Datasheet

REV. 0
AD7650–SPECIFICATIONS
(–40ⴗC to +85ⴗC, AVDD = DVDD = 5 V, OVDD = 2.7 V to 5.25 V, unless otherwise noted.)
–2–
Parameter Condition Min Typ Max Unit
RESOLUTION 16 Bits
ANALOG INPUT
Voltage Range V
IN+
– V
IN–
0V
REF
V
Operating Input Voltage V
IN+
–0.1 +3 V
V
IN–
–0.1 +0.5 V
Analog Input CMRR f
IN
= 10 kHz 62 dB
Input Current 570 kSPS Throughput 7 µA
Input Impedance See Analog Input Section
THROUGHPUT SPEED
Complete Cycle In Warp Mode 1.75 µs
Throughput Rate In Warp Mode 1 570 kSPS
Time Between Conversions In Warp Mode 1 ms
Complete Cycle In Normal Mode 2 µs
Throughput Rate In Normal Mode 0 500 kSPS
Complete Cycle In Impulse Mode 2.25 µs
Throughput Rate In Impulse Mode 0 444 kSPS
DC ACCURACY
Integral Linearity Error –6 +6 LSB
1
No Missing Codes 15 Bits
Transition Noise 0.7 LSB
Full-Scale Error
2
REF = 2.5 V ± 0.12 % of FSR
Unipolar Zero Error
2
± 5 ± 25 LSB
3
Power Supply Sensitivity AVDD = 5 V ± 5% ± 3 LSB
AC ACCURACY
Signal-to-Noise f
IN
= 100 kHz 86 dB
4
Spurious Free Dynamic Range f
IN
= 100 kHz 98 dB
Total Harmonic Distortion f
IN
= 45 kHz –98 dB
f
IN
= 100 kHz –96 dB
Signal-to-(Noise + Distortion) f
IN
= 100 kHz 86 dB
–60 dB Input, f
IN
= 100 kHz 30 dB
–3 dB Input Bandwidth 18 MHz
SAMPLING DYNAMICS
Aperture Delay 2 ns
Aperture Jitter 5 ps rms
Transient Response Full-Scale Step 250 ns
REFERENCE
External Reference Voltage Range 2.3 2.5 AVDD – 1.85 V
External Reference Current Drain 570 kSPS Throughput 115 µA
DIGITAL INPUTS
Logic Levels
V
IL
–0.3 +0.8 V
V
IH
2.0 OVDD + 0.3 V
I
IL
–1 +1 µA
I
IH
–1 +1 µA
DIGITAL OUTPUTS
Data Format Parallel or Serial 16-Bit
Pipeline Delay Conversion Results Available
Immediately after Completed Conversion
V
OL
I
SINK
= 1.6 mA 0.4 V
V
OH
I
SOURCE
= –500 µA OVDD – 0.6 V
POWER SUPPLIES
Specified Performance
AVDD 4.75 5 5.25 V
DVDD 4.75 5 5.25 V
OVDD 2.7 5.25 V