THS1206IDAR

THS1206 www.ti.com SLAS217H – MAY 1999 – REVISED JULY 2003# 12-BIT, 4 ANALOG INPUT, 6 MSPS, SIMULTANEOUS SAMPLINGANALOG-TO-DIGITAL CONVERTERS FEATURES D D D D D D D D D D D D D D D D High-Speed 6 MSPS ADC 4 Analog 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 fI = 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 µC/DSP Interface Integrated FIFO Available in TSSOP Package Pin Compatible Upgrade to THS10064 APPLICATIONS D D D D D Radar Applications Communications Control Applications High-Speed DSP Front-End Automotive Applications DESCRIPTION The THS1206 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 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 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 while 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. The THS1206M is characterized for operation over the full military temperature range of –55°C to 125°C. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCT PREVIEW information concerns products in the formative or design phase of development. Characteristic data and other specifications are design goals. Texas Instruments reserves the right to change or discontinue these products without notice. Copyright  1999 – 2003, Texas Instruments Incorporated THS1206 www.ti.com SLAS217H – MAY 1999 – REVISED JULY 2003# ORDERING INFORMATION PACKAGED DEVICE TA TSSOP (DA) 0°C to 70°C THS1206CDA –40°C to 85°C THS1206IDA –40°C to 125°C THS1206QDA –55°C to 125°C THS1206MDA These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. ABSOLUTE MAXIMUM RATINGS over operating free-air temperature range unless otherwise noted(1) THS1206 Supply voltage range DGND to DVDD –0.3 V to 6.5 V BGND to BVDD –0.3 V to 6.5 V AGND to AVDD –0.3 V to 6.5 V Analog input voltage range AGND –0.3 V to AVDD + 1.5 V Reference input voltage –0.3 V + AGND to AVDD + 0.3 V Digital input voltage range –0.3 V to BVDD/DVDD + 0.3 V Operating virtual junction temperature range, TJ Operating free-air free air temperature range, range TA Storage temperature range, Tstg –55°C to 150°C THS1206C 0°C to 70°C THS1206I –40°C to 85°C THS1206Q –40°C to 125°C THS1206M –55°C to 125°C –65°C to 150°C Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 260°C (1) Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. 2 THS1206 www.ti.com SLAS217H – MAY 1999 – REVISED JULY 2003# RECOMMENDED OPERATING CONDITIONS POWER SUPPLY Supply voltage MIN NOM MAX AVDD DVDD 4.75 5 5.25 3 3.3 5.25 BVDD 3 3.3 5.25 ANALOG AND REFERENCE INPUTS MIN Analog input voltage in single-ended configuration MAX V 2.5 VREFP 4 3.5 AVDD–1.2 V External reference voltage,VREFP (optional) External reference voltage, VREFM (optional) 1.4 Input voltage difference, REFP – REFM DIGITAL INPUTS V NOM VREFM 1 Common-mode input voltage VCM in differential configuration UNIT MIN UNIT V 1.5 V 2 V NOM MAX High level input voltage, High-level voltage VIH BVDD = 3.3 V BVDD = 5.25 V Low level input voltage, Low-level voltage VIL BVDD = 3.3 V BVDD = 5.25 V Input CONV_CLK frequency DVDD = 3 V to 5.25 V 0.1 CONV_CLK pulse duration, clock high, tw(CONV_CLKH) DVDD = 3 V to 5.25 V 80 83 5000 ns CONV_CLK pulse duration, clock low, tw(CONV_CLKL) DVDD = 3 V to 5.25 V 80 83 5000 ns THS1206CDA Operating free-air free air temperature, temperature TA 2 UNIT V 2.6 V 0.6 0.6 0 6 V V MHz 70 THS1206IDA –40 85 THS1206QDA –40 125 THS1206MDA –55 125 °C PACKAGE DISSIPATION RATINGS PACKAGE TA ≤ 25°C POWER RATING DERATING FACTOR ABOVE TA = 25°C(1) TA = 70°C POWER RATING TA = 85°C POWER RATING TA = 125°C POWER RATING DA 1453 mW 11.62 mW/°C 930 mW 756 mW 291 mW (1) This is the inverse of the traditional junction-to-ambient thermal resistance (RθJA). Thermal resistances are not production tested and are for informational purposes only. 3 THS1206 www.ti.com SLAS217H – MAY 1999 – REVISED JULY 2003# ELECTRICAL CHARACTERISTICS over recommended operating conditions, VREF = internal (unless otherwise noted) DIGITAL SPECIFICATIONS PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Digital inputs IIH IIL High-level input current DVDD = digital inputs –50 50 µA Low-level input current Digital input = 0 V –50 50 µA Ci Input capacitance 5 pF Digital outputs VOH High level output voltage High-level VOL Low level output voltage Low-level IOZ CO High-impedance-state output current CL Load capacitance at databus D0 – D11 IOH = –50 50 µA BVDD = 3.3 V, BVDD = 5 V CS1 = DGND, CS0 = DVDD BVDD–0.5 BVDD–0.5 V V 0.4 –10 Output capacitance V 0.4 V 10 µA 5 pF 30 pF DC SPECIFICATIONS PARAMETER TEST CONDITIONS Resolution MIN TYP MAX 12 UNIT Bits Accuracy Integral nonlinearity, nonlinearity INL C and I suffix ±1.5 Q and M suffix ±1.8 ±1 Differential nonlinearity, DNL Offset error After calibration in single-ended mode After calibration in differential mode Gain error 20 LSB LSB LSB –20 20 LSB –20 20 LSB ±10 µA Analog input Input capacitance Input leakage current 15 VAIN = VREFM to VREFP pF Internal voltage reference Accuracy VREFP Accuracy, Accuracy VREFM Accuracy, C and I suffix 3.3 3.5 3.7 Q and M suffix 3.3 3.5 3.7 C and I suffix 1.4 1.5 1.6 Q and M suffix 1.3 1.5 1.7 Temperature coefficient 50 Reference noise Accuracy REFOUT Accuracy, Q and M suffix V PPM/°C µV 100 C and I suffix V 2.475 2.5 2.525 2.3 2.5 2.7 V Power supply IDDA IDDD Analog supply current IDDB Buffer supply current IDD_P DD P Supply current in power-down power down mode AVDD = 5 V, BVDD = DVDD = 3.3 V Power dissipation AVDD = 5 V, DVDD = BVDD = 3.3 V AVDD = 5 V, DVDD = BVDD = 3.3 V Digital supply current Power dissipation in power down 4 AVDD = 5 V, DVDD = BVDD =3.3 V AVDD = 5 V, DVDD = BVDD =3.3 V AVDD = 5 V, DVDD = BVDD =3.3 V 36 40 mA 0.5 1 mA 1.5 4 mA 7 mA C and I suffix Q and M suffix 186 30 10 mA 216 mW mW THS1206 www.ti.com SLAS217H – MAY 1999 – REVISED JULY 2003# ELECTRICAL CHARACTERISTICS over recommended operating conditions, VREF = internal, fx = 6 MHz, fI = 2 MHz at –1 dBFS (unless otherwise noted) AC SPECIFICATIONS, AVDD = 5 V, BVDD = DVDD = 3.3 V, CL =