SIPEX SP8528

®
SP8528
Micropower Sampling 12-Bit A/D Converter
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Low Cost
12-Bit Serial Sampling ADC
Guaranteed +1.0 LSB Max INL
Guaranteed No Missing Codes
8-Pin NSOIC Plastic Package
Low Power @ 230µA including
Automatic Shutdown: 1nA (typ)
Full differential input stage
Single Supply 3.0V to 5.5V operation
Half Duplex Digital Serial Interface
Sample Rate: 30.12µS
Pin Compatible Upgrade to LTC 1286
DESCRIPTION
The SP8528 is a very low power 12-Bit A/D converter. The SP8528 typically draws 230µA of
supply current when sampling at 33.2 kHz. Supply current drops linearly as the sample rate is
reduced. The ADC automatically powers down when not performing conversions, drawing only
leakage current. The SP8528 is available in 8-Pin NSOIC packages, specified over Commercial
and Industrial temperature ranges. The SP8528 is best suited for Battery-Operated Systems,
Portable Data Acquisition Instrumentation, Battery Monitoring, and Remote Sensing
applications. The serial port allows efficient data transfer to a wide range of microprocessors and
microcontrollers over 3 wires.
VCC
GND
Internal
VCC
REFL
12
REFL
VREF
DAC
Csample P
+IN
INPUT
SWITCHES
COMPARATOR
SAR
PARALLEL TO
SERIAL SHIFT
REGISTER
Dout
-IN
Csample N
CS/SHDN
TIMING &
CONTROL LOGIC
SCLK
SP8528 Block Diagram
SP8528DS/01
SP8528 Micropower Sampling 12-Bit A/D Converter
1
© Copyright 2000 Sipex Corporation
ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation of the device at
these ratings 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.
(TA=+25˚C unless otherwise noted) .....................................................
VCC to GND ................................................................................. 7.0V
Vin to GND .............................................................. -0.3 to VCC +0.3V
Digital input to GND ................................................ -0.3 to VCC +0.3V
Digital output to GND .............................................. -0.3 to VCC +0.3V
Operating Temperature Range
Commercial (J, K Version) ........................................... 0˚C to 70˚C
Industrial (A, B Version) .......................................... -40˚C to +85˚C
Lead Temperature (Solder 10Sec) ............................................ +300˚C
Storage Temperature .................................................. -65˚C to +150˚C
Power Dissipation to 70˚C ........................................................ 500mW
SPECIFICATIONS
Unless otherwise noted the following specifications apply for VCC=5V or 3.3V with limits applicable for Tmin to Tmax. Typical applies for Ta=25˚C.
PARAMETERS
DC ACCURACY
Resolution
Integral Linearity
J,A
K,B
VCC=5.0V
VCC=3.3V
MIN. TYP. MAX. MIN. TYP. MAX.
12
12
UNITS
Bits
+0.6 +2.0
+0.6 +1.0
+0.6 +2.0
+0.6 +1.0
LSB
LSB
Differential Linearity Error
J,A
K,B
+0.75 +2.0
+0.75 +1.0
+0.75 +2.0
+0.75 +1.0
LSB
LSB
Gain Error
J,A
K,B
+2.0 +10
+2.0 +8
+2.0 +10
+2.0 +8
LSB
LSB
Offset Error
J,A
K,B
+1.5
+1.5
+3.0
+3.0
LSB
LSB
ANALOG INPUT
Input Signal FS Range
Input Impedance
On Channel
Off Channel
Input Bias Current
Analog Input Range
0
+5
+3
Vref
0
20
100
3
100
.001 1
-.05
VCC+.05 -.05
20
100
3
100
.001 1
VCC+.05
pF
MΩ
pF
MΩ
µA
Volts
clock
cycles
clock
cycles
kHz
µS
µS
µS
1.5
1.5
Conversion Time
12
12
SP8528DS/01
33.2
2.0
.9
.9
+8
+5
No Missing Codes
Vref
CONVERSION SPEED
Sample Time
Complete Cycle
Clock Period
Clock High Time
Clock Low Time
CONDITIONS
22.2
3.0
1.4
1.4
SP8528 Micropower Sampling 12-Bit A/D Converter
2
In Parallel with 100MΩ
In Parallel with 100MΩ
See Timing Diagrams
See Timing Diagrams
See Timing Diagrams
See Timing Diagrams
See Timing Diagrams
See Timing Diagrams
© Copyright 2000 Sipex Corporation
SPECIFICATIONS (cont.)
