SPT7868SIR Просмотр технического описания (PDF) - Signal Processing Technologies
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SPT7868SIR Datasheet PDF : 5 Pages
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PIN ASSIGNMENTS
GND 1
VDD 2
REFL 3
REFH 4
EXT/INT 5
VCM 6
GND 7
VDD 8
VIN 9
VIN 10
Sleep 11
CLK 12
CLK 13
OR 14
SPT7868
28L SSOP
PIN FUNCTIONS
28 D0
27 D1
26 D2
25 D3
24 D4
23 OGND
22 OVDD
21 OGND
20 OVDD
19 D5
18 D6
17 D7
16 D8
15 D9 (MSB)
Name Function
GND Analog ground
VDD
Analog +5 V
OGND Output ground
OVDD
Supply voltage for digital outputs +5 V or
+3.3 V
REFL
Reference pin low, input for external
reference, bypass with capacitor (100 nF)
when internal reference is selected.
REFH
Reference pin high, input for external
reference, bypass with capacitor (100 nF)
when internal voltage is selected.
VCM
2.5 V common mode voltage reference output
VIN
Non-inverted analog input
VIN
Inverted analog input
CLK
Clock input pin
CLK
Complement of clock input pin, internally
biased to 1.5 V; if single-ended clock is used,
bypass to GND with 100 nF
D0–D9 Digital outputs; D0 = LSB; 3.3 V/5 V
compatible
OR
Overrange bit; 3.3 V/5 V compatible
EXT/INT EXT/INT = 1, external reference used; internal
reference powered down
EXT/INT = 0, internal reference used;
internally pulled down
Sleep
Sleep = 1, normal operation; internally pulled
up
Sleep = 0, powered-down mode
ORDERING INFORMATION
PART NUMBER
SPT7868SIR
TEMPERATURE RANGE
–40 to +85 °C
PACKAGE TYPE
28L SSOP
Signal Processing Technologies, Inc. reserves the right to change products and specifications without notice. Permission is
hereby expressly granted to copy this literature for informational purposes only. Copying this material for any other use is strictly
prohibited.
WARNING – LIFE SUPPORT APPLICATIONS POLICY – SPT products should not be used within Life Support Systems without
the specific written consent of SPT. A Life Support System is a product or system intended to support or sustain life which, if it
fails, can be reasonably expected to result in significant personal injury or death.
Signal Processing Technologies believes that ultrasonic cleaning of its products may damage the wire bonding, leading to device
failure. It is therefore not recommended, and exposure of a device to such a process will void the product warranty.
SPT
5
SPT7868
8/15/00
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