AD7621 Analog Devices, AD7621 Datasheet - Page 3

• Manufacturer Part Number: AD7621
• Description: 16-Bit, 2 LSB INL, 3 MSPS PulSAR® ADC
• Manufacturer: Analog Devices

Specifications of AD7621

• Resolution (bits): 16bit
• # Chan: 1
• Sample Rate: 3MSPS
• Interface: Byte,Par,Ser,SPI
• Analog Input Type: Diff-Uni
• Ain Range: (2Vref) p-p
• Adc Architecture: SAR
• Pkg Type: CSP,QFP

SPECIFICATIONS
AVDD = DVDD = 2.5 V; OVDD = 2.3 V to 3.6 V; V
Table 2.
Parameter
RESOLUTION
ANALOG INPUT
THROUGHPUT SPEED
DC ACCURACY
AC ACCURACY
SAMPLING DYNAMICS
INTERNAL REFERENCE
Voltage Range
Operating Input Voltage
Analog Input CMRR
Input Current
Input Impedance
Complete Cycle
Throughput Rate
Time Between Conversions
Complete Cycle
Throughput Rate
Complete Cycle
Throughput Rate
Integral Linearity Error
No Missing Codes
Differential Linearity Error
Transition Noise
Transition Noise
Zero Error, T
Zero Error Temperature Drift
Gain Error, T
Gain Error Temperature Drift
Power Supply Sensitivity
Dynamic Range
Signal-to-Noise
Spurious-Free Dynamic Range
Total Harmonic Distortion
Signal-to-(Noise + Distortion)
–3 dB Input Bandwidth
Aperture Delay
Aperture Jitter
Transient Response
Output Voltage
Temperature Drift
Line Regulation
MIN
MIN
to T
to T
2
MAX
MAX
5
5
3
Conditions
V
V
f
3 MSPS throughput
Wideband warp, warp modes
Wideband warp, warp modes
Wideband warp, warp modes
Normal mode
Normal mode
Impulse mode
Impulse mode
All modes
V
V
V
V
V
AVDD = 2.5 V ± 5%
f
f
f
f
f
f
f
f
f
f
f
Full-scale step
PDREF = PDBUF = low
REF @ 25°C
–40°C to +85°C
AVDD = 2.5 V ± 5%
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
REF
REF
REF
REF
REF
= 100 kHz
= 20 kHz, V
= 20 kHz, V
= 20 kHz, V
= 100 kHz, V
= 20 kHz
= 100 kHz
= 20 kHz
= 100 kHz
= 20 kHz, V
= 20 kHz, V
= 100 kHz, V
+ − V
+
,
= 2.048 V, PDREF = high
= 2.048 V, PDREF = high
= 2.048 V, PDREF = high
= 2.5 V
= 2.048 V
V
IN
REF
− to AGND
IN
−
= 2.5 V; all specifications T
REF
REF
REF
REF
REF
REF
REF
Rev. 0 | Page 3 of 32
= 2.5 V
= 2.5 V
= 2.048 V
= 2.5 V
= 2.048 V
= 2.5 V
= 2.5 V
Min
16
−V
−0.1
0.001
0
0
−2
16
−1
−30
−0.38
88
86
87.5
2.038
REF
MIN
to T
MAX
, unless otherwise noted.
±2
±3
5
±7
±15
Typ
55
25
±1
0.69
0.82
±1
90.5
90
88
89.2
103
101
–102
−100
89.8
87.5
89
50
1
2.048
Max
V
AVDD
333
3
1
500
2
800
1.25
+2
+2
+30
+0.38
50
2.058
REF
1
Bits
Bits
LSB
LSB
LSB
ppm/°C
LSB
dB
ns
ps rms
ppm/°C
ppm/V
Unit
V
V
dB
μA
ns
MSPS
ms
ns
MSPS
ns
MSPS
LSB
LSB
ppm/°C
% of FSR
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
MHz
ns
V
6
4
AD7621