Unless otherwise noted the following specifications apply for VCC=5V or 3.3V with limits applicable for Tmin to Tmax. Typical applies for Ta=25˚C.
PARAMETERS
DIGITAL INPUTS
Input Low Voltage, VIL
Input High Voltage, VIH
Input Current IIN
Input Capacitance
DIGITAL OUTPUTS
Data Format
Data Coding
VOH
VOL
VCC=5.0V
VCC=3.3V
MIN. TYP. MAX. MIN. TYP. MAX. UNITS
0.8
2.0
0.8
2.0
+2.0
+2.0
3.0
3.0
4.0
2.0
0.4
0.4
Volts
Volts
µA
pF
Volts
Volts
AC ACCURACY
Spurious free Dynamic
Range (SFDR)
86
86
dB
Total Harmonic Distortion (THD)
-83
-80
dB
Signal to Noise &
Distortion (SINAD)
73
72
dB
73.5
72.5
dB
Signal to Noise (SNR)
SAMPLING DYNAMICS
Acquisition Time to 0.01%
-3dB Small Signal BW
Aperture Delay
Aperture Jitter
Common-Mode Rejection Ratio
POWER SUPPLIES
VCC
ICC
2
70
3
4
20
150
80
3
70
4.5
3
30
150
80
CONDITIONS
VDD=5V +5%
VDD=5V +5%
See Timing Diagram
VDD=5V ±5%, IOH=-0.4mA
VDD=5V ±5%, IOL=+1.6mA
For all FFT’s
(Full Differential Mode)
If VCC = 5V
fsample = 31.25kHz
fin = 15kHz
If VCC = 3.3V
fsample = 20.8kHz
fin = 5kHz
µs
MHz
nS
pS
dB
fCM = 15kHz @ 5 volts
2.8kHz @ 3.3 volts
Volts
+3.0 +5.0 +5.5 +3.0 +3.3 +5.5
Operation Mode
230
400
80
300
µA
(CS=0) 33.2kHz, 5V conversion
rate. 22.2kHz 3.3 volts
Shutdown Mode
.001
0.5
.001
0.5
µA
(CS=1)
Power Dissipation
Operating Mode
Shutdown Mode
1.15
.005
2
10
0.26 0.99
.003 6.6
TEMPERATURE RANGE
Commercial
Industrial
Storage
SP8528DS/01
0˚ to +70˚C
-40˚ to +85˚C
-65˚ to +150˚C
0˚ to +70˚C
-40˚ to +85˚C
-65˚ to +150˚C
mW
µW
˚C
˚C
˚C
SP8528 Micropower Sampling 12-Bit A/D Converter
3
© Copyright 2000 Sipex Corporation
SPECIFICATIONS (cont.)
Recommended Operating Conditions
MIN.
+3.0
VCC=5.0V
TYP. MAX.
+5.0
+5.5
PARAMETERS
Supply Voltage
fCLK
Clock Frequency
tCVC
Total Cycle Time
30.1
45.15
µS
tsuCS
Setup Time CSv
Before CLK^
100
150
nS
tWHCLK
CLK High Time
.9
1.4
µS
TWHCLK
CLK Low Time
.9
1.4
µS
TWHCS
CS High Time between
Data Transfers Cycles
100
150
nS
500
SP8528
GND 4
kHz
Pin 1- VREF - Reference Voltage
VREF 1 ▼
-IN 3
333
UNITS
Volts
PIN ASSIGNMENTS
PIN DESCRIPTION
+IN 2
MIN.
+3.0
VCC=3.3V
TYP. MAX.
+3.3
+5.5
SYMBOL
VCC
8
VCC
7
SCLK
6
DOUT
5
CS/SHDN
Pin 2- +IN - Positive Input
Pin 3- -IN - Negative Input
Pin 4- GND - Ground
Pin 5- CS/SHDN - Chip Select Bar/Shutdown
Pin 6 - DOUT - Data Out
Pin 7- SCLK - Serial Clock
Pin 8- VCC - Supply
SP8528DS/01
SP8528 Micropower Sampling 12-Bit A/D Converter
4
© Copyright 2000 Sipex Corporation
DESCRIPTION
The device features automatic shutdown and
will shutdown to a +0.5 µA power level as CS
is brought high (de-selected). Power is proportional
to conversion duty cycle and varies from 230
µA at 30.1 µS (Duty cycle = 100%) to
5.75 µA at 1.2 ms (Duty cycle = 2.5%).
