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New
High-Performance Analog Showcase
from Texas Instruments
Late February 2005
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In
this Issue:
Amplifiers & Linear
Data Converters
Power Management
Analog Switches
Analog Training/Seminars
Company-Authored Articles in the Media
Customer Support Contact Information
AMPLIFIERS & LINEAR
80-mW Capless Headphone Driver: The TPA4411 is a stereo headphone driver designed to allow for the removal of the output DC-blocking capacitors for reduced component count and cost.
- Fixed gain of -1.5 V/V; headphone outputs have ± 8-kV IEC ESD protection
- Wide power supply range: 1.8 V to 4.5 V
- 2 mm x 2 mm WCSP, 16-ball
- Applications: Notebooks, CD/MP3 players, smart phones, cell phones, PDAs
Voltage Output, High-Side, Measurement Current Shunt Monitor: The INA19x current shunt monitor has a common-mode range that includes zero and negative voltages with positive CMV range of +80 V.
- Buffered voltage output; no additional amp required
- Wide common-mode voltage: -16 V to +80 V
- Low error: 3.0% over temp (max)
- Applications: Welding equipment, notebooks, cell phones, telecom, automotive, power management, and battery chargers
Dual, High-Speed, Low-Noise Op Amp: With features including wide gain bandwidth, high slew rate, and low input offset voltage, the MC33078 is ideal for use in audio and analog signal applications.
- 0.15 mV input offset voltage (25°C typ); 0.002% THD (25°C typ)
- 4.5 nV/root Hz noise voltage ( f=1 kHz typ)
- Single- or dual-supply operation (±5 V - ±18 V or 10 V - 36 V)
Single, Low-Voltage, Rail-to-Rail Output Op Amp with Shutdown: The TLV341 op amp offers low operating voltage, low power consumption, and rail-to-rail output swing.
- 1.8-V and 5-V performance
- 1.7-mV max input offset voltage from -40°C to 125°C
- Applications: 1.8 Vcc applications using a single lithium or two alkaline cells, including cordless/cell phones, consumer electronics, and battery-powered electronics
Dual High Output Current Op Amp: The TL3414A dual op amp, which can be operated from a single- or dual-rail power supply, offers high gain and high output voltage swing and is capable of driving a 70-mA load.
- Wide operating voltage (3 V to 15 V) and low noise (18 nV/root Hz typ)
- High output current (70 mA @ Vcc+ =5 V)
- Full electrical specifications at both 5.0 V and 8.6 V
DATA CONVERTERS
14-Bit, 105-MSPS, Low-Noise 5-V ADC: The ADS5424 bipolar ADC with 3.3-V CMOS-compatible digital outputs (2's complement) enables seamless interfacing with common logic.
- Includes a wideband input buffer, linear T/H stage and internal reference
- Outstanding low noise and linearity over a wide input frequency range from baseband up to 200 MHz
- Applications: Wireless communications, test and measurement, video and imaging, medical and military equipment
12-Bit, 125-MSPS ADC with Industry's Lowest Power: The ADS5520 ADC offers excellent power consumption—740 mW at 3.3 V single supply. Complete with S/H stage and internal reference, the ADS5520 also features a parallel CMOS-compatible output for seamless interfacing with common logic.
- Allows equipment manufacturers to achieve improved receiver performance in wireless applications, extended signal analysis for test equipment, and higher precision with lower magnetic field energy in imaging applications
- Applications: Wireless communications, test and measurement, video and imaging and medical equipment
POWER MANAGEMENT
Dual 250-mA Output, Ultra-Low Noise, High PSRR Low Dropout Linear Regulator with Integrated SVS: The TPS71319, tailored to noise-sensitive and RF applications, features dual 250-mA LDOs and an integrated SVS, consuming very low quiescent current (300 µA typ, standby 0.3 µA).
- Input voltage range: 2.7 V to 5.5 V
- Fixed output voltages (1.8 V to 3.3 V) and adjustable (1.2 V to 5.0 V)
- Very high PSRR: 70 dB @ 1 kHz, 65 dB @ 10 kHz
- Applications: Handsets/PDAs, RF applications, VCO power supplies, sequenced supplies
16-Channel LED Driver for Large-Form LED Displays: The TLC5923 is a 16-channel, non-grayscale, constant-current sink driver designed to support large-form, color LED displays. Each channel has individually controlled 128 steps of adjustable current value (dot correction) and an ON/OFF state that allows for even sharper images.
