NR102405

HV2701

Initial Release

Features

HVCMOS technology for high performance
Integrated bleed resistors on the outputs
16 Channels of high voltage analog switch
3.3V input logic level compatible
20MHz data shift clock frequency
Very low quiescent power dissipation-10礎
Low parasitic capacitance
DC to 10MHz analog signal frequency
-60dB typical off-isolation at 5MHz
CMOS logic circuitry for low power
Excellent noise immunity
Cascadable serial data register with latches
Flexible operating supply voltages

Applications

Medical ultrasound imaging
NDT metal fl aw detection
Piezoelectric transducer drivers
Optical MEMS modules

General Description

The Supertex HV2701 is a low charge injection 16-channel high
voltage analog switch integrated circuit (IC) with bleed resistors. The
device can be used in applications requiring high voltage switching
controlled by low voltage control signals, such as medical ultrasound
imaging and piezoelectric transducer drivers. The bleed resistors
eliminate voltage built up on capacitive loads such as piezoelectric
transducers.

Input data is shifted into a 16-bit shift register that can then be retained
in a 16-bit latch. To reduce any possible clock feed through noise, the
latch enable bar should be left high until all bits are clocked in. Data
are clocked in during the rising edge of the clock. Using HVCMOS
technology, this device combines high voltage bilateral DMOS
switches and low power CMOS logic to provide effi cient control of
high voltage analog signals.

The device is suitable for various combinations of high voltage
supplies, e.g., V

: +40V/-160V, +100V/-100V, and +160V/-40V.

HV2701 Block Diagram

Low Charge Injection 16-Channel

High Voltage Analog Switch with Bleed Resistors

LE CL

LEVEL

SHIFTERS

OUTPUT

SWITCHES

LATCHES

OUT

CLK

SW0

GND

SW1

SW2

SW14

SW15

GND

16 BIT

SHIFT

REGISTER

NR102405

HV2701

Ordering Information

DEVICE

Package Options

48-Lead TQFP (1.4mm)

HV2701

HV2701FG-G

-G indicates package is RoHS compliant (`Green')

Absolute Maximum Ratings

Logic supply

-0.5V to +7V

-V

differential supply

220V

Positive supply

-0.5V to V

+200V

Negative supply

+0.5V to -200V

Logic input voltage

-0.5V to V

+0.3V

Analog signal range

to V

Peak analog signal current/channel

3.0A

Storage temperature

-65癈 to 150癈

Power dissipation

*Absolute Maximum Ratings are those values beyond which damage to the device may occur.

Functional operation under these conditions is not implied. Continuous operation of the device at the
absolute rating level may affect device reliability. All voltages are referenced to device ground.

Operation Conditions

Symbol

Parameter

Value

Logic power supply voltage

3.0V to 5.5V

Positive high voltage supply

40V to V

+200V

Negative high voltage supply

-40V to �160V

High level input voltage

0.9V

to V

Low level input voltage

0V to 0.1V

SIG

Analog signal voltage peak-to-peak

+10V to V

-10V

Operating free air temperature

0癈 to 70癈

Notes:
1 Power up/down sequence is arbitrary except GND must be powered-up fi rst and powered-down last.
2 V

SIG

must be within V

and V

or fl oating during power up/down transition.

3 Rise and fall times of power supplies V

, V

, and V

should not be less than 1.0msec.

NR102405

HV2701

Sym

Parameter

0癈

+25癈

+70癈

Units

Conditions

Min

Max

Min

Typ

Max

Min

Max

ONS

Small Signal Switch
On-Resistance

SIG

= 5mA

= +40V

= -160V

SIG

= 200mA

SIG

= 5mA

= +100V

= -100V

SIG

= 200mA

SIG

= 5mA

= +160V

= -40V

SIG

= 200mA

ONS

Small Signal Switch
On-Resistance Matching

5.0

SIG

= 5mA, V

= +100V,

= -100V

ONL

Large Signal Switch
On-Resistance

SIG

-10V, I

SIG

=1A

INT

Value of output Bleed
Resistor

Output Switch to RGND
I

RINT

= 0.5mA

SOL

Switch Off Leakage per
Switch*

5.0

1.0

礎

SIG

= V

-10V and V

+10V

DC Offset Switch off*

300

100

300

No Load

DC Offset Switch on*

500

100

500

PPQ

Quiescent V

supply

current

礎

All switches off

NNQ

Quiescent V

supply

current

-10

-50

礎

All switches off

PPQ

Quiescent V

supply

current

礎

All switches on, I

= 5mA

NNQ

Quiescent V

supply

current

-10

-50

礎

All switches on, I

= 5mA

Switch output peak current

3.0

2.0

SIG

duty cycle < 0.1%

Output switching
frequency

kHz

Duty cycle = 50%

Average V

supply current

6.5

7.0

8.0

= +40V

= -160V

All output
switches are
turning On and
Off at 50KHz
with no load.

