MAX1393 Datasheet, PDF (3/19 Pages) Maxim Integrated Products – 1.5V to 3.6V, 312.5ksps, 1-Channel True-Differential/ 2-Channel Single-Ended, 12-Bit, SAR ADCs

1.5V to 3.6V, 312.5ksps, 1-Channel True-Differential/
2-Channel Single-Ended, 12-Bit, SAR ADCs
ELECTRICAL CHARACTERISTICS (continued)
(V_DD = +1.5V to +3.6V, V_REF = V_DD, C_REF = 0.1µF, f_SCLK = 5MHz, T_A = T_MIN to T_MAX, unless otherwise noted. Typical values are at
T_A = +25°C.)
PARAMETER
Full-Power Bandwidth
Full-Linear Bandwidth
CONVERSION RATE
Conversion Time
Throughput Rate
SYMBOL
CONDITIONS
-3dB point
SINAD > 68dB
MAX1393
MAX1396
MIN TYP MAX UNITS
4
MHz
200
kHz
150
t_CONV 13 clock cycles
2.6
16 clock cycles per conversion; includes
power-up, acquisition, and conversion time
312.5
µs
ksps
Power-Up and Acquisition Time
t_ACQ
Aperture Delay
t_AD
Aperture Jitter
t_AJ
Serial Clock Frequency
f_CLK
ANALOG INPUTS (AIN+, AIN-, AIN1, AIN2)
Input Voltage Range
V_IN
Common-Mode Input Voltage
Range
V_CM
Three SCLK cycles
600
0.1
Unipolar
Bipolar, MAX1393 only, (AIN+ - AIN-)
0
-V_REF/2
Bipolar, MAX1393 only, [(AIN+) + (AIN-)] / 2 0
ns
8
ns
30
ps
5.0
MHz
V_REF
V
+V_REF/2
V_DD
V
Input Leakage Current
Channel not selected, or conversion
stopped, or in shutdown mode
±1
µA
Input Capacitance
REFERENCE INPUT (REF)
16
pF
REF Input Voltage Range
V_REF
0.6
V_DD +
V
0.05
REF Input Capacitance
REF DC Leakage Current
REF Input Dynamic Current
312.5ksps
DIGITAL INPUTS (SCLK, CS, OE, CH1/CH2, UNI/BIP)
24
pF
0.025 ±2.5
µA
20
60
µA
Input-Voltage Low
V_IL
0.3 x
V
V_DD
Input-Voltage High
V_IH
0.7 x
V_DD
V
Input Hysteresis
Input Leakage Current
Input Capacitance
DIGITAL OUTPUT (DOUT)
I_IL
Inputs at GND or V_DD
CS, OE
C_IN
CH1/CH2, UNI/BIP
0.06 x
V_DD
V
±1
µA
1
pF
12.5
Output-Voltage Low
V_OL
I_SINK = 2mA
0.1 x
V
V_DD
Output-Voltage High
V_OH
I_SOURCE = 2mA
0.9 x
V_DD
V
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