The SP8528 is a 12 bit full differential sampling
ADC with a serial data interface. The ADC
samples and converts 12 bits of data in 30.1 µS
with a 5V supply voltage applied. The SP8528
will also operate at a 3.3V supply at 45.15 µS
throughput. The device automatically shuts
down to a +0.5 µA (MAX) level as soon as the
chip is deselected (CS=1). Serial data output is
available in an MSB first or LSB first format.
Examples:
Conversion rate ICC @ 5V Duty Cycle
30.1 µS
230 µA
100%
60.2 µS
115 µA
50%
120 µS
57.5 µA
25%
1.20 mS
5.75 µA
2.5%
The device can be configured such that it
delivers serial data MSB first requiring 15 clock
periods for a full conversion. Alternately, the
device can be programmed to deliver 12 bits of
data MSB first, followed by the same 12 bits of
data LSB first. This sequence will require 26
clock periods to complete. Please refer to the
timing diagram.
FEATURES
The input sampling scheme is full differential,
where the maximum full scale range is VREF. The
signal is applied between +IN and -IN. The
signals applied at each input may both be
dynamic. This is in contrast with pseudo
differential devices which must have input low
held at a constant level during conversion. The
converter will provide significant common mode
rejection because of the full differential
sampling. Each input independently must
remain between ground and Vcc to avoid
clamping the inputs. For proper conversion the
differential input (+IN - -IN) must be less than
or equal to Vref.
Circuit Operation
The SP8528 is a SAR converter with full
differential sampled front end, capacitive DAC,
precision comparator, Successive Approximations
Register, control logic and data output register.
After the input is sampled and held the
conversion process begins. The DAC MSB is
set and its output is compared with the signal
input, if the DAC output is less than the input,
the comparator outputs a one which is latched
into the SAR and simultaneously made
available at the ADC serial output pin. Each bit
is tested in a similar manner until the SAR
contains a code which represents the signal input
to within +1/2 LSB. During this process the SAR
content has been shifted out of the ADC serially.
If the MSB first format was chosen, the data will
appear at the DOUT pin MSB through LSB in 15
clock periods. If LSB first data is desired, 26
SCLK’s are needed to
complete a transfer. The LSB
OUTPUT
appears at clock 15, with
CODE
successive bits clocked out
until the MSB appears at
000000000000
clock 26. All subsequent
000000000001
SCLK’s with CS = 0 shift out
100000000000
0. Note that the Chip Select
111111111110
Bar pin must be toggled high
111111111111
The device uses a capacitive DAC architecture
which provides the sampling behavior. This
results in full Nyquist performance at the
fastest throughput rate (33.2kHz) the device is
capable of.
The power supply voltage is variable from 3.0V
to 5.5V which provides supply flexibility. At the
5.0V supply level, conversion plus sampling
time is 30.1 µS and supply current is 230 µA
(1.15 mW). With a 3.3V supply the conversion
plus sampling time is 45.15 µS and current is
reduced to 80 µA (0.26 mW).
ADC TRANSFER FUNCTION
INPUT VOLTAGE
(+IN - -IN)
INPUT VOLTAGE
AT VREF = 5V
0 LSB
1 LSB
2048 LSB
4094 LSB
4095 LSB
0V
0.00122V
2.5000V
4.9976V
4.9988V
SP8528DS/01
SP8528 Micropower Sampling 12-Bit A/D Converter
5
© Copyright 2000 Sipex Corporation
between conversions. The DOUT pin will be in a
high impedance state whenever Chip Select Bar
is high. After Chip Select Bar has been toggled
and brought low again, the converter begins a
new conversion.
A circuit board layout which includes separate
analog and digital ground planes will prevent
the coupling of noise into sensitive converter
circuits and will help to preserve the dynamic
performance of the device. In single ended
mode, the analog input signal should be
referenced to the ground pin of the converter.
This prevents any voltage drops that occur in
the power supply's common return from
appearing in series with the input signal.
Single Ended or Full
Differential Operation
The SP8528 has a balanced full differential front
end. The SP8528 can be used in this manner, or
it can be used in single-ended circuits as well.
For single-ended systems, simply tie the -IN to
the Reference Low of the input signal, which is
allowed to range from 0V to VCC. For a full
differential sampling configuration, both inputs
are sampled and held simultaneously. Because
of the balanced differential sampling, dynamic
common mode noise riding along the input
signal is cancelled above and beyond DC noise.