= +100V

= -100V

4.0

5.5

= +160V

= -40V

4.0

5.0

5.5

Average V

supply current

6.5

7.0

8.0

= +40V

= -160V

= +100V

= -100V

4.0

5.0

5.5

= +160V

=-40V

4.0

5.0

5.5

Average V

supply

current

4.0

CLK

= 5MHz, V

= 5.0V

DDQ

Quiescent V

supply

current

礎

All logic inputs are static

SOR

Data out source current

0.45

0.70

0.40

OUT

= V

-0.7V

SINK

Data out sink current

0.45

0.70

0.40

OUT

= 0.7V

Logic input capacitance

DC Electrical Characteristics

(over recommended operating conditions unless otherwise noted)

* See Test Circuits on page 5

NR102405

HV2701

AC Electrical Characteristics

(over recommended operating conditions, V

= 5.0V, t

= t

5ns, 50% duty cycle, C

LOAD

= 20pF unless otherwise noted)

Sym

Parameter

0癈

+25癈

+70癈

Units

Conditions

Min

Max

Min

Typ

Max

Min

Max

Set Up Time Before LE
Rises

WLE

Time Width of LE

= 3.0V

= 5.0V

Clock Delay Time to Data
Out

100

= 3.0V

= 5.0V

WCL

Time Width of CL

Set Up Time Data to Clock

= 3.0V

= 5.0V

Hold Time Data from
Clock

= 3.0 or 5.0V

CLK

Clock Frequency

MHz

= 3.0V

= 5.0V

Clock Rise and Fall Times

Turn ON Time*

5.0

祍

SIG

= V

-10V, R

LOAD

= 10K

OFF

Turn OFF Time*

5.0

祍

SIG

= V

-10V, R

LOAD

= 10K

dv/dt

Maximum V

SIG

Slew Rate

v/ns

= +40V, V

= -160V

= +100V, V

= -100V

= +160V, V

= -40V

Off Isolation*

-30

-33

-30

f = 5.0MHz, 1K//15pF load

-58

f = 5.0MHz, 50 load

Switch Crosstalk*

-60

-70

-60

f = 5.0MHz, 50 load

Output Switch Isolation
Diode Current

300

300ns pulse width,
2.0% duty cycle

SG(OFF)

Off Capacitance SW to
GND

5.0

0V, f = 1.0MHz

SG(ON)

On Capacitance SW to
GND

0V, f = 1.0MHz

SPK

Output Voltage Spike*

150

= +40V, V

= -160V,

LOAD

= 50ohm

-V

SPK

150

= +100V, V

= -100V,

LOAD

= 50ohm

-V

SPK

150

= +160V, V

= -40V,

LOAD

= 50ohm

-V

SPK

Charge Injection*

820

= +40V, V

= -160V,

SIG

= 0V

600

= +100V, V

= -100V,

SIG

= 0V

350

= +160V, V

= -40V,

SIG

= 0V

* See Test Circuits on page 5

NR102405

HV2701

Logic Function Table

INPUT DATA

OUTPUT SWITCH

LATCH

ENABLE CLOCK

Notes:

Th 16 switches operate independently.

Serial data is clocked in on the L to H transition of the CLK.

All 16 switches go to a state retaining their latched condition at the rising edge of LE. When LE is low the shift registers data fl ow through the latch.

4. D

OUT

is high when data in the register 15 is high.

Shift registers clocking has no effect on the switch states if LE is high.

The CL clear input overrides all other inputs.

Logic Timing Waveforms

DATA

CLOCK

DATA

O UT

OFF

OUT

(TYP )

5 0%

50%

WLE

50%

OFF

50%

WCL

CLR

N � 1

N + 1

5 0%

90%

1 0%

Doc.# DSFP - HV2701
NR102405

HV2701

Pin Name

TQFP-48

SW4B

SW4A

SW3B

SW3A

SW2B

SW2A

SW1B

SW1A

SW0B

SW0A

GND

CLK

CLR

OUT

RGND

SW15B

SW15A

SW14B

SW14A

SW13B

SW13A

SW12B

SW12A

SW11B

SW11A

SW10B

SW10A

SW9B

SW9A

SW8B

SW8A

SW7B

SW7A

SW6B

SW6A

SW5B

SW5A

1,2,14,16,35,36

Pin Confi guration and Package Outline - 48-Lead TQFP (1.4mm) (FG)

BSC

� - 7�

0.354

� 0.01

(8.992

� 0.254)

0.275

� 0.004

(6.985

� 0.102)

0.008

� 0.003

(0.2032

� 0.0762)

0.020

(0.508)

0.055

� 0.004

(1.397

� 0.102)

0.039

(0.991)

0.059

� 0.004

(1.498

� 0.102)

0.354

� 0.01

(8.992

� 0.254)

0.024

� 0.008

(0.610

� 0.203)

0.275

� 0.004

(6.985

� 0.102)

Measurement Legend =

Dimensions in Inches

Dimensions in Millimeters

Pin 1

Pin 12

NC = No Internal Connection.

协谢械泻褌褉芯薪薪褘泄 泻芯屑锌芯薪械薪褌: HV2701FG-G

协谢械泻褌褉芯薪薪褘泄泻芯屑锌芯薪械薪褌: HV2701FG-G