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PDF TDC1044AN9C Data sheet ( Hoja de datos )

Número de pieza TDC1044AN9C
Descripción Monolithic Video A/D Converter 4-Bit/ 25 Msps
Fabricantes Fairchild Semiconductor 
Logotipo Fairchild Semiconductor Logotipo



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No Preview Available ! TDC1044AN9C Hoja de datos, Descripción, Manual

TDC1044A
Monolithic Video A/D Converter
4-Bit, 25 Msps
www.fairchildsemi.com
Features
• 4-bit resolution
• 1/4 LSB non-linearity
• Sample-and-hold circuit not required
• 25 Msps conversion rate
• Selectable output format
• 16-lead DIP and 20-lead PLCC packages
Applications
• Digital communications
• Video special effects
• Radar data conversion
• Medical imaging
Description
The TDC1044A is a 25 Msps (Megasample per second) full-
parallel analog-to-digital converter, capable of converting an
analog signal with full-power frequency components up to
12.5 MHz into 4-bit digital words. Use of a sample-and-hold
circuit is not necessary for operation of the TDC1044A. All
digital inputs and outputs are TTL compatible.
The TDC1044A consists of 15 latching comparators, encod-
ing logic, and an output register. A single convert signal
controls the conversion operation. Output formats are
true/inverted binary or true/inverted offset two’s complement
codes.
Block Diagram
NMINV
NLINV
CONV
VIN
RT
R1
R
R
R
RM
R
R
R
R/2
RB
REFERENCE
RESISTOR
CHAIN
1
2
8
14
15
DIFFERENTIAL
COMPARATORS
(15)
15 TO 4
DECODER
LATCH
4
D1–D4
65-1044A-01
Rev. 1.1.2

1 page




TDC1044AN9C pdf
PRODUCT SPECIFICATION
TDC1044A
Absolute Maximum Ratings
(beyond which the device may be damaged)1
Type
Supply Voltages
Input Voltages
Output
Temperature
Parameter
VCC (measured to DGND)
VEE (measured to AGND)
AGND (measured to DGND)
CONV, NMINV, NLINV (measured to DGND)
VIN, VRT, VRB (measured to AGND)
VRT (measured to VRB)
Applied voltage (measured to DGND)2
Applied current, externally forced3,4
Short circuit duration (single output in high state to ground)
Operating, ambient
Operating, junction
Lead, soldering (10 seconds)
Storage
Min
-0.5
+0.5
-0.5
-0.5
+0.5
-2.2
-0.5
-1.0
-55
-65
Max
7.0
-7.0
+0.5
+5.5
VEE
+2.2
+5.5
+6.0
1
+125
+150
+300
+150
Unit
V
V
V
V
V
V
V
mA
sec
°C
°C
°C
°C
Notes:
1. Absolute maximum ratings are limiting values applied individually while all other parameters are within specified operating
conditions. Functional operation under any of these conditions is NOT implied.
2. Applied voltage must be current limited to specified range.
3. Forcing voltage must be limited to specified range.
4. Current is specified as positive when flowing into the device.
Operating Conditions
Parameter
VCC
VEE
VAGND
tPWL
tPWH
VIL
VIH
IOL
IOH
VRT
VRB
VRT – VRB
VIN
TA
Positive Supply Voltage (measured to DGND)
Negative Supply Voltage (measured to AGND)
Analog Ground Voltage (measured to DGND)
CONV Pulse Width, LOW
CONV Pulse Width, HIGH
Input Voltage, Logic LOW
Input Voltage, Logic HIGH
Output Current, Logic LOW
Output Current, Logic HIGH
Most Positive Reference
Most Negative Reference
Reference Differential
Input Voltage
Ambient Temperature, Still Air
Min.
4.75
-4.9
-0.1
17
17
2.0
-1.9
-2.1
0.2
VRB
0
Nom.
5.0
-5.2
0.0
0.0
-1.0
1.0
Max.
5.25
-5.5
0.1
0.8
4.0
-400
0.1
-0.1
2.0
VRT
70
Units
V
V
V
ns
ns
V
V
mA
mA
V
V
V
V
°C
5

5 Page





TDC1044AN9C arduino
PRODUCT SPECIFICATION
Notes:
TDC1044A
11

11 Page







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