This is a significant improvement over psuedodifferential sampling schemes, where the low
side of the input must remain constant during
the conversion, and therefore only DC noise (i.e.
signal offset) is cancelled. If AC common mode
noise is left to be converted along with the
differental component, the output signal will be
degraded.
In full differential mode, the high and low side
board traces should run close to each other, with
the same layout. This will insure that any noise
coupling will be common mode, and cancelled
by the converters (patent pending) full differential
architecture.
If separate analog and digital ground planes are
not possible, care should be used to prevent
coupling between analog and digital signals. If
analog and digital lines must cross, they should
do so at right angles. Parallel analog and digital
lines should be separated by a circuit board trace
which is connected to common.
The reference pin on the SP8528 should be kept
as clean as possible. A noise signal of 1.22mV
(for VREF = 5.0V) will produce 1 lsb of error
in the output code. For convenience, the VREF
pin can be tied to the VCC pin, but now the same
care should be taken with the VCC pin as with
the VREF pin. Whether or not VCC is tied to
VREF, the VCC pin should always be bypassed
to the GROUND pin with a parallel combination
of a 6.8µF tantalum and a 0.1µF ceramic
capacitor. To maintain maximum system
accuracy, the supply connected to the VCC pin
should be well isolated from digital supplies and
wide load variations. A separate conductor from
the supply regulator to the A/D converter will
limit the effects of digital switching elsewhere
in the system. Power supply noise can degrade
the converters performance. Especially corrupting
are noise and spikes from a switching power
supply.
Full differential sampling allows flexibility in
converting the input signal. If the signal lowside is already tied to a ground elsewhere in the
system, it can be hardwired to the low side
input (i.e., -IN) which acts as a signal ground
sense, breaking a potential ground loop. It is also
possible to drive the inputs balanced differential,
as long as both inputs are within the power rails.
In this configuration, both the high and low
signals have the same impedance looking back
to ground, and therefore pick up the same noise
along the physical path from signal source (i.e.,
sensor, transducer, battery) to the converter. This
noise becomes common mode, and is cancelled
out by the differential sampling of the SP8528.
Layout Considerations
To preserve the high resolution and linearity of
the SP8528 attention must be given to circuit
board layout, ground impedance and bypassing.
SP8528DS/01
To avoid introducing distortion when driving the
A/D converter input, the input signal source
should be able to charge the SP8528's equivalent
20 pF of input capacitance from zero volts to
the signal level in 1.5 clock periods.
SP8528 Micropower Sampling 12-Bit A/D Converter
6
© Copyright 2000 Sipex Corporation
Tcyc
POWER
DOWN
POWER UP
PD
PU
Twhcs
CSN
1
10
15
X
X
SCLK
HI-Z
Dout
D11
D9
D7
D5
D3
D1
HI-Z
0
D10
D8
D6
D4
D2
D0
Tconv
Tsample
FIGURE 1. MSB FIRST TIMING
Tcyc
PD
POWER UP
POWER DOWN
PU
Twhcs
CSN
1
SCLK
Dout
15
10
20
25 26
X
X
HI-Z
D11
D9
D7
D5
D3
D1
D1
D3
D5
D7
D9
D11
0
0
D10
D8
D6
D4
D2
D0
D2
D4
D6
D8
HI-Z
D10
Tconv
Tsample
FIGURE 2. LSB FIRST TIMING
Tsucs
Tdis
CSN
Tscsu
Ten
Twhclk Twlclk
Thdo
Tclk
SCLK
Dout
HI-Z
Tf
Tr
10% - 90%
FIGURE 3. DETAILED TIMING
SP8528 Timing Diagram
SP8528DS/01
SP8528 Micropower Sampling 12-Bit A/D Converter
7
© Copyright 2000 Sipex Corporation
Icc vs. Sampling Rate
(Clock Rate = 333kHz)
Vcc = 3.3V
90.0
Icc vs. Sampling Rate
(Clock Rate = 500kHz)
Vcc = 5V
250.0
80.0
200.0
60.0
50.0
Icc (µA)
Icc (µA)
70.0
40.0
30.0
150.0
100.0
20.0
50.0
10.0
0.0
10
100
1000
10000
conversion time (µs)
0.0
100000
10
100
Vcc = 5V
Vref = 5V
1000
10000
conversion time (µs)
100000
Vcc = 3.3V
Vref = 3.3V
+1
+1
INLE
INLE
-1
+1
-1
+1
DNLE
DNLE
-1
-1
0
4095
0
4095
Vcc = 5V
Vref = 3V
+1
Input CMRR
Vcc = 5V
100
INLE
CMRR (dB)
80
-1
+1
DNLE
60
40
20
0
10.0E+0 100.0E+0 1.0E+3
10.0E+3 100.0E+3 1.0E+6
common mode frequency(Hz)
-1
0
SP8528DS/01
4095
SP8528 Micropower Sampling 12-Bit A/D Converter
8
© Copyright 2000 Sipex Corporation
For all plots, VCC = 5V, Conversion Rate = 31.25kHz.
