Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsInterface ICsInterface IC - analogue switches PLCC 28

General Description

The MAX4800A/MAX4802A provide high-voltage switch-

ing on eight channels for ultrasonic imaging and printer

applications. The devices utilize BCDMOS process

technology to provide eight high-voltage low-charge-

injection SPST switches, controlled by a 20MHz serial

interface. Data is clocked into an internal 8-bit shift reg-

ister 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 devices operate with a wide range of high-voltage

supplies including: V

= +100V/-100V, +185V/-15V,

and +40V/-160V. The digital interface operates from a

separate V

supply from +2.7V to +6V. Digital inputs

DIN, CLK, LE, and CLR are +6V tolerant, independent

of the V

supply voltage. The MAX4802A provides

integrated 35kΩ bleed resistors on each switch terminal

to discharge capacitive loads.

The devices are drop-in replacements for the Supertex

HV2203 and HV2303. They are available in the 48-pin

LQFP, 26-bump CSBGA, and 28-pin PLCC packages.

All devices are specified for the commercial 0°C to

+70°C temperature range.

Applications

Ultrasound Imaging

Printers

Features

♦ Fast SPI™ Interface 20MHz

♦ Pin-Compatible Replacement for Supertex HV2203

(MAX4800A)

♦ Pin-Compatible Replacement for Supertex HV2303

(MAX4802A)

♦ Flexible High-Voltage Supplies Up to V

- V

= 200V

♦ Low-Charge-Injection, Low-Capacitance 22

ΩΩ

Switches

♦ DC to 50MHz Analog-Signal Frequency Range

♦ -77dB Off-Isolation at 5MHz

♦ Low 10µA Quiescent Current

♦ Integrated Bleed Resistors (MAX4802A Only)

♦ Available in Standard PLCC, LQFP, and CSBGA

Packages

MAX4800A/MAX4802A

Low-Charge-Injection, 8-Channel, High-Voltage

Analog Switches with 20MHz Serial Interface

________________________________________________________________

Maxim Integrated Products

19-4120; Rev 1; 2/11

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.

Ordering Information/

Selector Guide

PART

BLEED

RESISTORS

SECOND

SOURCE

PIN-

PACKAGE

MAX4800ACXZ+* No — 26 CSBGA

MAX4800ACQI+ No HV2203PJ-G 28 PLCC

MAX4800ACCM+* No HV2203FG-G 48 LQFP

MAX4802ACXZ+* Yes — 26 CSBGA

MAX4802ACQI+ Yes HV2303PJ-G 28 PLCC

MAX4802ACCM+* Yes HV2303FG-G 48 LQFP

Note: All devices are specified over the commercial 0°C to +70°C

temperature range.

Future product—contact factory for availability.

Denotes a lead(Pb)-free/RoHS-compliant package.

SPI is a trademark of Motorola, Inc.

CLR

DIN

N.C.

GND

N.C. (RGND)

N.C.

CLK

COM4

N.C.

NO4

N.C.

COM3

N.C.

COM2

NO3

N.C.

COM5

N.C.

NO1

N.C.

NO0

COM1

N.C.

NO2

N.C.

NO5

N.C.

NO6

N.C.

COM6

N.C.

NO7

N.C.

COM7

DOUT

N.C.

MAX4800A

MAX4802A

COM0

() MAX4802A ONLY

34 56

34 33 32 31

LQFP

(7mm x 7mm)

TOP VIEW

Pin/Bump Configurations

Pin/Bump Configurations continued at end of data sheet.

Summary of content (15 pages)

