V, I_OUT = 1.6 mA
+I_SC
Output Short Circuit Source Current V_OUT = 0V
Parallel Mode
Multiplexed Mode
V_DR −0.3V
0.4
V (min)
V (max)
−7
mA
−14
mA
Parallel Mode
7
mA
−I_SC
Output Short Circuit Sink Current
V_OUT = V_DR
Multiplexed Mode
14
mA
POWER SUPPLY CHARACTERISTICS
PD = LOW, STBY = LOW, dc input
47.6
55
mA (max)
I_A + I_D Core Supply Current
PD = LOW, STBY = HIGH
8.8
mA
PD = HIGH, STBY = LOW or HIGH
0.22
mA
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