Interactive Parametric Search

The new Texas Instruments (TI) HiRel Web site has enhanced capabilities that shorten the design process. In addition to choosing from a HiRel product tree, solutions can be searched for by market application — Harsh Environments, Enhanced Products, Space or Wafer Solutions. An interactive parametric search function allows the designer to quickly indicate device specifications and find solutions that meet those indicated needs.

As always, technical documents, quality and reliability information, and purchasing information are available at: www.ti.com/hirel

One of the key applications for HT devices is down-hole drilling, for which many different types of electronic instruments are used for oil and gas exploration and extraction. Used for real-time data logging of rock formations and positions, these tools allow data acquisition in extremely harsh environments. The use of many different types of sensors can require multiple channels of signal amplification and analog-to-digital conversion.

A wide variety of TI products are available for down-hole drilling systems and equipment manufacturers, including op amps, digital signal processors (DSPs), microcontrollers, multichannel high-resolution data converters, interface, and power management. For more information, please visit www.ti.com/ht or www.ti.com/dhd.

REF5025-HT — Low-Noise, Very Low-Drift Precision Voltage Reference.

Features

• Available in extreme temperature range (–55°C to 210°C)
• Low temperature drift: 20 ppm/°C
• Low noise: 3 µVPP/V
• High output current: ±7 mA
• Controlled baseline
• Applications: Down-hole drilling, high-temperature automotive, jet engines, geothermal, harsh environments

SM470R1B1M-HT — ARM7TDMI™ Flash Microcontroller

Features

• Available in extreme temperature range (–55°C to 220°C)
• SM470R1x 16/32-bit RISC core (ARM7TDMI):
  • 60-MHz system clock (pipeline mode)
• 1-MB program flash
• 64KB static RAM (SRAM)
• Controlled baseline
• Down-hole drilling, high-temperature automotive, jet engines, geothermal, harsh environments

Our entire EP portfolio can be viewed at: www.ti.com/ep

SM320F28335PTPMEP — EP Digital Signal Controller
The SM320F28335 is a highly integrated, high-performance 32-bit microcontroller with high-performance integrated peripherals designed for real-time control applications. Its optimized core can run multiple complex control algorithms at speeds necessary for demanding control applications such as defense, aerospace, and medical. Powerful integrated peripherals combined with the SPI, UART, I2C, CAN, and McBSP communication peripherals make the SM320F28335 the perfect single-chip control solution.

Features

• Controlled baseline:
  • One assembly/test site
  • One fabrication site
  • Extended product life cycle
  • Extended product-change notification
  • Product traceability
• High-performance static CMOS technology:
  • Up to 150 MHz (6.67-ns cycle time)
  • 1.9-V/1.8-V core, 3.3-V I/O
• High-performance 32-bit CPU
• 16-bit or 32-bit external interface (XINTF) on-chip comparator
• Temperature options:
  • Military: –55°C to 125°C (PTP)
  • Industrial: –40°C to 85°C (GHH)

TPS5450-EP — EP 5-A, Wide-Input-Range, Step-Down SWIFT™ Converter
As a member of the SWIFT family of DC/DC regulators, the TPS5450 is a high-output-current PWM converter that integrates a low-resistance high-side n-channel MOSFET. Included on the substrate with the listed features are a high-performance voltage-error amplifier that provides tight voltage-regulation accuracy under transient conditions; an undervoltage-lockout circuit to prevent startup until the input voltage reaches 5.5 V; an internally set slow-start circuit to limit inrush currents; and a voltage feedforward circuit to improve the transient response. The ENA pin reduces shutdown supply current to 18 µA typically. Other features include an active-high enable, overcurrent limiting, overvoltage protection, and thermal shutdown. To reduce design complexity and external component count, the TPS5450 feedback loop is internally compensated.

The TPS5450 device is available in a thermally enhanced, 8-pin SOIC PowerPAD™ package. TI provides evaluation modules and software tools to aid in achieving high-performance power-supply designs to meet aggressive equipment-development cycles.

Features

• Wide input-voltage range: 5.5 V to 36 V
• Up to 5-A (6-A peak) continuous output current
• Efficiency greater than 90% enabled by 110-mW integrated MOSFET switch
• Wide output-voltage range, adjustable down to 1.22 V with 1.5% initial accuracy

Our entire Space portfolio can be viewed at: www.ti.com/space

CDCM7005-SP — High-Performance Clock Synchronizer and Jitter Cleaner
The CDCM7005 is a high-performance, low-phase-noise and low-skew clock synchronizer that synchronizes a voltage-controlled oscillator (VCO) or a voltage-controlled crystal oscillator (VCXO) frequency to one of the two reference clocks. The programmable predivider M and the feedback dividers N and P give a high flexibility to the frequency ratio of the reference clock to VC(X)O:

VC(X)O_IN/PRI_REF=(N × P)/M or
VC(X)O_IN/SEC_REF=(N × P)/M

The VC(X)O_IN clock operates at up to 2 GHz. Through the selection of external VC(X)O and loop filter components, the PLL loop bandwidth and damping factor can be adjusted to meet different system requirements.

