Datasheet

ADS8319
www.ti.com SLAS600A –MAY 2008–REVISED SEPTEMBER 2013
SPECIFICATIONS
T
A
= –40°C to 85°C, +VA = 5 V, +VBD = 5 V to 2.375 V, V
ref
= 4 V, f
SAMPLE
= 500 kHz (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
ANALOG INPUT
Full-scale input span
(1)
+IN – (–IN) 0 V
ref
V
+IN – 0.1 V
ref
+ 0.1
Operating input range
–IN – 0.1 0.1
Input capacitance 59 pF
Input leakage current During acquisition 1000 pA
SYSTEM PERFORMANCE
Resolution 16 Bits
No missing codes 16 Bits
ADS8319I –2.5 ±1.2 2.5
INL Integral linearity
(2)
LSB
(3)
ADS8319IB –1.5 ±1 1.5
ADS8319I –1 ±0.65 1.5
DNL Differential linearity At 16-bit level LSB
(3)
ADS8319IB –1 ±0.5 1
E
O
Offset error
(4)
–1.5 ±0.3 1.5 mV
E
G
Gain error –0.03 ±0.0045 0.03 %FSR
With common mode input signal = 200 mV
p-p
at 500
CMRR Common-mode rejection ratio 78 dB
kHz
PSRR Power supply rejection ratio At FFF0h output code 80 dB
Transition noise 0.5 LSB
SAMPLING DYNAMICS
+VBD = 5 V 1400
t
CONV
Conversion time ns
+VBD = 3 V 1400
+VBD = 5 V 600
Acquisition time ns
+VBD = 3 V 600
Maximum throughput rate with or
0.5 MHz
without latency
Aperture delay 2.5 ns
Aperture jitter, RMS 6 ps
Step response 600 ns
Settling to 16-bit accuracy
Overvoltage recovery 600 ns
(1) Ideal input span, does not include gain or offset error.
(2) This is endpoint INL, not best fit.
(3) LSB means least significant bit
(4) Measured relative to actual measured reference.
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