- Single external resistor sets the max current of all 16 channels
- Multiple devices can be cascaded serially and controlled through a single GPIO
- Applications: Large-form video displays such as stadium scoreboards, video and advertising displays and multicolor LED lighting
16-Channel LED Driver w/Dot Correction and Grayscale PWM Control: The TLC5940 is a 16-channel constant-current sink LED driver with industry-leading channel-to-channel accuracy (1% typ), while chip-to-chip accuracy (2.7% typ) improves display quality.
- 12-bit (4096 steps) grayscale PWM control
- 6-bit (64 bits) dot correction
- Multiple devices can be cascaded serially to allow for full control through a single GPIO
- Applications: Mono- and multi-color LED displays, LED signboards, video and advertising displays
0.5% Tolerance Low-Voltage Adjustable Shunt Regulator: The TLVH431B is a low-voltage 3-terminal adjustable shunt regulator with 0.5% tolerance at 25ºC and specified limits over the full -40º to 125ºC temperature range.
- Low temperature drift: 4 mV (typ) from 0 to 70º C
- Adjustable Vka range: 1.24 V – 18 V
- Sink current (Ik) capability: 0.8 mA – 80 mA
- Applications: Consumer electronics, power supply manufacturers, industrial, telecom/networking, instrumentation, and medical equipment
0.5%-Tolerance, Low-Voltage, Adjustable Shunt Regulator: The TLV431 is a low-voltage, 3-terminal adjustable voltage reference with specified thermal stability over applicable industrial and commercial temperature ranges.
- Tight initial tolerance: 0.5%
- Low temperature drift: Typ 4 mV (0º to 70 ºC), 6 mV (-40º to 85ºC), 11 mV (-40º to 125ºC)
- Applications: Consumer electronics, power supplies, industrial, telecom & networking
ANALOG SWITCHES
14-Ω Dual SP4T (Single-Pole, Quadruple-Throw) Analog Switch: The TS3A5017 is able to switch multiple signal sources while maintaining a low cross talk of -49 dB, making it ideal for home audio/video equipment and car audio/navigation, where there is often a need to switch between multiple sources such a satellite radio, traditional radio, DVD player, or other entertainment sources.
- Applications: Audio and video signal routing
10-Ω Quad SPDT (Single-Pole, Double-Throw) Analog Switch: The TS3A5018, designed to handle both digital and analog signals, features a low THD of only 0.2% and low crosstalk/off isolation of -48 dB, making it ideal for signal isolation and rerouting.
- Switches between two sources such as an audio input and microphone input
- Low ON-state resistance
- Control inputs are 5.5-V tolerant
- Applications: Audio and video signal routing in home audio/video equipment, car navigation, and portable instrumentation
ANALOG TRAINING/SEMINARS
Analog ELabs Webcast: Wednesday, March 9, 11:00 A.M. CST: Amplifier Noise: Types, Origins, Magnitude Predictions, and Reduction Techniques. All electronic circuits generate noise. Join host Bill Klein and his guests, fellow Senior Applications Engineer Neil Albaugh and co-sponsor Memec/Insight representative Dan Ngai, and explore the random nature of various noise signatures and their origin. A new tool is introduced to predict the noise from op amp circuits and techniques are explored to improve the noise performance of amplifier circuits. Lab tests demonstrate various noise signatures and results from reduction techniques.
Register Now
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
"Is Mother Nature Just Messing With You?" by Dave Freeman. Portable Design (Column), January 2005.
"Meeting the Distortion Goals. The D/A Diaries." Part 3 of 3 by Hitoshi Kondoh. Planet Analog, January 4, 2005.
"Smart Handling of Two Different Input Power Sources in Portable Applications," by Jurgen Neuhaeusler. Electronic Engineering & Product World China, January 2005.
"Step-Up Converter for White LEDs," by Dirk Gehrke. Elektor (UK, France and Germany editions), January/February 2005.
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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