The CDCM7005 can lock to one of two reference-clock inputs (PRI_REF or SEC_REF) and supports frequency holdover mode and fast frequency locking for fail-safe and increased system redundancy. The outputs of the CDCM7005 are user-definable and can be any combination of up to 5 differential LVPECL outputs or up to 10 LVCMOS outputs. The LVCMOS outputs are arranged in pairs (Y0A:Y0B, Y1A:Y1B,. . .) so that each pair has the same frequency, but each output can be separately inverted and disabled. The built-in synchronization latches ensure that all outputs are synchronized for low output skew.

Features

• High-performance LVPECL and LVCMOS PLL clock synchronizer
• Inputs from primary and secondary reference clocks for redundancy support with manual or automatic selection
• Accepts LVCMOS input frequencies of up to 200 MHz
• VCXO_IN clock is synchronized to one of the two reference clocks
• VCXO_IN clock frequencies of up to 2 GHz (LVPECL)
• Supports a combination of up to 5 differential LVPECL outputs or up to 10 LVCMOS outputs
• High-performance, 52-pin ceramic quad flatpack (HFG)
• Rad-tolerant: 50-kRad (Si) TID
• No SEL at 85 MeV-cm2/mg
• QML-V qualified, SMD 5962-07230
• Military temperature range: –55°C to 125°C Tcase

SMJ320C6701-SP — Rad-Tolerant Class-V Floating-Point DSP
The SMJ320C67xx DSPs are the floating-point DSP family in the SMJ320C6000 platform. The SMJ320C6701 ('C6701) device is based on the high-performance, advanced VelociTI™ very-long-instruction-word (VLIW) architecture developed by TI, making this DSP an excellent choice for multichannel and multifunction applications. With performance of up to 1 billion floating-point operations per second (1 GFLOPS) at a clock rate of 140 MHz, the 'C6701 offers cost-effective solutions to high-performance DSP programming challenges. The 'C6701 DSP possesses the operational flexibility of high-speed controllers and the numerical capability of array processors. This processor has 32 general-purpose registers of 32-bit word length and 8 highly independent functional units. The 8 functional units provide 4 floating-/fixed-point ALUs, 2 fixed-point ALUs, and 2 floating-/fixed-point multipliers. The 'C6701 can produce 2 multiply-accumulates (MACs) per cycle for a total of 334 million MACs (MMACS) per second. The 'C6701 DSP also has application-specific hardware logic, on-chip memory, and additional on-chip peripherals.

Features

• Rad-tolerant: 100-kRad (Si) TID
• SEL immune at 89 MeV-cm2/mg LET ions
• QML-V qualified, SMD 5962-98661
• Highest-performance floating-point DSP:
  • 7-ns instruction-cycle time
  • 140-MHz clock rate
  • Eight 32-bit instructions/cycle
  • Performance of up to 1 GFLOPS
  • Pin-compatible with SMJ320C6201 fixed-point DSP
• SMJ: QML processing to MIL-PRF-38535
• SM: Standard processing
• Operating temperature ranges:
  • –55°C to 115°C
  • –55°C to 125°C

UC1843MKGD1 — Current-Mode PWM Controller (Known Good Die)
The UC1843 family of control devices provides the necessary features to implement off-line or DC/DC fixed-frequency, current-mode-control schemes with a minimal external parts count. Internally implemented circuits include undervoltage lockout and feature start-up current of less than 1 mA; a precision reference trimmed for accuracy at the error amp input; logic to ensure latched operation; a PWM comparator that also provides current-limit control; and a totem-pole output stage designed to source or sink high peak current. The output stage, suitable for driving n-channel MOSFETs, is low in the OFF state. The undervoltage-lockout threshold is 8.4 V, and the maximum duty-cycle range is around 100%.

Features

• –55°C to 125°C Known Good Die (KGD)
• Controlled baseline
• Optimized for off-line and DC/DC converters
• Low start-up current (<1 mA)
• Automatic feedforward compensation
• Pulse-by-pulse current limiting
• Enhanced load-response characteristics
• Undervoltage lockout with hysteresis
• Double pulse suppression
• High-current totem-pole output
• Internally trimmed bandgap reference
• 500-kHz operation
• Low RO error amp