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Numéro de référence | MD1715 | ||
Description | Ultrasound Driver IC | ||
Fabricant | Supertex | ||
Logo | |||
1 Page
Supertex inc.
MD1715
Two Channel, Five Level, High Speed
Ultrasound Driver IC
Features
►► Advanced CMOS technology
►► ±4.75 to 12.9V gate drive voltage
►► 2A output source and sink current
►► 6.5ns rise and fall time with 1nF load
►► 10ns propagation delay
►► ±2ns matched delay times
►► 12 matched channels
►► 1.8V to 3.3V CMOS logic interface
►► Smart logic threshold
►► Low inductance package
Applications
►► Medical ultrasound imaging
►► Piezoelectric transducer drivers
►► Metal flaw detection
►► Non-Destructive Testing (NDT)
General Description
The Supertex MD1715, paired with the Supertex TC8020, forms
a two channel, five level, high voltage, high speed transmit pulser
chip set. The chip set is designed for medical ultrasound imaging
applications, but can also be used for metal flaw detection, Non-
Destructive Testing (NDT), and piezoelectric transducer drivers.
The MD1715 is a two channel logic controller circuit with 12 low
impedance MOSFET gate drivers. There are two sets of control
logic inputs, one each for channels A and B. Each channel
consists of three pairs of MOSFET gate drivers. These drivers
are designed to match the drive requirements of the Supertex
TC8020.
The TC8020 is the output stage of the pulser, with six pairs of
MOSFETs. Each pair consists of a P-channel and an N-channel
MOSFET. They are designed to have the same impedance and
can provide typical peak currents of ±3.5 amps at 200V.
Typical Application Circuit
+3.3V +12V
+12V +12V
VPP2
VPP1
1.8 to 3.3V
CMOS
Input Logic
VLL/EN
SELA
POSA
NEGA
POSB
NEGB
SELB
AVDD
VDD1 VDD2
OP1A
ON1A
OP2A
ON2A
OP3A
MD1715
ON3A
OP1B
ON1B
OP2B
ON2B
OP3B
10nF
10nF
10nF
10nF
10nF
10nF
10nF
10nF
AGND GND AVSS(SUB)
VSS
ON3B
SP6 SP3 SP5 SP2 SP4 SP1
GP1
DP1
GN1
DN1
GP2
DP2
GN2
DN2
GP3
DP3
GN3
GP4 TC8020 DN3
DP4
GN4
DN4
GP5
DP5
GN5
DN5
GP6
DP6
GN6
DN6
PAD SN6 SN3 SN5 SN2 SN4 SN1
TX(A)
TX(B)
-12V
-12V
VNN2
VNN1
Supertex inc. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 ● Tel: 408-222-8888 ● www.supertex.com
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Pages | Pages 9 | ||
Télécharger | [ MD1715 ] |
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