AD7484 Analog Devices, AD7484 Datasheet - Page 3

• Manufacturer Part Number: AD7484
• Description: 14-Bit, 3 MSPS SAR ADC
• Manufacturer: Analog Devices

Specifications of AD7484

• Resolution (bits): 14bit
• # Chan: 1
• Sample Rate: 3MSPS
• Interface: Par
• Analog Input Type: SE-Uni
• Ain Range: Uni 2.5V
• Adc Architecture: SAR
• Pkg Type: QFP

SPECIFICATIONS
AV
to 5.25 V, unless otherwise noted. Operating temperature range is −40°C to +85°C.
Table 1.
Parameter
DYNAMIC PERFORMANCE
DC ACCURACY
ANALOG INPUT
REFERENCE INPUT/OUTPUT
Signal-to-Noise + Distortion (SINAD)
Total Harmonic Distortion (THD)
Peak Harmonic or Spurious Noise
(SFDR)
Intermodulation Distortion (IMD)
Aperture Delay
Full Power Bandwidth
Resolution
Integral Nonlinearity
Differential Nonlinearity
Offset Error
Gain Error
Input Voltage
DC Leakage Current
Input Capacitance
Input Voltage, V
Input DC Leakage Current, V
Input Capacitance, V
Input Current, V
Output Voltage, V
Error @ 25°C, V
Error T
Output Impedance, V
DD
Second Order Terms
Third Order Terms
/DV
MIN
3
DD
to T
3
= 5 V ± 5%, AGND = DGND = 0 V, V
3
MAX
REFOUT
REFIN
REFIN
, V
REFOUT
4
REFOUT
REFIN
3
REFOUT
1, 2
3
4
REFIN
3
3
3
Min
76.5
14
−200
REF
= external, f
Typ
78
79
77
−95
−92
−96
−94
10
40
3.5
±0.5
±0.3
±2
35
+2.5
25
220
+2.5
±50
1
Rev. C | Page 3 of 20
SAMPLE
Max
−90
−90
±1
±0.75
±6
0.036
±6
0.036
+2.7
±1
±1
±100
= 3 MSPS; all specifications T
Unit
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
ns
MHz
MHz
Bits
LSB
LSB
LSB
%FSR
LSB
%FSR
mV
V
µA
µA
pF
V
µA
pF
µA
V
mV
mV
Ω
Test Conditions/Comments
f
f
f
f
Internal reference
f
@ 3 dB
@ 0.1 dB
Guaranteed no missed codes to 14 bits
V
V
± 1% for specified performance
External reference
IN
IN
IN
IN
IN1
MIN
IN
IN
= 1 MHz
= 1 MHz
= 1 MHz, extended input
= 1 MHz, internal reference
from 0 V to 2.7 V
= −200 mV
= 95.053 kHz, f
to T
MAX
and valid for V
IN2
= 105.329 kHz
DRIVE
AD7484
= 2.7 V