Gain vs. Temperature
Icc vs. Temperature
250
6.00
240
4.00
2.00
LSB
µA
230
220
0.00
-2.00
210
-4.00
200
-50
-25
0
25
50
temperature (C)
75
100
-6.00
-50
125
-25
Offset vs. Temperature
LSB
2
0
-2
0
-4
-25
0
25
50
75
temperature (C)
100
frequency
SNR = 73.01 dB
THD = -79.54 dB
SINAD = 72.14 dB
SFDR = 84.66 dB
Vinamp = -0.47 dB
125
80
80
70
60
10000
input frequency (Hz)
60
50
1000
100000
10000
input frequency (Hz)
100000
Total Harmonic Distortion
-50
80
-60
THD (dB)
SNR (dB)
Signal to Noise Ratio
70
60
10000
input frequency (Hz)
15.6kHz
70
90
SP8528DS/01
125
SINAD
90
SINAD (dB)
SFDR (dB)
Spurious Free Dynamic Range
90
50
1000
100
Spectral Density (dB)
4
50
1000
25
50
75
temperature (C)
FFT 20 dB/div
6
-6
-50
0
-70
-80
-90
1000
100000
SP8528 Micropower Sampling 12-Bit A/D Converter
9
10000
input frequency (Hz)
100000
© Copyright 2000 Sipex Corporation
PACKAGE: PLASTIC
DUAL–IN–LINE
(NARROW)
E1 E
D1 = 0.005" min.
(0.127 min.)
A1 = 0.015" min.
(0.381min.)
D
A = 0.210" max.
(5.334 max).
C
A2
L
B1
B
e = 0.100 BSC
(2.540 BSC)
Ø
eA = 0.300 BSC
(7.620 BSC)
ALTERNATE
END PINS
(BOTH ENDS)
DIMENSIONS (Inches)
Minimum/Maximum
(mm)
8–PIN
14–PIN
16–PIN
18–PIN
20–PIN
22–PIN
A2
0.115/0.195
(2.921/4.953)
0.115/0.195
(2.921/4.953)
0.115/0.195
(2.921/4.953)
0.115/0.195
(2.921/4.953)
0.115/0.195
(2.921/4.953)
0.115/0.195
(2.921/4.953)
B
0.014/0.022
(0.356/0.559)
0.014/0.022
(0.356/0.559)
0.014/0.022
(0.356/0.559)
0.014/0.022
(0.356/0.559)
0.014/0.022
(0.356/0.559)
0.014/0.022
(0.356/0.559)
B1
0.045/0.070
(1.143/1.778)
0.045/0.070
(1.143/1.778)
0.045/0.070
(1.143/1.778)
0.045/0.070
(1.143/1.778)
0.045/0.070
(1.143/1.778)
0.045/0.070
(1.143/1.778)
C
0.008/0.014
(0.203/0.356)
0.008/0.014
(0.203/0.356)
0.008/0.014
(0.203/0.356)
0.008/0.014
(0.203/0.356)
0.008/0.014
(0.203/0.356)
0.008/0.014
(0.203/0.356)
D
0.355/0.400
0.735/0.775
0.780/0.800
0.880/0.920
0.980/1.060
1.145/1.155
(9.017/10.160) (18.669/19.685) (19.812/20.320) (22.352/23.368) (24.892/26.924) (29.083/29.337)
E
0.300/0.325
(7.620/8.255)
0.300/0.325
(7.620/8.255)
0.300/0.325
(7.620/8.255)
0.300/0.325
(7.620/8.255)
0.300/0.325
(7.620/8.255)
0.300/0.325
(7.620/8.255)
E1
0.240/0.280
(6.096/7.112)
0.240/0.280
(6.096/7.112)
0.240/0.280
(6.096/7.112)
0.240/0.280
(6.096/7.112)
0.240/0.280
(6.096/7.112)
0.240/0.280
(6.096/7.112)
L
0.115/0.150
(2.921/3.810)
0.115/0.150
(2.921/3.810)
0.115/0.150
(2.921/3.810)
0.115/0.150
(2.921/3.810)
0.115/0.150
(2.921/3.810)
0.115/0.150
(2.921/3.810)
Ø
0°/ 15°
(0°/15°)
0°/ 15°
(0°/15°)
0°/ 15°
(0°/15°)
0°/ 15°
(0°/15°)
0°/ 15°
(0°/15°)
0°/ 15°
(0°/15°)
SP8528DS/01
SP8528 Micropower Sampling 12-Bit A/D Converter
10
© Copyright 2000 Sipex Corporation
PACKAGE: PLASTIC
SMALL OUTLINE (SOIC)
(NARROW)
E
H
h x 45°
D
A
Ø
e
B
A1
L
DIMENSIONS (Inches)
Minimum/Maximum
(mm)
SP8528DS/01
8–PIN
14–PIN
16–PIN
A
0.053/0.069
(1.346/1.748)
0.053/0.069
(1.346/1.748)
0.053/0.069
(1.346/1.748)
A1
0.004/0.010
(0.102/0.249
0.004/0.010
(0.102/0.249)
0.004/0.010
(0.102/0.249)
B
0.014/0.019
(0.35/0.49)
0.013/0.020
(0.330/0.508)
0.013/0.020
(0.330/0.508)
D
0.189/0.197
(4.80/5.00)
0.337/0.344
0.386/0.394
