TLV2556
12-Bit, 200 KSPS, 11 Channel, Low Power, Serial ADC with Internal Reference
TLV2556
- 12-Bit Resolution Analog-to-Digital Converter
(ADC) - Up to 200-kSPS (150-kSPS for 3 V) Throughput
Over Operating Temperature Range With 12-Bit
Output Mode - 11 Analog Input Channels
- Three Built-In Self-Test Modes
- Inherent Sample and Hold Function
- Programmable Reference Source (2.048 / 4.096 V
Internal or External) - Inherent Sample and Hold Function
- Linearity Error of ±1 LSB (Maximum)
- On-Chip Conversion Clock
- Programmable Conversion Status Output: INT
or EOC - Unipolar or Bipolar Output Operation
- Programmable Most Significant Bit (MSB) or Least
Significant Bit (LSB) First - Programmable Power Down
- Programmable Output Data Length
- SPI-Compatible Serial Interface With I/O Clock
Frequencies Up to 15 MHz (CPOL = 0,
CPHA = 0)
The TLV2556 device is a 12-bit switched-capacitor successive-approximation analog-to-digital converter (ADC). The ADC has three control inputs: chip select (CS), the input-output clock, and the address and control input (DATAIN). These inputs communicate with the serial port of a host processor or peripheral through a serial 3-state output.
In addition to the high-speed converter and versatile control capability, the device has an on-chip 14-channel multiplexer that can select any one of 11 inputs or any one of three internal self-test voltages using configuration register 1. The sample-and-hold function is automatic. At the end of conversion, when programmed as EOC, the pin 19 output goes high to indicate that conversion is complete. If pin 19 is programmed as INT, the signal goes low when the conversion is complete. The converter incorporated in the device features differential, high-impedance reference inputs that facilitate ratiometric conversion, scaling, and isolation of analog circuitry from logic and supply noise. A switched-capacitor design allows low error conversion over the full operating temperature range. An internal reference is available and its voltage level is programmable through configuration register 2 (CFGR2).
The TLV2556 is characterized for operation from TA = 40°C to +85°C.
Technical documentation
Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | TLV2556 12-Bit 200-kSPS 11-Channel Low-Power Serial ADC With Internal Reference datasheet (Rev. B) | PDF | HTML | 23 Dec 2015 |
E-book | Best of Baker's Best: Precision Data Converters -- SAR ADCs | 21 May 2015 | ||
Application note | Determining Minimum Acquisition Times for SAR ADCs, part 2 | 17 Mar 2011 | ||
Application note | Determining Minimum Acquisition Times for SAR ADCs, part 1 (Rev. A) | 10 Nov 2010 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
5-6KINTERFACE — 5-6K Interface Evaluation Module
The interface board consists of two signal conditioning sites, two serial EVM sites, and a parallel EVM site. Regardless of the interface type, all EVMs compatible with the 5-6K Interface Board have a standard analog interface and standard power connector. Three position screw terminals J1 and J2 (...)
ANALOG-ENGINEER-CALC — Analog engineer's calculator
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
TINA-TI — SPICE-based analog simulation program
Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
SOIC (DW) | 20 | Ultra Librarian |
TSSOP (PW) | 20 | Ultra Librarian |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
- Fab location
- Assembly location
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
TI E2E™ forums with technical support from TI engineers
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.