MAX14800_09 Datasheet, PDF (1/18 Pages) Maxim Integrated Products – Low-Charge Injection, 16-Channel, High-Voltage Analog Switches

19-4484; Rev 1; 9/09
Low-Charge Injection, 16-Channel,
High-Voltage Analog Switches
General Description
The MAX14800–MAX14803 provide high-voltage
switching on 16 channels for ultrasonic imaging and
printer applications. The devices utilize HVCMOS
process technology to provide 16 high-voltage low-
charge-injection SPST switches, controlled by a digital
interface. Data is clocked into an internal 16-bit shift
register and retained by a programmable latch with
enable and clear inputs. A power-on reset function
ensures that all switches are open on power-up.
The MAX14800–MAX14803 operate with a wide range
of high-voltage supplies including: V_PP/V_NN = +100V/
-100V, +200V/0V, and +40V/-160V. The digital interface
operates from a separate +2.7V to +5.5V V_DD supply.
Digital inputs DIN, CLK, LE, and CLR operate on the
V_DD supply voltage.
The MAX14801/MAX14803 provide integrated 35kΩ
bleed resistors on each switch terminal to discharge
capacitive loads. The MAX14802/MAX14803 provide
integrated clamping diodes for overvoltage protection
against positive overshoot.
The MAX14800–MAX14803 are available in the
48-pin TQFP package. All devices are specified for the
commercial 0°C to +70°C temperature range.
Ultrasound Imaging
Printers
Applications
Features
♦ Integrated Overvoltage Protection (MAX14802/
MAX14803)
♦ 20MHz Serial Interface (5V)
♦ HVCMOS Technology for High Performance
♦ Individually Programmable High-Voltage Analog
Switches
♦ Very Low 5µA (typ) Quiescent Current
♦ DC-to-20MHz Low-Voltage Analog Signal
Frequency Range
♦ 2.7V to 5.5V Logic Supply Voltage
♦ Low-Charge Injection, Low-Capacitance R_L
Switches
♦ -77dB (typ) Off-Isolation at 5MHz (R_L = 50Ω)
♦ Daisy-Chainable Serial Interface
♦ Flexible High-Voltage Supplies (V_PP - V_NN = 250V)
Pin Configuration appears at end of data sheet.
Ordering Information/Selector Guide
PART
SWITCH
CHANNELS
BLEED
RESISTOR
OVP
SECOND
SOURCE
MAX14800CCM+*
16
No
No
HV2601
MAX14801CCM+*
16
Yes
No
HV2701
MAX14802CCM+
16
No
Yes
—
MAX14803CCM+
16
Yes
Yes
—
+Denotes a lead(Pb)-free/RoHS-compliant package.
*Future product—contact factory for availability.
Parts with extended temperature range (-40°C to +85°C) are available upon request.
PIN-PACKAGE
48 TQFP
48 TQFP
48 TQFP
48 TQFP
TEMP RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.