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ADS8323Y Datasheet, PDF (3/25 Pages) Texas Instruments – 16-Bit, 500kSPS, microPower Sampling ANALOG-TO-DIGITAL CONVERTER
◁
ADS8323
www.ti.com
SBAS224C – DECEMBER 2001 – REVISED JANUARY 2010
ELECTRICAL CHARACTERISTICS
At –40°C to +85°C, +DVDD = +AVDD = +5V, VREF = +2.5V, fSAMPLE = 500kSPS, and fCLK = 20 • fSAMPLE, unless otherwise
specified.
ADS8323Y
ADS8323YB (1)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNIT
RESOLUTION
Resolution
16
16
Bits
ANALOG INPUT
Full-scale input span(2)
Absolute input range
Capacitance
+IN – (–IN)
+IN
–IN
–VREF
+VREF
–VREF
+VREF
V
–0.3
AVDD + 0.3
–0.3
AVDD + 0.3
V
–0.3
AVDD + 0.3
–0.3
AVDD + 0.3
V
25
25
pF
Leakage current
±1
±1
nA
SYSTEM PERFORMANCE
No missing codes
14
15
Bits
Integral linearity error
±4
±8
±3
±6
LSB (3)
Differential linearity error
±3
±1
LSB
Offset error
±1
±2
±0.5
±1.0
mV
Gain error(4)
±0.25
±0.50
±0.12
±0.25
%FSR
At dc
70
Common-mode rejection ratio
VIN = 1VPP at 1MHz
50
Noise
60
Power-supply rejection ratio
At FFFFh output code
±3
70
dB
50
dB
60
μVRMS
±3
LSBs
SAMPLING DYNAMICS
Conversion time
1.6
1.6
μs
Acquisition time
350
350
ns
Throughput rate
500
500
kSPS
Aperture delay
10
10
ns
Aperture jitter
30
30
ps
Small-signal bandwidth
20
20
MHz
Step response
100
100
ns
Overvoltage recovery
150
150
ns
DYNAMIC CHARACTERISTICS
Total harmonic distortion(5)
VIN = 5VPP at 100kHz
–90
SINAD
VIN = 5VPP at 100kHz
81
Spurious free dynamic range
VIN = 5VPP at 100kHz
94
REFERENCE OUTPUT
–93
dB
83
dB
96
dB
Voltage
Source current
IOUT = 0
2.475
2.50
2.525
2.48
2.50
2.52
V
Static load
10
10
μA
Drift
Line regulation
REFERENCE INPUT
IOUT = 0
25
4.75V ≤ VCC ≤ 5.25V
0.6
25
ppm/°C
0.6
mV
Range
1.5
2.55
1.5
2.55
V
(1) Shaded cells indicate different specifications from ADS8322Y.
(2) Ideal input span; does not include gain or offset error.
(3) LSB means least significant bit, with VREF equal to +2.5V; 1LSB = 76μV.
(4) Measured relative to an ideal, full-scale input [+In – (–In)] of 4.9999V. Thus, gain error includes the error of the internal voltage
reference.
(5) Calculated on the first nine harmonics of the input frequency.
Copyright © 2001–2010, Texas Instruments Incorporated
Product Folder Link(s): ADS8323
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