(8.552/8.748) (9.802/10.000)
E
0.150/0.157
(3.802/3.988)
0.150/0.157
(3.802/3.988)
0.150/0.157
(3.802/3.988)
e
0.050 BSC
(1.270 BSC)
0.050 BSC
(1.270 BSC)
0.050 BSC
(1.270 BSC)
H
0.228/0.244
(5.801/6.198)
0.228/0.244
(5.801/6.198)
0.228/0.244
(5.801/6.198)
h
0.010/0.020
(0.254/0.498)
0.010/0.020
(0.254/0.498)
0.010/0.020
(0.254/0.498)
L
0.016/0.050
(0.406/1.270)
0.016/0.050
(0.406/1.270)
0.016/0.050
(0.406/1.270)
Ø
0°/8°
(0°/8°)
0°/8°
(0°/8°)
0°/8°
(0°/8°)
SP8528 Micropower Sampling 12-Bit A/D Converter
11
© Copyright 2000 Sipex Corporation
ORDERING INFORMATION
Model ........................................................ Linearity (LSB) ..................... Temperature Range ............................................................... Package
SP8528BN .......................................................... ±1.0 .................................... –40˚C to +85˚C .............................................. 8-pin, 0.3" Plastic DIP
SP8528KN .......................................................... ±1.0 ..................................... –0˚C to +70˚C ............................................... 8-pin, 0.3" Plastic DIP
SP8528BS .......................................................... ±1.0 .................................... –40˚C to +85˚C ......................................... 8-pin, 0.15" Plastic SOIC
SP8528KS .......................................................... ±1.0 ..................................... –0˚C to +70˚C .......................................... 8-pin, 0.15" Plastic SOIC
SP8528AN .......................................................... ±2.0 .................................... –40˚C to +85˚C .............................................. 8-pin, 0.3" Plastic DIP
SP8528JN ........................................................... ±2.0 ..................................... –0˚C to +70˚C ............................................... 8-pin, 0.3" Plastic DIP
SP8528AS .......................................................... ±2.0 .................................... –40˚C to +85˚C ......................................... 8-pin, 0.15" Plastic SOIC
SP8528JS ........................................................... ±2.0 ..................................... –0˚C to +70˚C .......................................... 8-pin, 0.15" Plastic SOIC
Please consult the factory for pricing and availability on a Tape-On-Reel option.
Corporation
SIGNAL PROCESSING EXCELLENCE
Sipex Corporation
Headquarters and
Sales Office
22 Linnell Circle
Billerica, MA 01821
TEL: (978) 667-8700
FAX: (978) 670-9001
e-mail: [email protected]
Sales Office
233 South Hillview Drive
Milpitas, CA 95035
TEL: (408) 934-7500
FAX: (408) 935-7600
Sipex Corporation reserves the right to make changes to any products described herein. Sipex does not assume any liability arising out of the
application or use of any product or circuit described hereing; neither does it convey any license under its patent rights nor the rights of others.
SP8528DS/01
SP8528 Micropower Sampling 12-Bit A/D Converter
12
© Copyright 2000 Sipex Corporation