Texas Instruments - THS1206M-5962-9957701NXD Data Converter Owner's Manual and User Guide

Fact Sheet

THS1206M / 5962-9957701NXD

SGYV084, May 2000

ADC, 12-BIT, 6 MSPS, QUAD CHAN, DSP/µP IF, W/ 16x FIFO, AUTOSCAN, LOW PWR

HIGHLIGHTS / DESCRIPTION The THS1206M is a CMOS, low-power, 12-bit, 6 MSPS analog-to-digital converter (ADC). The speed, resolution, bandwidth and single-supply operation are suited for applications in radar, imaging, high- speed acquisition and communications. A multistage pipelined architecture with output error correction logic provides for no missing codes over the full operating temperature range. Internal control registers are used to program the ADC into the desired mode. The THS1206M consists of four analog inputs, which are sampled simultaneously. These inputs can be selected individually and configured to single- ended or differential inputs. An integrated 16-word deep FIFO allows the storage of data in order to take the load off of the processor connected to the ADC. Internal reference voltages for the ADC (1.5 V and 3.5 V) are provided.

An external reference can also be chosen to suit the DC accuracy and temperature drift requirements of the application. Two different conversion modes can be selected. In single conversion mode, a single and simultaneous conversion of up to four inputs can be initiated by using the single conversion start signal (CONVST\). The conversion clock in single conversion mode is generated internally using a clock oscillator circuit. In continuous conversion mode, an external clock signal is applied to the CONV_CLK input of the THS1206M. The internal clock oscillator is switched off in continuous conversion mode.

The THS1206M is characterized for operation over the full military temperature range, –55°C to 125°C.

KEY FEATURES/BENEFITS

• High-Speed 6 MSPS ADC • Simultaneous Sampling of 4 Single-Ended

Parameter Name TLV1206M

Signals or 2 Differential Input Signals or

Combination of Both Resolution 12 Bits

• Differential Nonlinearity Error: ±1 LSB

Sample Rate 6 MSPS

• Integral Nonlinearity Error: ±1.5 LSB

Supply 3.0 V to 5.0 V

• S-to-N & Distortion Ratio:68d B at f I=2MHz • Auto-Scan Mode for 2, 3, or 4 Inputs Data-Bus Interface Parallel • 3-V or 5-V Digital Interface Compatible

Analog Inputs 4 Channels

• Low Power: 216 m W Max

• 5-V Analog Single Supply Operation Power (typ) 216 m W

• Internal Voltage References Internal or

Vref (Int/Ext)

• Glueless DSP Interface External • Parallel u C/DSP Interface

DNL (max) +/- 1 LSB

• Integrated FIFO

INL (max) +/- 1.5 LSB

• Available in TSSOP Package

APPLICATIONS

• Radar / Sonar • Communications / Control • High-Speed DSP Front-End