THS1206

High-Speed 6 MSPS ADC
4 Single-Ended or 2 Differential Inputs
Simultaneous Sampling of 4 Single-Ended
Signals or 2 Differential Signals or Combination of Both
Differential Nonlinearity Error: ±1 LSB
Integral Nonlinearity Error: ±1.5 LSB
Signal-to-Noise and Distortion Ratio: 68 dB at f_I = 2 MHz
Auto-Scan Mode for 2, 3, or 4 Inputs
3-V or 5-V Digital Interface Compatible
Low Power: 216 mW Max
5-V Analog Single Supply Operation
Internal Voltage References . . . 50 PPM/°C and ±5% Accuracy
Glueless DSP Interface
Parallel C/DSP Interface
Integrated FIFO
Available in TSSOP Package

Radar Applications
Communications
Control Applications
High-Speed DSP Front-End
Automotive Applications

Supply voltage range, DGND to DV_DD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.3 V to 6.5 V
                                   BGND to BV_DD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.3 V to 6.5 V
                                   AGND to AV_DD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.3 V to 6.5 V
Analog input voltage range AGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to AV_DD + 1.5 V
Reference input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 + AGND to AV_DD + 0.3 V
Digital input voltage range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to BV_DD/DV_DD + 0.3 V
Operating virtual junction temperature range, T_J . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55°C to 150°C
Operating free-air temperature range,T_A THS1206C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0°C to 70°C
                                                                 THS1206I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40°C to 85°C
                                                                 THS1206Q . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40°C to 125°C
                                                                 THS1206M . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55°C to 125°C
Storage temperature range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .260°C

The THS1206 is a CMOS, low-power, 12-bit, 6 MSPS analog-to-digital converter (ADC). The speed, resolution, bandwidth, and single-supply operation of THS1206 are suited for applications in radar, imaging, high-speed acquisition, and communications.A multistage pipelined architecture with output errorcorrection 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 THS1206 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 of THS1206 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 THS1206. The internal clock oscillator is switched off in continuous conversion mode.

The THS1206C is characterized for operation from 0°C to 70°C, the THS1206I is characterized for operation from 40°C to 85°C, the THS1206Q is characterized to meet the rigorous requirements of the automotive environment from 40°C to 125°C, and the THS1206M is characterized for operation over the full military temperature range of 55°C to 125°C.