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Part Number: TMC1173A
Description: The TMC1173A/1273 analog-to-digital (A/D) converter employs a two-step architecture to convert analog ...
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TMC1173A
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DataSheet
General Description
TMC1173A General Description
The TMC1173A/1273 analog-to-digital (A/D) converter employs a two-step architecture to convert analog signals into 8-bit digital words at sample rates of up to 20 Msps (Megasamples per second). An integral Track/Hold circuit delivers excellent performance on signals with full-scale frequency components up to 5 MHz. The innovative architecture and submicron CMOS technology limit typical power dissipation to 15 mW.
The TMC1173A/1273 operates from a single +2.7 to +3.6 Volt power supply and has internal voltage reference resistors for self-bias operation. Input capacitance is very low, simplifying or eliminating input driving amplifiers. All digital three-state outputs are 3V TTL- and CMOS-compatible.
The TMC1173A and TMC1273 share their core architectures; the TMC1273 adds two overrange outputs that indicate when the analog input signal is beyond the conversion range.
The TMC1173A/1273 is available in 24-pin plastic DIP, 24-lead plastic SOIC, and 28-lead J-lead PLCC packages. Performance specifications are guaranteed from -20°C to 75°C.
TMC1173A Maximum Ratings
| Parameter | Conditions |
Min |
Max |
Unit |
| Power Supply Voltages | ||||
| VDDA | Measured to AGND |
-0.5 |
7.0 |
V |
| VDDD | Measured to DGND |
-0.5 |
7.0 |
V |
| VDDA | Measured to VDDD |
-0.5 |
0.5 |
V |
| AGND | Measured to DGND |
-0.5 |
0.5 |
V |
| Digital Inputs | ||||
| Applied Voltage2 | Measured to DGND |
-0.5 |
VDDD + 0.5 |
V |
| Forced Current3,4 |
-10.0 |
10.0 |
mA | |
| Analog Inputs | ||||
| Applied Voltage2 | Measured to DGND |
-0.5 |
VDDD + 0.5 |
V |
| Forced Current3,4 |
-6.0 |
10.0 |
mA | |
| Outputs | ||||
| Applied Voltage2 | Measured to DGND |
-0.5 |
VDDD + 0.5 |
V |
| Forced Current3,4 |
-6.0 |
6.0 |
mA | |
| Short Circuit Duration | Single output in HIGH state to ground |
1 |
sec | |
| Temperature | ||||
| Operating, ambient |
-20 |
110 |
||
| Junction |
150 |
|||
| Storage |
-65 |
150 |
||
| Lead Soldering | 10 seconds |
300 |
||
| Vapor Phase Soldering | 1 minute |
200 |
||
Notes:
1. Functional operation under any of these conditions is NOT implied. Performance and reliability are guaranteed only if.
Operating Conditions are not exceeded.
2. Applied voltage must be current limited to specified range.
3. Forcing voltage must be limited to specified range.
4. Current is specified as conventional current flowing into the devic
TMC1173A Features
• 8-bit resolution
• 20 Msps conversion rate
• Low power: 15mW @ 5 Msps
• Integral track/hold
• Integral and differential linearity error 0.5 LSB
• Single +3V power supply
• Three-state TTL/CMOS-compatible outputs
• Low cost
• 20 Msps conversion rate
• Low power: 15mW @ 5 Msps
• Integral track/hold
• Integral and differential linearity error 0.5 LSB
• Single +3V power supply
• Three-state TTL/CMOS-compatible outputs
• Low cost
TMC1173A Typical Application
• Video digitizing
• VGA and CCD digitizing
• LCD projection panels
• Image scanners
• Personal computer video boards
• Multimedia systems
• Low cost, high speed data conversion
• VGA and CCD digitizing
• LCD projection panels
• Image scanners
• Personal computer video boards
• Multimedia systems
• Low cost, high speed data conversion
TMC1173A Connection Diagram
TMC1173A
PDF/DataSheet Download
- Datasheet: TMC1173A
- File Size: 101127 KB
- Manufacturer: Fairchild Semiconductor
- Click here to Download
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