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SP8503 Datasheet

(SP8503 - SP8510) 12-Bit Sampling A/D Converters

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SP8503, SP8505, SP8510
12-Bit Sampling A/D Converters
s 3µs, 5µs or 10µs Sample/Conversion
Time
s Standard ±10V and ±5V Input
s No Missing Codes Over Temperature
s AC Performance Over Temperature
71.5dB Signal–to–Noise Ratio at Nyquist
85dB Spurious–free Dynamic Range
at 49kHz
–81dB Total Harmonic Distortion at 49kHz
s Internal Sample/Hold, Reference,
Clock, and 3-State Outputs
s Low Power Dissipation: 90mW
s 28–Pin Narrow PDIP and SOIC
DESCRIPTION…
The SP85XX Series are complete 12-bit sampling A/D converters using state–of–the–art
CMOS structures. They contain a complete 12–bit successive approximation A/D converter
with internal sample/hold, reference, clock, digital interface for microprocessor control, and
three–state output drivers. Power dissipation is only 90mW. AC and DC performance are
completely specified. Sampling/conversion rates of 3µs, 5µs and 10µs are offered.
±10VIN
±5VIN
VREF Out
(1.2043V)
CS R/C HBE
Control
Logic
Clock
IBIP
CDAC.....
.....
Internal
Ref
.....
.....
SAR
Comparator
Output
Latches
And
Three
State
Drivers
BUSY
Three
State
Parallel
Output
Data
Bus
43
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SP8503 Datasheet Preview

SP8503 Datasheet

(SP8503 - SP8510) 12-Bit Sampling A/D Converters

No Preview Available !

ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation of the device
at these or any other above those indicated in the operation
sections of the specifications below is not implied. Exposure to
absolute maximum rating conditions for extended periods of time
may affect reliability.
VS to Digital Common ............................................................... +7V
Pin
26
(V )
SO
to
Pin
27
(V )
SA
....................................................
±0.3V
Analog Common to Digital Common ...................................... ±0.3V
Control Inputs to Digital Common ....................... –0.3 to VS + 0.3 V
Analog Input Voltage ........................................................... ±16.5V
Maximum Junction Temperature ........................................... 160°C
Internal Power Dissipation .................................................. 750mW
Lead Temperature (soldering, 10s) ..................................... +300°C
Thermal Resistance. ØJA:
Plastic DIP ....................................................................... 50°C/W
SOIC .............................................................................. 100°C/W
SPECIFICATIONS
(T
A
=
25°C;
Sampling
Frequency,
F,
S
=
333kHz
for
SP8503,
200kHz
for
SP8505,
100kHz
for
SP8510,
V
S
=
+5V,
unless
otherwise
specified.)
PARAMETER
MIN. TYP. MAX.
UNITS
CONDITIONS
ANALOG INPUT
Voltage Ranges
Impedance
±10V Range
±5V Range
±10V/±5V
4.7 6.7 8.7
2.7 3.9 5.1
DC PERFORMANCE
Full Scale Error
–K
Integral Linearity Error
–K
Differential Linearity Error
–K
No Missing Codes
Bipolar Zero
–K
±0.1 ±0.50
±0.35 ±0.75
±0.35 ±0.95
Guaranteed
±1 ±5
VOLTAGE REFERENCE
Voltage Output
Output Source Current
Output Resistance
1.1440 1.2043 1.2645
100
280
AC PERFORMANCE
SP8503
Conversion Time
2.6
Complete Cycle
3.0
Throughput Rate
333
Spurious-Free Dynamic Range
@ 49kHz
85
@ 161kHz
72
Total Harmonic Distortion
@ 49kHz
–81
@ 161kHz
–71
Signal to Noise Ratio (SNR)
@ 49kHz
71.5
@ 161kHz
71.5
Signal to (Noise + Distortion) Ratio
@ 49kHz
71
@ 161kHz
68
SP8505
Conversion Time
4.5
Complete Cycle
5.0
Throughput Rate
200
Spurious-Free Dynamic Range
@ 49kHz
85
@ 97kHz
77
V
k
k
%
LSB
LSB
LSB
V
µA
µs
µs
kHz
dB
dB
dB
dB
dB
dB
dB
dB
µs
µs
kHz
dB
dB
TMIN TA TMAX
TMIN TA TMAX
Externally adjustable to zero;
TMIN TA TMAX
Note 1
Externally adjustable to zero
TMIN TA TMAX
TMIN TA TMAX
Note 2
Note 2
Note 2
Note 2
Note 2
44
Free Datasheet http://www.datasheet4u.com/


Part Number SP8503
Description (SP8503 - SP8510) 12-Bit Sampling A/D Converters
Maker Sipex
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