MC10319 Datasheet, PDF (1/20 Pages) Motorola, Inc – High Speed8-Bit Analog-to-Digital Converter

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High Speed 8-Bit
Analog-to-Digital Converter
MC10319
The MC10319 is an 8–bit high speed parallel flash A/D converter. The
device employs an internal Grey Code structure to eliminate large output
errors on fast slewing input signals. It is fully TTL compatible, requiring a
+ 5.0 V supply and a wide tolerance negative supply of – 3.0 to – 6.0 V.
Three–state TTL outputs allow direct drive of a data bus or common I/O
memory.
The MC10319 contains 256 parallel comparators across a precision input
reference network. The comparator outputs are fed to latches and then to an
encoder network, to produce an 8–bit data byte plus an overrange bit. The
data is latched and converted to 3–state LS–TTL outputs. The overrange bit
is always active to allow for either sensing of the overrange condition or ease
of interconnecting a pair of devices to produce a 9–bit A/D converter.
Applications include video display and radar processing, high speed
instrumentation and TV broadcast encoding.
• Internal Grey Code for Speed and Accuracy, Binary Outputs
• 8–Bit Resolution/9–Bit Typical Accuracy
• Easily Interconnected for 9–Bit Conversion
• 3–State LS–TTL Outputs with True/Complement Enable Inputs
• 25 MHz Sampling Rate
• Wide Input Range: 1.0 to 2.0 Vpp, between ± 2.0 V
• Low Input Capacitance: 50 pF
• Low Power Dissipation: 618 mW
• No Sample/Hold Required for Video Bandwidth Signals
• Single Clock Cycle Conversion
HIGH SPEED
8–BIT ANALOG–TO–DIGITAL
FLASH CONVERTER
SEMICONDUCTOR
TECHNICAL DATA
P SUFFIX
PLASTIC PACKAGE
CASE 709
DW SUFFIX
PLASTIC PACKAGE
CASE 751F
(SO–28L)
PIN CONNECTIONS
(P only)
Analog
Input
Vin
(14)
VRT
(24)
VRM
(1)
VRB
(23)
VCC(A)
(15)
Representative Block Diagram
Logic
GND
VEE
VCC(D)
(2, 12,
(13)
(11, 17)
16, 22)
Bias
MC10319
Bias
256
Comparators
Differential
Latch
Array
Grey Code
Translator
Output
Latches
and
ECL–TTL
Converters
Over–
Range
(3)
D7 (4)
D6 (5)
D5 (6)
D4 (7)
D3 (8)
D2 (9)
D1 (10)
D0 (21)
Clock
(18)
(19)
Enable
(20)
Enable
MOTOROLA ANALOG IC DEVICE DATA
VRM ₁
GND 2
OVER–
RANGE
3
D7 4
D6 5
D5 6
D4 7
D3 8
D2 9
D1 10
VCC(D) ₁₁
GND 12
24 ^VRT
23 VRB
22 GND
21 D0
20 EN
19 EN
18 CLOCK
17 VCC(D)
16 GND
15 VCC(A)
14 VIN
13 ^VEE
ORDERING INFORMATION
Device
Operating
Temperature Range Package
MC10319DW
MC10319P
TA = 0° to +70°C
SO–28L
Plastic
© Motorola, Inc. 1996
Rev 0
1