ELECTRICAL CHARACTERISTICS: +VA = +5V
At –40°C to +85°C, +VA = +5V, VREF = +2.5V, fSAMPLE = 500kHz, and fCLK = 20 • fSAMPLE, unless otherwise specified.
ADS8322Y
ADS8322YB
TYP
PARAMETER
RESOLUTION
CONDITIONS
MIN
TYP
MAX
MIN
MAX
UNITS
16
ꢀ
Bits
ANALOG INPUT
Full-Scale Input Span(1)
+IN – (–IN)
+IN
0
+2VREF
VA + 0.1
+0.5
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
V
V
Absolute Input Range
–0.1
–0.1
–IN
V
Capacitance
25
ꢀ
ꢀ
pF
nA
Leakage Current
±1
SYSTEM PERFORMANCE
No Missing Codes
Integral Linearity Error
Offset Error
14
15
Bits
LSBs(2)
mV
±4
±8
±2
±3
±6
±1
±1.0
±0.5
Gain Error(3)
±0.25
70
±0.50
±0.12
ꢀ
±0.25
% of FSR
dB
Common-Mode Rejection Ratio
Noise
Power Supply Rejection Ratio
At DC
60
±3
ꢀ
ꢀ
µVrms
LSBs
At FFFFH Output Code
SAMPLING DYNAMICS
Conversion Time
1.6
0.4
500
ꢀ
ꢀ
ꢀ
µs
µs
Acquisition Time
Throughput Rate
Aperture Delay
Aperture Jitter
Small-Signal Bandwidth
Step Response
kHz
ns
ps
MHz
ns
50
30
20
ꢀ
ꢀ
ꢀ
ꢀ
100
DYNAMIC CHARACTERISTICS
Total Harmonic Distortion(4)
VIN = 5Vp-p at 100kHz
VIN = 5Vp-p at 100kHz
VIN = 5Vp-p at 100kHz
–90
81
–93
83
dB
dB
dB
SINAD
Spurious Free Dynamic Range
94
96
REFERENCE OUTPUT
Voltage
Source Current
Drift
IOUT = 0
Static Load
IOUT = 0
2.475
1.5
2.50
2.525
10
2.48
ꢀ
2.52
ꢀ
V
µA
pp[/°C
mV
20
0.6
ꢀ
ꢀ
Line Regulation
4.75V ≤ VCC ≤ 5.25V
REFERENCE INPUT
Range
Resistance(5)
2.55
ꢀ
ꢀ
V
kΩ
to Internal Reference Voltage
10
ꢀ
ꢀ
DIGITAL INPUT/OUTPUT
Logic Family
Logic Levels:
VIH
CMOS
IIH ≤ +5µA
IIL ≤ +5µA
3.0
–0.3
4.0
+VA
0.8
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
V
V
V
V
VIL
VOH
IOH = 2 TTL Loads
IOL = 2 TTL Loads
VOL
0.4
ꢀ
Data Format
Straight Binary
CMOS
ꢀ
ꢀ
POWER-SUPPLY REQUIREMENT
Logic Family
+VA
4.75
4.75
5
5
5.25
5.25
25
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
V
V
+VD
Supply Current
Power Dissipation
fSAMPLE = 500kHz
fSAMPLE = 500kHz
17
85
mA
mW
125
TEMPERATURE RANGE
Specified Performance
–40
+85
ꢀ
ꢀ
°C
ꢀ Specifications same as ADS8322Y.
NOTES: (1) Ideal input span; does not include gain or offset error. (2) LSB means Least Significant Bit, with VREF equal to +2.5V; 1LSB = 76µV. (3) Measured relative
to an ideal, full-scale input (+In – (–In)) of 4.9999V. Thus, gain error includes the error of the internal voltage reference. (4) Calculated on the first nine harmonics
of the input frequency. (5) Can vary ±30%.
ADS8322
SBAS215
3
BB [ BURR-BROWN CORPORATION ]
