THS1209 12 Bit, 8 MSPS ADC Dual Ch., DSP/uP Interface, Channel Autoscan, Low Power | TI.com

THS1209 (ACTIVE) 12 Bit, 8 MSPS ADC Dual Ch., DSP/uP Interface, Channel Autoscan, Low Power

 

Description

The THS1209 is a CMOS, low-power, 12-bit, 8 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 allow for programming the ADC into the desired mode. The THS1209 consists of two analog inputs, which are sampled simultaneously. These inputs can be selected individually and configured to single-ended or differential inputs. 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.

The THS1209C is characterized for operation from 0°C to 70°C, and the THS1209I is characterized for operation from –40°C to 85°C.

Features

  • Simultaneous Sampling of 2 Single-Ended Signals or 1 Differential Signal
  • Signal-to-Noise Ratio: 68 dB at fI = 2 MHz
  • Differential Nonlinearity Error: ±1 LSB
  • Integral Nonlinearity Error: ±1.5 LSB
  • Auto-Scan Mode for 2 Inputs
  • 3-V or 5-V Digital Interface Compatible
  • Low Power: 218 mW Max at 5 V
  • Power Down: 1 mW Max
  • 5-V Analog Single Supply Operation
  • Internal Voltage References ...50 PPM/°C and ±5% Accuracy
  • Glueless DSP Interface
  • Parallel µC/DSP Interface
  • APPLICATIONS
    • Radar Applications
    • Communications
    • Control Applications
    • High-Speed DSP Front-End
    • Automotive Applications

WEBENCH® Designer THS1209



Parametrics

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Part number Order Resolution (Bits) Sample rate (Max) (kSPS) Number of input channels Interface Operating temperature range (C) Package Group Approx. price (US$) Power consumption (Typ) (mW) Package size: mm2:W x L (PKG) Architecture Input type Multi-channel configuration Reference mode Features Input range (Max) (V) Input range (Min) (V) Analog voltage AVDD (Min) (V) Analog voltage AVDD (Max) (V) Digital supply (Min) (V) Digital supply (Max) (V) INL (Max) (+/-LSB) SNR (dB) THD (Typ) (dB) Rating
THS1209 Order now 12     8000     2     Parallel     -40 to 85     TSSOP | 32     12.23 | 1ku     188     32TSSOP: 89 mm2: 8.1 x 11 (TSSOP | 32)     Pipeline     Differential
Single-Ended    
Simultaneous Sampling     Ext
Int    
    4     1.4     4.75     5.25     3     5.25     1.5     69     -70     Catalog