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New
High-Performance Analog Showcase
from Texas Instruments
Early February 2005
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here.
In
this Issue:
Amplifiers
Data Converters
Power Management
New Solutions Guides
Analog Training/Seminars
Company-Authored Articles in the Media
Customer Support Contact Information
AMPLIFIERS
Wideband, Low Noise, Low Distortion Amp: The THS4509 is a fully-differential amplifier, designed for 5 V data acquisition systems, with very low noise and extremely low harmonic distortion.
- 1900 MHz bandwidth
- Very high slew rate at 6600 V/µs
- Settling time of 2 ns to 1% (2 V step) is ideal for pulsed applications
- Applications: 5 V data acquisition systems, wireless communications, medical imaging and test and measurement.
Reference Voltage Generator for LCD Gamma Correction: The BUF12800 programmable voltage source consists of 12 double-buffered DACs, each with 10-bit resolution. It allows fast and easy adjustment of 12 programmable voltage outputs.
- Highly integrated with low per-channel cost
- High supply voltages (7-18 V) and output current (100 mA)
- 12-channel gamma correction, 10-bit resolution
- Applications: LCD panels, industrial and medical
Dual Wideband, Low-Power Current Feedback Op Amp: The OPA2694 provides a 5.8-mA/ch dual amplifier solution with >500 MHz bandwidth.
- Wide bandwidth: 900 MHz (G = +1)
- Unity gain stable bandwidth: 1500 MHz
- Low supply current (5.8 mA) and high slew rate (1700 V/µs)
- Applications: Broadcast video, communications, and portable test instrumentation
Quad Unity-Gain, Low-Noise, Voltage-Feedback Op Amp: The OPA4820 general-purpose, low-cost, quad high-speed op amp provides a 5.7 mA/ch quad amplifier solution with >500 MHz unity gain bandwidth.
- Wide bandwidth: 650 MHz (G = +1)
- Wide gain of +2 V/V bandwidth: 220 MHz
- Low supply current (5.7 mA/ch) and input noise voltage (2.5nV/√Hz)
- Excellent DC accuracy
Dual Audio Op Amp: The RC4560 high-gain, wide bandwidth, dual op amp can drive 20 V peak-to-peak into 400-Ω loads.
- Wide operating voltage (±2 V to ±18 V), low noise (1.2 µVrms typ), and wide gain bandwidth (15 MHz typ)
- Slew rate (5.5 V/µsec typ)
- Applications: Active filter, data and telecommunications, and instrumentation
High-Voltage, High Slew Rate, Wideband, FET-Input Op Amp: Featuring the industry’s highest slew rate (1000 V/µs), the THS4631 offers a combination of low distortion (-76 dB at 5 MHz) and very high bandwidth (325 MHz UGBW and 210 MHz GBW).
- Low input offset voltage: 0.5 mV
- Applications: High-speed interface, ADC and DAC buffering, and test and measurement
SPI-Compatible Temp Sensor: The TMP125 10-bit digital temperature sensor with SPI interface features 10-bit, 0.25°C resolution and ±2.0°C accuracy from –25°C to +85°C.
- Low quiescent current: 50 µA
- Applications: Thermal measurement in a variety of communication, computer, consumer, industrial and instrumentation applications
2.1-W, Stereo Class-D Audio Power Amp: The TPA2012D2 features a fully differential architecture with good efficiency (85%) and power dissipation (1.4 W).
- Applications: Portable audio devices including cell phones, smart phones, PDAs, notebooks, and portable DVD players
8-Channel VCA and LNA with Integrated LP Filter: The VCA8617, an 8-channel LNA+TGC voltage-controlled amplifier, features a high level of integration, low noise, and low power (101 mW/channel).
- Low noise: 5 MHz—1nV/rtHz @ 19 dB LNA gain
- Integrated LP filter and input protection
- Applications: Portable ultrasound systems, performance mid-range ultrasound systems, and industrial imaging
DATA CONVERTERS
True 16-Bit High-Speed ΔΣ ADC: The ADS1601 is a high-speed (1.25-MSPS), high-precision ADC featuring 16 bits of real resolution.