PAGE 1
9-4120; Rev 1; 2/11 Low-Charge-Injection, 8-Channel, High-Voltage Analog Switches with 20MHz Serial Interface ♦ Fast SPI™ Interface 20MHz ♦ Pin-Compatible Replacement for Supertex HV2203 (MAX4800A) ♦ Pin-Compatible Replacement for Supertex HV2303 (MAX4802A) ♦ Flexible High-Voltage Supplies Up to VPP - VNN = 200V Ω ♦ Low-Charge-Injection, Low-Capacitance 22Ω Switches ♦ DC to 50MHz Analog-Signal Frequency Range ♦ -77dB Off-Isolation at 5MHz ♦ Low 10µA Quiescent Current ♦ Integrated Bleed Resistors (MAX4802A
PAGE 2
MAX4800A/MAX4802A Low-Charge-Injection, 8-Channel, High-Voltage Analog Switches with 20MHz Serial Interface ABSOLUTE MAXIMUM RATINGS (All voltages referenced to GND.) VDD Logic Supply Voltage........................................-0.3V to +7V VPP - VNN Supply Voltage ....................................................220V VPP Positive Supply Voltage......................-0.3V to (VNN + 220V) VNN Negative Supply Voltage ..............................+0.3V to -220V Logic Inputs LE, CLR, CLK, DIN ..........
PAGE 3
Low-Charge-Injection, 8-Channel, High-Voltage Analog Switches with 20MHz Serial Interface (VDD = +2.7V to +6V, VPP = +40V to (VNN + 200V), VNN = -40V to -160V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.
PAGE 4
MAX4800A/MAX4802A Low-Charge-Injection, 8-Channel, High-Voltage Analog Switches with 20MHz Serial Interface ELECTRICAL CHARACTERISTICS (continued) (VDD = +2.7V to +6V, VPP = +40V to (VNN + 200V), VNN = -40V to -160V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2) PARAMETER SYMBOL CONDITIONS Logic Input Capacitance CIN Logic Input Leakage I IN DOUT Low Voltage VOL I SINK = 1mA DOUT High Voltage VOH I SOURCE = 0.
PAGE 5
Low-Charge-Injection, 8-Channel, High-Voltage Analog Switches with 20MHz Serial Interface (VDD = +2.7V to +6V, VPP = +40V to (VNN + 200V), VNN = -40V to -160V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.
PAGE 6
Typical Operating Characteristics (VDD = +5V, VPP = +100V, VNN = -100V, TA = +25°C, unless otherwise noted.) IDD SUPPLY CURRENT vs. CLOCK FREQUENCY 0.7 0.6 0.5 DIN = 01010101 0.3 25 ON-RESISTANCE (Ω) -90 30 -85 -80 -75 MAX4800A/2A toc03 -95 OFF-ISOLATION (dB) 0.8 RS = RL = 50Ω MAX4800A/2A toc02 -100 MAX4800A/2A toc01 ISW = 5mA 20 15 ISW = 200mA 10 -70 0.2 5 -65 0.1 DIN = 00000000 -60 0 0.01 0.1 1 0 1 10 10 20 30 50 60 ON-RESISTANCE vs.
PAGE 7
Low-Charge-Injection, 8-Channel, High-Voltage Analog Switches with 20MHz Serial Interface PIN/BUMP MAX4800A LQFP MAX4800A CSBGA MAX4800A PLCC NAME FUNCTION 1 E4 26 COM5 Analog Switch 5—Common Terminal 2, 4, 6, 7, 9, 11, 13, 15, 17, 19, 21, 23, 26, 27, 30, 31, 32, 38, 40, 42, 44, 46, 48 D6 9, 11, 15 N.C. 3 E1 27 COM4 5 E3 28 NO4 8 D1 1 COM3 10 D3 2 NO3 12 D4 3 COM2 14 C3 4 NO2 16 C4 5 COM1 18 A4 6 NO1 No Connection. Not connected internally.
PAGE 8
MAX4800A/MAX4802A Low-Charge-Injection, 8-Channel, High-Voltage Analog Switches with 20MHz Serial Interface Pin/Bump Descriptions (continued) PIN/BUMP MAX4802A LQFP MAX4802A CSBGA MAX4802A PLCC NAME FUNCTION 1 E4 26 COM5 Analog Switch 5—Common Terminal 2, 4, 6, 7, 9, 11,13, 15, 17, 19, 21, 23, 26, 30, 31, 32, 38, 40, 42, 44, 46, 48 — 9, 15 N.C. 8 3 E1 27 COM4 5 E3 28 NO4 8 D1 1 COM3 10 D3 2 NO3 12 D4 3 COM2 14 C3 4 NO2 No Connection. Not connected internally.
