Datasheet


SLAS390B − JUNE 2003 − REVISED FEBRUARY 2005
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3
SPECIFICATIONS
T
A
= −40°C to 85°C, +VA = 5 V, +VBD = 3 V or 5 V, V
ref
= 4.096 V, f
SAMPLE
= 750 kHz (unless otherwise noted)
PARAMETER
TEST
ADS8371IB ADS8371I
UNIT
PARAMETER
TEST
CONDITIONS
MIN TYP MAX MIN TYP MAX
UNIT
Analog Input
Full-scale input voltage (see Note 1) +IN − −IN 0 V
ref
0 V
ref
V
Absolute input voltage
+IN −0.2 V
ref
+ 0.2 −0.2 V
ref
+ 0.2
V
Absolute input voltage
−IN −0.2 0.2 −0.2 0.2
V
Input capacitance 45 45 pF
Input leakage current 1 1 nA
System Performance
Resolution 16 16 Bits
No missing codes 16 16 Bits
Integral linearity (see Notes 2 and 3) −1.5 −0.8/0.9 1.5 −2.5 2.5 LSB
Differential linearity −1 −0.4/0.6 1 −1 1.5 LSB
Offset error −0.75 ±0.25 0.75 −1 ±0.5 1 mV
Gain error (see Note 4) −0.075 0.075 −0.15 0.15 %FS
Noise 60 60 µV RMS
Power supply rejection ratio
At 3FFFFh
output code
75 75 dB
Sampling Dynamics
Conversion time 1.13 1.13 µs
Acquisition time 0.2 0.2 µs
Throughput rate 750 750 kHz
Aperture delay 4 4 ns
Aperture jitter 15 15 ps
Step response 150 150 ns
Over voltage recovery 150 150 ns
(1)
Ideal input span, does not include gain or offset error.
(2)
LSB means least significant bit
(3)
This is endpoint INL, not best fit.
(4)
Measured relative to an ideal full-scale input (+IN − −IN) of 4.096 V