AD7453
Rev. B | Page 3 of 20
SPECIFICATIONS
VDD = 2.7 V to 5.25 V, fSCLK = 10 MHz, fS = 555 kSPS, VREF = 2.5 V, FIN = 100 kHz, TA = TMIN to TMAX, unless otherwise noted
Table 1.
Parameter
Test Conditions/Comments
Unit
DYNAMIC PERFORMANCE
fIN = 100 kHz
Signal to Noise Ratio (SNR)
2VDD = 2.7 V to 5.25 V
70
dB min
Signal to (Noise + Distortion) (SINAD)
2VDD = 2.7 V to 3.6 V
69
dB min
VDD = 4.75 V to 5.25 V
70
dB min
Total Harmonic Distortion (THD)
2VDD = 2.7 V to 3.6 V; –78 dB typ
–73
dB max
VDD = 4.75 V to 5.25 V; –80 dB typ
–75
dB max
Peak Harmonic or Spurious Noise
2VDD = 2.7 V to 3.6 V; –80 dB typ
–73
dB max
VDD = 4.75 V to 5.25 V; –82 dB typ
–75
dB max
Intermodulation Distortion (IMD)
2fa = 90 kHz; fb = 110 kHz
Second-Order Terms
–80
dB typ
Third-Order Terms
–80
dB typ
5
ns typ
50
ps typ
@ –3 dB
20
MHz typ
@ –0.1 dB
2.5
MHz typ
DC ACCURACY
Resolution
12
Bits
Integral Nonlinearity (INL)
2±1.5
±1
LSB max
Differential Nonlinearity (DNL)
2Guaranteed no missed codes to 12 bits
±0.95
LSB max
±3.5
LSB max
±3
LSB max
ANALOG INPUT
Full-Scale Input Span
VIN+ – VIN–
VREF
V
Absolute Input Voltage
VIN+
VREF
V
VDD = 2.7 V to 3.6 V
–0.1 to +0.4
V
VDD = 4.75 V to 5.25 V
–0.1 to +1.5
V
DC Leakage Current
±1
A max
Input Capacitance
When in track/hold
30/10
pF typ
REFERENCE INPUT
VREF Input Voltage
± 1% tolerance for specified performance
V
DC Leakage Current
±1
A max
VREF Input Capacitance
When in track/hold
10/30
pF typ
LOGIC INPUTS
Input High Voltage, VINH
2.4
V min
Input Low Voltage, VINL
0.8
V max
Input Current, IIN
Typically 10 nA, VIN = 0 V or VDD
±1
A max
10
pF max
LOGIC OUTPUTS
Output High Voltage, VOH
VDD = 4.75 V to 5.25 V, ISOURCE = 200 A
2.8
V min
VDD = 2.7 V to 3.6 V, ISOURCE = 200 A
2.4
V min
Output Low Voltage, VOL
ISINK = 200 A
0.4
V max
Floating-State Leakage Current
±1
A max
Floating-State Output Capacitance
610
pF max
Output Coding
Straight (natural) binary