PAGE 9
Low-Charge-Injection, 8-Channel, High-Voltage Analog Switches with 20MHz Serial Interface 50% DN+1 50% DN MAX4800A/MAX4802A DIN DN-1 tWL 50% 50% LE tCS 50% 50% CLK tDH tDS tDO DOUT tON ON 90% SWITCH 10% OFF tOFF CLR 50% 50% tWC *FOR SLOWER CLK RATES REFER TO THE MAX4800/MAX4801/MAX4802 DATA SHEET. Figure 1. Serial Interface Timing* Detailed Description The MAX4800A/MAX4802A provide high-voltage switching on eight channels for ultrasound imaging and printer applications.
PAGE 10
MAX4800A/MAX4802A Low-Charge-Injection, 8-Channel, High-Voltage Analog Switches with 20MHz Serial Interface LE CLK DIN D7 D6 D5 D4 D3 D2 D1 MSB DOUT D7 D0 LSB D6 D5 D4 D3 D2 D1 D0 D7 DATA FROM PREVIOUS DATA BYTE POWER-UP DEFAULT: D7–D0 = 0 Figure 2. Latch-Enable Interface Timing The V PP and V NN high-voltage supplies are not required to be symmetrical, but the voltage difference VPP - VNN must not exceed 200V.
PAGE 11
Low-Charge-Injection, 8-Channel, High-Voltage Analog Switches with 20MHz Serial Interface DATA BITS D0 (LSB) D1 D2 D3 D4 CONTROL BITS D5 D6 D7 (MSB) L H L H L H L H L H L H L H X X X X X X X X X X X X X X L H X X FUNCTION LE CLR SW0 L L L L L L L L L L L L L L L L H X L L L L L L L L L L L L L L L L L H Off On SW1 SW2 SW3 SW4 SW5 SW6 SW7 Off On Off On Off On Off On Off On Off On Off On Off Off Off Hold Previous State Off Off Off Off Off X = Don’t care.
PAGE 12
MAX4800A/MAX4802A Low-Charge-Injection, 8-Channel, High-Voltage Analog Switches with 20MHz Serial Interface U10 DIN DIN U11 DIN DOUT MAX4800A CLK CLK LE LE DOUT U1n DIN MAX4800A LE MAX4800A CLK CLK CLR DOUT LE CLR CLR CLR Figure 3.
PAGE 13
Low-Charge-Injection, 8-Channel, High-Voltage Analog Switches with 20MHz Serial Interface VDD VPP MAX4802A COM0 LEVEL SHIFTER DIN CLK NO0 SHIFT REGISTER LATCH COM7 DOUT LEVEL SHIFTER CLR NO7 LE VNN GND RGND 2 COM4 NO3 3 COM5 COM2 4 NO4 NO2 TOP VIEW COM3 Pin/Bump Configurations (continued) 1 28 27 26 + COM1 5 25 NO5 NO1 6 24 NO6 COM0 7 23 COM6 MAX4800A MAX4802A DOUT N.C. (RGND) 11 19 CLR 12 13 14 15 16 17 18 LE 20 CLK 10 DIN COM7 VPP N.C.
PAGE 14
Low-Charge-Injection, 8-Channel, High-Voltage Analog Switches with 20MHz Serial Interface MAX4800A/MAX4802A Pin/Bump Configurations (continued) TOP VIEW 2 1 3 4 5 6 7 8 9 + A4 A MAX4800A MAX4802A NO1 B C3 C4 C5 C6 C7 NO2 COM1 COM0 VPP VNN D5 D6 D7 C D E D1 D3 D4 COM3 NO3 COM2 NO0 N.C.
PAGE 15
Low-Charge-Injection, 8-Channel, High-Voltage Analog Switches with 20MHz Serial Interface REVISION NUMBER REVISION DATE 0 5/08 Initial release 2/11 Changed the DC analog-signal frequency range to 50MHz in the Features section; changed the TQFP package to LQFP in the General Description, Ordering Information, Features, Pin/Bump Configurations, Pin/Bump Descriptions, and Package Information 1 DESCRIPTION PAGES CHANGED — 1, 8, 14 Maxim cannot assume responsibility for use of any circuitry other than