- Superior noise performance: 92 dB SNR, -103 dB THD, and 105 dB SFDR
- Low power: 330 mW at 1.25 MSPS
- Applications: Scientific instrumentation, sonar, automated test equipment, data acquisition, medical imaging, and vibration analysis
4-Channel, 12-Bit, 40-MSPS ADC with Serial LVDS Interface: The ADS5240 is a high-performance ADC with internal references provided, simplifying system design requirements.
- 70.5 dB SNR and 85 dB SFDR
- Low power: 607 mW
- Applications: Medical and industrial imaging, wireless communications, and instrumentation
High-Performance, 18-Bit, 600 kSPS Serial ADC with Unipolar Input: The ADS8380, the smallest 18-bit SAR data converter available, features a combination of high performance, an internal reference buffer, high-speed serial interface (up to 40 MHz), and 6 mm x 6 mm QFN packaging.
- ±2 LSB typ, ±4 LSB max INL
- SINAD 91 dB, SFDR 119 dB at fi = 1 kHz
- Applications: Medical instrumentation, optical networking, transducer interface, high accuracy data acquisition, and magnetometers
14-Bit and 16-Bit Single-Channel, 4-Quadrant Multiplying DACs: The DAC8801 and DAC8811 feature ±1 LSB max INL performance and micropower operation (5 µA at 5-V).
- +2.7-V to +5.5-V supply
- Applications: Portable, closed loop monitoring/control, process control, data acquisition system, and programmable attenuation
DAC8811 (16-bit): Price (1 ku) $8.50-$9.90
Precision ADC and DAC with 8051 MCU and Flash Memory: The MSC1201 and MSC1202 families offer a low-cost precision data acquisition system and a low-noise ADC.
- MSC1201: 24-bit ADC, 24-bit No Missing codes, low noise (75 nV)
- MSC1202: 16-bit ADC, 16-bit No Missing codes, low noise: (600 nV)
- 15 ppm INL
- Applications: Industrial process control, portable instrumentation, and test and measurement
MSC1201: Price (1 ku) $5.60-$5.95
POWER MANAGEMENT
Wide Input, 50-A Non-Isolated DC/DC Module: The PTH12040W offers the flexibility of high density and wide-range input and output voltages in an open-frame package that occupies only 2 square inches.
- Can be programmed with external resistors to deliver tightly regulated outputs from 0.8 V to 5.5 V at up to 50 A
- Wide-range input: 8 V to 14 V
- Wide-range adjustable output: 0.8 V to 5.5 V
- Applications: Distributed power and intermediate bus architectures, industrial test and measurement equipment, workstations and medical equipment
Wide Input, 6-A/3-A Non-Isolated DC/DC Module: The PTN78020W (6-A) and PTN78060W (3-A) are non-isolated DC/DC modules that provide a single regulated output over a wide input voltage range. The device is a smaller, higher performance and lower cost alternative for new designs or designs that must be modified to meet RoHS.
- Wide input range: 7 V to 36 V
- Wide-range adjustable output: 2.5 V to 12.6 V
- Efficiency @ 12 V: 96% (PTN78020W), 90% (PTN78060W)
- Applications: Industrial test and measurement, distributed power and medical equipment
PTN78020: Price (1 ku) $15.00
Backup-Battery Supervisor for RAM Retention: The TPS3618/20 family of supervisory circuits monitors and controls processor activity by providing backup-battery switchover for data retention of CMOS RAM.
- Battery freshness seal removed
- Supply current of 40 µA (max)
- Battery-supply current of 100 nA (max)
- Applications: consumer electronics, portable long-time monitoring equipment
TPS3618: Price (1 ku) $1.35
Dual 250-mA Output, Ultra-Low Noise, High PSRR, LDO in QFN: The TPS712xx is the first in a new line of dual 250-mA LDOs that are stable with 2.2 µF ceramic output capacitors.
- High PSRR: 60 dB at 10 kHz
- Ultra-low noise: 32 µVrms
- Fast start-up time: 50 µs
- Noise-sensitive and RF applications
Dual, 250-mA, Ultra-low Noise, High PSRR, RF LDOs: The TPS713xx are dual output high PSRR LDOs in a tiny, thermally enhanced SON package the size of a SOT23.
