AD7993 Datasheet, PDF (5/32 Pages) Analog Devices – 4-Channel, 10- and 12-Bit ADCs with I2C Compatible Interface in 16-Lead TSSOP

AD7993/AD7994
AD7994 SPECIFICATIONS
Temperature range for B version is −40°C to +125°C. Unless otherwise noted, VDD = 2.7 V to 5.5 V; REFIN = 2.5 V. For the AD7994-0,
all specifications apply for fSCL up to 400 kHz. For the AD7994-1, all specs apply for fSCL up to 3.4 MHz, unless otherwise noted.
TA = TMIN to TMAX.
Table 2.
Parameter
DYNAMIC PERFORMANCE¹
Signal-to-Noise + Distortion (SINAD)²
Signal-to-Noise Ratio (SNR)²
Total Harmonic Distortion (THD)²
Peak Harmonic or Spurious Noise (SFDR)²
Intermodulation Distortion (IMD)²
Second-Order Terms
Third-Order Terms
Aperture Delay²
Aperture Jitter²
Channel-to-Channel Isolation²
Full-Power Bandwidth²
DC ACCURACY
Resolution
Integral Nonlinearity^{1, 2}
Differential Nonlinearity^{1, 2}
Offset Error²
Offset Error Match²
Gain Error²
Gain Error Match²
ANALOG INPUT
Input Voltage Range
DC Leakage Current
Input Capacitance
REFERENCE INPUT
REFIN Input Voltage Range
DC Leakage Current
Input Impedance
LOGIC INPUTS (SDA, SCL)
Input High Voltage, VINH
Input Low Voltage, VINL
Input Leakage Current, IIN
Input Capacitance, CIN ³
Input Hysteresis, VHYST
B Version
70.5
71
–78
–79
–90
–90
10
50
-90
11
2
12
±1
±0.2
+1/–0.9
±0.2
±4
±6
±1
±2
±1
0 to REFIN
±1
30
1.2 to VDD
±1
69
0.7 (VDD)
0.3 (VDD)
±1
10
0.1 (VDD)
Unit
dB min
dB min
dB max
dB max
dB typ
dB typ
ns max
ps typ
dB typ
MHz typ
MHz typ
Bits
LSB max
LSB typ
LSB max
LSB typ
LSB max
LSB max
LSB max
LSB max
LSB max
V
µA max
pF typ
V min/V max
µA max
kΩ typ
V min
V max
µA max
pF max
V min
Test Conditions/Comments
FIN = 10 kHz sine wave for fSCL from 1.7 MHz to
3.4 MHz
FIN = 1 kHz sine wave for fSCL up to 400 kHz
fa = 10.1 kHz, fb = 9.9 kHz for fSCL from 1.7 MHz
to 3.4 MHz
fa = 1.1 kHz, fb = 0.9 kHz for fSCL up to 400 kHz
FIN = 108 Hz, see the Terminology section
@ 3 dB
@ 0.1 dB
Guaranteed no missed codes to 12 bits
Mode 1 (CONVST Mode)
Mode 2 (Command Mode)
During a converison
VIN = 0 V or VDD
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