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Home - Analog & Interface Products - Mixed Signal Devices - Sigma Delta - TC3400 Device, download datasheet
Download Datasheets TC3400 Device |
The TC3400 is a low cost, low power analog-to-digital converter based on Microchip’s Sigma-Delta technology. It will perform 16-bit conversions (15-bit plus sign) at up to eight per second. The TC3400 is optimized for use as a microcontroller peripheral in low cost, battery operated systems. A voltage reference is included, or an external reference can be used. The TC3400’s 2-wire MicroPort™ digital interface is used for starting conversions and for reading out the data. Driving the SCLK line low starts a conversion. After the conversion starts, each additional falling edge (up to six) detected on SCLK for t4 seconds reduces the A/D resolution by one bit and cuts conversion time in half. After a conversion is completed, clocking the SCLK line puts the MSB through LSB of the resulting data word onto the SDAT line, much like a shift register. The part automatically sleeps when not performing a data conversion. The TC3400 is available in 8-Pin PDIP and 8-Pin SOIC packages.
Datasheet and Other Documentation |
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Specification Chart
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Resolution (bits) |
Maximum Sampling Rate (conv/sec) |
# of Input Channels |
Interface |
Input Voltage Range (V) |
Typical Supply Current (µA) |
Typical INL (%FSR) |
10 to 16 |
512 |
1 Diff |
2-Wire |
1.8 to 5.5 |
260 |
0.0038 |
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Additional Features |
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16-Bit Resolution at Eight Conversions Per Second,
Adjustable Down to 10-Bit Resolution at 512 Conversions Per Second
1.8V – 5.5V Operation
Low Power Operating 260A
Sleep 0.75A
MicroPort Serial Bus Requires Only Two Interface Lines
Uses Internal or External Reference
Automatically Enters Sleep Mode When Not In Use
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Package Options |
8 PDIP(P), 8 SOIC(S) |
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