MAX1084 Datasheet, PDF (4/16 Pages) Maxim Integrated Products – 400ksps/300ksps, Single-Supply, Low-Power, Serial 10-Bit ADCs with Internal Reference

400ksps/300ksps, Single-Supply, Low-Power,
Serial 10-Bit ADCs with Internal Reference
ELECTRICAL CHARACTERISTICS—MAX1085 (continued)
(V_DD = +2.7V to +3.6V, f_SCLK = 4.8MHz, 50% duty cycle, 16 clocks/conversion cycle (300ksps), 4.7µF capacitor at REF, 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
DYNAMIC SPECIFICATIONS (75kHz sinewave, 2.5Vp-p, f_SAMPLE = 300ksps, f_SCLK = 4.8MHz)
Signal-to-Noise Plus Distortion
Ratio
SINAD
60
dB
Total Harmonic Distortion
THD Up to the 5th harmonic
-70
dB
Spurious-Free Dynamic Range SFDR
70
dB
Intermodulation Distortion
Full-Power Bandwidth
IMD f_IN1 = 99kHz, f_IN2 =102kHz
-3dB point
76
dB
3
MHz
Full-Linear Bandwidth
SINAD > 58dB
250
kHz
CONVERSION RATE
Conversion Time (Note 4)
Track/Hold Acquisition Time
Aperture Delay
t_CONV
t_ACQ
3.3
µs
625
ns
10
ns
Aperture Jitter
Serial Clock Frequency
Duty Cycle
f_SCLK
<50
ps
0.5
4.8 MHz
40
60
%
ANALOG INPUT
Input Voltage Range
Input Capacitance
INTERNAL REFERENCE
V_AIN
C_IN
0
2.5
V
18
pF
REF Output Voltage
REF Short Circuit Current
V_REF T_A = +25°C
2.48 2.50 2.52
V
15
mA
REF Output Tempco
Load Regulation (Note 5)
TC V_REF
0 to 0.75mA output load
±15
ppm/°C
0.1
2.0 mV/mA
Capacitive Bypass at REF
DIGITAL INPUTS (SCLK,CS, SHDN)
Input High Voltage
V_INH
Input Low Voltage
V_INL
Input Hysteresis
V_HYST
Input Leakage
I_IN
Input Capacitance
C_IN
DIGITAL OUTPUTS (DOUT)
V_IN = 0 or V_DD
4.7
10
µF
2.0
V
0.8
V
0.2
V
±1
µA
15
pF
Output Voltage Low
Output Voltage High
Three-State Leakage Current
Three-State Output Capacitance
V_OL
V_OH
I_L
C_OUT
I_SINK = 5mA
I_SOURCE = 0.5mA
CS = 3V
CS = 3V
0.4
V
V_{DD -} 0.5V
V
±10
µA
15
pF
POWER SUPPLY
Positive Supply Voltage (Note 6)
Positive Supply Current (Note 7)
Shutdown Supply Current
Power-Supply Rejection
V_DD
I_DD
I_SHDN
PSR
V_DD = 3.6V
SCLK = V_DD, SHDN = GND
V_DD = 2.7V to 3.6V, midscale input
2.7
3.6
V
2.5
3.5
mA
2
10
µA
±0.5 ±2.0 mV
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