AD7450ARMZ-REEL7 View Datasheet(PDF) - Analog Devices
Part Name
Description
Manufacturer
AD7450ARMZ-REEL7 Datasheet PDF : 22 Pages
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AD7450–SPECIFICATIONS1
(VDD = 2.7 V to 3.3 V, fSCLK = 15 MHz, fS = 833 kSPS, VREF = 1.25 V, FIN = 200 kHz;
VDD = 4.75 V to 5.25 V, fSCLK = 18 MHz, fS = 1 MSPS, VREF = 2.5 V, FIN = 300 kHz; VCM2 = VREF; TA = TMIN to TMAX, unless otherwise noted.)
Parameter
DYNAMIC PERFORMANCE
Signal-to-(Noise + Distortion) Ratio
(SINAD)3
Total Harmonic Distortion (THD)3
Peak Harmonic or Spurious Noise3
Intermodulation Distortion (IMD)3
Second Order Terms
Third Order Terms
Aperture Delay3
Aperture Jitter3
Full Power Bandwidth3
Power Supply Rejection Ratio
(PSRR)3, 4
DC ACCURACY
Resolution
Integral Nonlinearity (INL)3
Differential Nonlinearity (DNL)3
Zero Code Error3
Positive Gain Error3
Negative Gain Error3
ANALOG INPUT
Full-Scale Input Span
Absolute Input Voltage
VIN+
VIN–
DC Leakage Current
Input Capacitance
REFERENCE INPUT
VREF Input Voltage
DC Leakage Current
VREF Input Capacitance
LOGIC INPUTS
Input High Voltage, VINH
Input Low Voltage, VINL
Input Current, IIN
Input Capacitance, CIN8
LOGIC OUTPUTS
Output High Voltage, VOH
Output Low Voltage, VOL
Floating-State Leakage Current
Floating-State Output Capacitance8
Output Coding
Conditions/Comments
A Version
B Version
Unit
VDD = 5 V
VDD = 3 V
VDD = 5 V, –80 dB typ
VDD = 3 V, –78 dB typ
VDD = 5 V, –82 dB typ
VDD = 3 V, –80 dB typ
@ –3 dB
@ –0.1 dB
70
70
dB min
68
68
dB min
–75
–75
dB max
–73
–73
dB max
–75
–75
dB max
–73
–73
dB max
–85
–85
dB typ
–85
–85
dB typ
10
10
ns typ
50
50
ps typ
20
20
MHz typ
2.5
2.5
MHz typ
–87
–87
dB typ
Guaranteed No Missed
Codes to 12 Bits
VDD = 5 V
VDD = 3 V
VDD = 5 V
VDD = 3 V
VDD = 5 V
VDD = 3 V
2 ϫ VREF5
VCM2 = VREF
VCM2 = VREF
When in Track
When in Hold
12
12
±2
±1
–1/+2
±1
±3
±3
±6
±6
±3
±3
±6
±6
±3
±3
±6
±6
Bits
LSB max
LSB max
LSB max
LSB max
LSB max
LSB max
LSB max
LSB max
VIN+ – VIN–
VCM ± VREF/2
VCM ± VREF/2
±1
20
6
VIN+ – VIN–
VCM ± VREF/2
VCM ± VREF/2
±1
20
6
V
V
V
µA max
pF typ
pF typ
5 V supply (± 1% tolerance for
specified performance)
3 V supply (± 1% tolerance for
specified performance)
2.56
1.257
±1
15
2.56
1.257
±1
15
V
V
µA max
pF typ
2.4
2.4
V min
0.8
0.8
V max
Typically 10 nA, VIN = 0 V or VDD ± 1
±1
µA max
10
10
pF max
VDD = 5 V, ISOURCE = 200 µA
VDD = 3 V, ISOURCE = 200 µA
ISINK = 200 µA
2.8
2.4
0.4
±1
10
Two’s
Complement
2.8
2.4
0.4
±1
10
Two’s
Complement
V min
V min
V max
µA max
pF max
–2–
Rev. A
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