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LM96551 Dataheets PDF



Part Number LM96551
Manufacturers Texas Instruments
Logo Texas Instruments
Description Ultrasound Transmit Pulser
Datasheet LM96551 DatasheetLM96551 Datasheet (PDF)

LM96551 www.ti.com SNAS511B – OCTOBER 2011 – REVISED MAY 2013 LM96551 Ultrasound Transmit Pulser Check for Samples: LM96551 FEATURES 1 •2 8-Channel High-Voltage CMOS Pulse Generator • Output Pulses with ±50V and 2A Peak Current • Active Damper with Built-In Blocking Diodes • Built-In Floating Supply Voltages for Output Stage • Up to 15 MHz Operating Frequency • Matched Delays for Rising and Falling Edges • Low Second Harmonic Distortion Allows and Improves Harmonic Imaging • Continuous-Wave .

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LM96551 www.ti.com SNAS511B – OCTOBER 2011 – REVISED MAY 2013 LM96551 Ultrasound Transmit Pulser Check for Samples: LM96551 FEATURES 1 •2 8-Channel High-Voltage CMOS Pulse Generator • Output Pulses with ±50V and 2A Peak Current • Active Damper with Built-In Blocking Diodes • Built-In Floating Supply Voltages for Output Stage • Up to 15 MHz Operating Frequency • Matched Delays for Rising and Falling Edges • Low Second Harmonic Distortion Allows and Improves Harmonic Imaging • Continuous-Wave (CW) Operation Down to ±3.3V • Low Phase Noise Enables Doppler Measurements – -145 dBc/Hz Phase Noise at 10 MHz (1 kHz offset) • Output State Over-Temperature Protection • Blocking Diodes for Direct Interface to Transducer • 2.5V to 5.0V CMOS Logic Interface • Low-Power Consumption per Channel • Over Temperature Protection APPLICATIONS • Ultrasound Imaging DESCRIPTION The LM96551 is an eight-channel monolithic highvoltage, high-speed pulse generator for multi-channel medical ultrasound applications. It is well-suited for use with Texas Instrument’s LM965XX series chipset which offers a complete medical ultrasound solution targeted towards low-power, portable systems. The LM96551 contains eight high-voltage pulsers with integrated diodes generating ±50V bipolar pulses with peak currents of up to 2A and pulse rates of up to 15 MHz. Advanced features include low-jitter and low-phase-noise output pulses ideal for continuouswave (CW) modes of operation. Active clamp circuitry is integrated for ensuring low harmonic distortion of the output signal waveform. The LM96551 also featuers a low-power operation mode and over-temperature protection (OTP) which are enabled by on-chip temperature sensing and power-down logic. KEY SPECIFICATIONS • Output voltage ±50 V • Output peak current ±2.0 A • Output pulse rate Up to 15 MHz • Rise/fall delay matching (max) < 3.7 ns • Pulser HD2 (5 MHz) -40 dB • Operating Temp. 0 to +70 °C 1 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. All trademarks are the property of their respective owners. 2 PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2011–2013, Texas Instruments Incorporated LM96551 SNAS511B – OCTOBER 2011 – REVISED MAY 2013 Block Diagram VLL VDD VDN VPF VPP MOD www.ti.com EN PIN n NIN n Input Buffer Level Shifter OTP Temp Sensor Regulates Level Shifter Up Buffer Level Shifter Down Buffer Vout n Active Damper AGND Typical Application VSUB VNF VNN HVGND Figure 1. 8-Channel Transmit/Receive Chipset 2 Submit Documentation Feedback Product Folder Links: LM96551 Copyright © 2011–2013, Texas Instruments Incorporated www.ti.com Pin Diagram LM96551 SNAS511B – OCTOBER 2011 – REVISED MAY 2013 HVGND Vout1 Vout1 HVGND Vout2 Vout2 HVGND Vout3 Vout3 HVGND HVGND Vout4 Vout4 HVGND Vout5 Vout5 HVGND Vout6 Vout6 HVGND 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 Vout0 1 60 Vout7 Vout0 2 59 Vout7 HVGND 3 0: VSUB 58 HVGND VPP 4 57 VPP VPP 5 56 VPP VPP 6 55 VPP VPP 7 54 VPP VPF 8 53 VPF HVGND 9 VNF 10 VNN 11 LM96551 LLP 52 HVGND 51 VNF 50 VNN VNN 12 49 VNN VNN 13 48 VNN VNN 14 47 VNN VSUB 15 46 VSUB VDN 16 45 VDN AGND 17 44 AGND VDD 18 43 VDD AGND 19 42 AGND VLL 20 41 VLL 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 Pin0 Nin0 Pin1 Nin1 Pin2 Nin2 Pin3 Nin3 EN OTP MODE AGND Pin4 Nin4 Pin5 Nin5 Pin6 Nin6 Pin7 Nin7 Figure 2. WQFN Package See Package Number NKF0080A Copyright © 2011–2013, Texas Instruments Incorporated Product Folder Links: LM96551 Submit Documentation Feedback 3 LM96551 SNAS511B – OCTOBER 2011 – REVISED MAY 2013 Pin No. 21, 23, 25, 27, 33, 35, 37, 39 22, 24, 26, 28, 34, 36, 38, 40 59, 60 62, 63 65, 66 68, 69 72, 73 75, 76 78, 79 1, 2 29 31 Name PIN n=0...7 NIN n=0...7 VOUT7 VOUT6 VOUT5 VOUT4 VOUT3 VOUT2 VOUT1 VOUT0 EN MODE 30 4, 5, 6, 7, 54, 55, 56, 57 11, 12, 13, 14, 47, 48, 49, 50 8, 53 10, 51 18, 43 16, 45 20, 41 0, 15, 46 3, 9, 52, 58, 61, 64, 67, 70, 71, 74, 77, 80 17, 19, 32, 42, 44 OTP VPP VNN VPF VNF VDD VDN VLL VSUB HVGND AGND PIN DESCRIPTIONS Type Function and Connection Input Logic control positive output channel P 1 = ON 0 = OFF Input Logic control negative output channel N 1 = ON 0 = OFF www.ti.com Output High voltage output of channels 0 to 7 Input Input Output Power Power Power Power Power Power Power Power Ground Ground Chip power enable 1 = ON 0 = OFF Output current mode control 1 = Max Current 0 = Low Current Over-temperature indicating IC temp > 125°C 0 = Over-temperature 1 = Normal temperature This pin.


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