- Integrate SVS to monitor VOUT2
- Available in fixed (1.2-V to 5.5-V) and adjustable voltages
- High PSRR: 65 dB at 10 kHz
- Ultra-low noise: 35 µVrms
- Applications: Cell phones, wireless/handheld products, consumer electronics, and DSP/FPGA/ASIC controllers and processors
80-mA, High-Input Voltage, Low-Iq LDO in SON package: The TPS715Axx micropower, 80-mA LDO supports input to 24 V and output to 15 V in a 3 mm x 3 mm x 1 mm thermally-enhanced package.
- Micropower—consumes just 3.2-µA
- Available in 3.3 V and adjustable (1.2 V to 15 V)
- Wide Input Voltage Range: 2.5 V to 24 V
- Applications: Ultra-low power MCUs, industrial/automotive, PDAs, and portable electronics
TPS730xx 200 mA LDOs: The TPS730xx family of LDOs features high PSRR, ultra-low noise, fast start-up (50 µs), and excellent line and load transient responses in a small SOT23 package.
- Available in 1.8 V, 2.5 V, 3 V, and 3.3 V
- 68 dB at 1 kHz PSRR
- Stable with a 2.2-µF ceramic capacitor
- Applications: RF VCOs, receivers, and ADCs; audio; cell and cordless phones; Bluetooth™; wireless LAN; and PDAs
NEW SOLUTIONS GUIDES
TI has three new solutions guides: Audio, Industrial, and Video and Imaging. The guides include system block diagrams, product information, benchmarks, development tools, software, support and various other technical resources. Click on the guide names above to download.
ANALOG TRAINING/SEMINARS
Analog eLab: Webcasts Begin February 9, 2005. Quantifying Amp to ADC – Distortion Considerations: This free eLab will show that interfacing an amplifier to an A/D converter requires more than a simple plug-and-play approach. When the applied signal is from an analog multiplexer, the system slew rate and settling time are critical. If the system is tracking a continuous wave form, the selection of the R-C values for the flywheel network are a major factor in the SINAD performance parameter. From the SINAD value, the Effective Number of Bits (ENOB) can be calculated for the system. Lab bench demonstrations show that the type of capacitor used in the flywheel and the nature of the output stage of the driving amplifier can have significant impact.
Register Now!
2005 TI Developer Conference: To learn about state-of-the-art video applications for streaming, surveillance and portable media, attend the 2005 North America TI Developer Conference. Learn how to overcome design challenges and discover how flexible high-performance analog and digital solutions can be. Register here.
Israel Analog Solutions Seminar: A one-day free seminar will provide a technical and highly practical series of analog presentations on power management, data converters and signal conditioning, and interface audio and video. For registration and information, visit: www.ti.com/hpa
European Power Supply Design Seminar: All-new topics for 2005. Presentations combine an array of advanced new power supply concepts, basic design principles, and real-world application examples. Register before April 3 and receive a free
mobile phone dynamo charger. For registration and information, visit: www.ti.com/power2005
COMPANY AUTHORED ARTICLES IN THE MEDIA
"A Low-Cost, High-Precision 700,000 Count Panel Meter." Hugo Cheung, AnalogZONE, 12/13/04.
"Adding a New Dimension to an Old Tradition." Dave Freeman, Portable Design, 12/04.
"Li-Ion Battery-Charging Considerations." Patrick Heyer, Electronic Products, 12/04.
"Simple, Battery-Operated, Remote Temperature Sensor with 4-20 mA Current Loop Output Based on the TPS60230 White LED Driver." Scot Lester, EDN, 12/17/04.
"External Circuit Effects on High-Speed ADC Inputs." Hui-Qing Liu,
AnalogZONE, 12/03/04.
CUSTOMER SUPPORT CONTACT INFORMATION
| Product Information Center | - Americas |
| Product Information Center | - Europe, Africa, Middle East |
| Product Information Center | - Asia/Pacific |
| Product Information Center | - Japan |
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