Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsData collecting ICsData acquisition IC - AD converter (ADC) External , Internal QSOP 16

General Description

The MAX11600–MAX11605 low-power, 8-bit, multichan-

nel, analog-to-digital converters (ADCs) feature internal

track/hold (T/H), voltage reference, clock, and an

C-compatible 2-wire serial interface. These devices

operate from a single supply and require only 350µA at

the maximum sampling rate of 188ksps. Auto-

Shutdown™ powers down the devices between conver-

sions, reducing supply current to less than 1µA at low

throughput rates. The MAX11600/MAX11601 provide 4

analog input channels each, the MAX11602/MAX11603

provide 8 analog input channels each while the

MAX11604/MAX11605 provide 12 analog input channels.

The analog inputs are software configurable for unipolar or

bipolar and single-ended or pseudo-differential operation.

The full-scale analog input range is determined by the

internal reference or by an externally applied reference

voltage ranging from 1V to V

. The MAX11601/

MAX11603/MAX11605 feature a 2.048V internal refer-

ence and the MAX11600/MAX11602/MAX11604 feature

a 4.096V internal reference.

The MAX11600/MAX11601 are available in 8-pin SOT23

packages. The MAX11602–MAX11605 are available in

16-pin QSOP packages. The MAX11600–MAX11605 are

guaranteed over the extended industrial temperature

range (-40°C to +85°C). Refer to the MAX11606–

MAX11611 for 10-bit devices and to the MAX11612–

MAX11617 for 12-bit devices.

Applications

Handheld Portable Applications

Medical Instruments

Battery-Powered Test Equipment

Solar-Powered Remote Systems

Received-Signal-Strength Indicators

System Supervision

Features

o High-Speed I

C-Compatible Serial Interface

400kHz Fast Mode

1.7MHz High-Speed Mode

o Single Supply

2.7V to 3.6V (MAX11601/MAX11603/MAX11605)

4.5V to 5.5V (MAX11600/MAX11602/MAX11604)

o Internal Reference

2.048V (MAX11601/MAX11603/MAX11605)

4.096V (MAX11600/MAX11602/MAX11604)

o External Reference: 1V to V

o Internal Clock

o 4-Channel Single-Ended or 2-Channel Pseudo-

Differential (MAX11600/MAX11601)

o 8-Channel Single-Ended or 4-Channel Pseudo-

Differential (MAX11602/MAX11603)

o 12-Channel Single-Ended or 6-Channel Pseudo-

Differential (MAX11604/MAX11605)

o Internal FIFO with Channel-Scan Mode

o Low Power

350µA at 188ksps

110µA at 75ksps

8µA at 10ksps

1µA in Power-Down Mode

o Software Configurable Unipolar/Bipolar

o Small Packages

8-Pin SOT23 (MAX11600/MAX11601)

16-Pin QSOP (MAX11602–MAX11605)

MAX11600–MAX11605

2.7V to 3.6V and 4.5V to 5.5V, Low-Power,

4-/8-/12-Channel 2-Wire Serial 8-Bit ADCs

________________________________________________________________

Maxim Integrated Products

Ordering Information/Selector Guide

19-4554; Rev 2; 3/10

PART TEMP RANGE PIN-PACKAGE

TUE

(LSB)

INPUT

CHANNELS

INTERNAL

REFERENCE (V)

TOP

MARK

MAX11600EKA+ -40°C to +85°C 8 SOT23 ±2 4 4.096 AEQH

MAX11601EKA+ -40°C to +85°C 8 SOT23 ±2 4 2.048 AEQI

MAX11602EEE+ -40°C to +85°C 16 QSOP ±1 8 4.096 —

MAX11603EEE+ -40°C to +85°C 16 QSOP ±1 8 2.048 —

MAX11604EEE+ -40°C to +85°C 16 QSOP ±1 12 4.096 —

MAX11605EEE+ -40°C to +85°C 16 QSOP ±1 12 2.048 —

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

AutoShutdown is a trademark of Maxim Integrated Products, Inc.

Pin Configurations and Typical Operating Circuit appear

at end of data sheet.

EVALUATION KIT

AVAILABLE

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.

Summary of content (23 pages)

PAGE 1
9-4554; Rev 2; 3/10 KIT ATION EVALU E L B AVAILA 2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/8-/12-Channel 2-Wire Serial 8-Bit ADCs The MAX11600–MAX11605 low-power, 8-bit, multichannel, analog-to-digital converters (ADCs) feature internal track/hold (T/H), voltage reference, clock, and an I2C-compatible 2-wire serial interface. These devices operate from a single supply and require only 350µA at the maximum sampling rate of 188ksps.
PAGE 2
MAX11600–MAX11605 2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/8-/12-Channel 2-Wire Serial 8-Bit ADCs ABSOLUTE MAXIMUM RATINGS VDD to GND ..............................................................-0.3V to +6V AIN0–AIN11, REF to GND ......................-0.3V to the lower of (VDD + 0.3V) and +6V SDA, SCL to GND.....................................................-0.3V to +6V Maximum Current into Any Pin .........................................
PAGE 3
2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/8-/12-Channel 2-Wire Serial 8-Bit ADCs (VDD = 2.7V to 3.6V (MAX11601/MAX11603/MAX11605), VDD = 4.5V to 5.5V (MAX11600/MAX11602/MAX11604). External reference, VREF = 2.048V (MAX11601/MAX11603/MAX11605), VREF = 4.096V (MAX11600/MAX11602/MAX11604). External clock, fSCL = 1.7MHz, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.
PAGE 4
MAX11600–MAX11605 2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/8-/12-Channel 2-Wire Serial 8-Bit ADCs ELECTRICAL CHARACTERISTICS (continued) (VDD = 2.7V to 3.6V (MAX11601/MAX11603/MAX11605), VDD = 4.5V to 5.5V (MAX11600/MAX11602/MAX11604). External reference, VREF = 2.048V (MAX11601/MAX11603/MAX11605), VREF = 4.096V (MAX11600/MAX11602/MAX11604). External clock, fSCL = 1.7MHz, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.
PAGE 5
2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/8-/12-Channel 2-Wire Serial 8-Bit ADCs (VDD = 2.7V to 3.6V (MAX11601/MAX11603/MAX11605), VDD = 4.5V to 5.5V (MAX11600/MAX11602/MAX11604). External reference, VREF = 2.048V (MAX11601/MAX11603/MAX11605), VREF = 4.096V (MAX11600/MAX11602/MAX11604). External clock, fSCL = 1.7MHz, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) PARAMETER SYMBOL Data Hold Time tHD.DAT Data Setup Time tSU.
PAGE 6
Typical Operating Characteristics (VDD = 3.3V (MAX11601/MAX11603/MAX11605), VDD = 5V (MAX11600/MAX11602/MAX11604), fSCL = 1.7MHz, external clock (33% duty cycle), fSAMPLE = 188ksps, single ended, unipolar, TA = +25°C, unless otherwise noted.) A SDA = SCL = VDD 4 INTERNAL 4.096VREF IDD (µA) 300 C 300 INTERNAL 2.048VREF D 200 200 3.0 3.5 4.0 4.5 5.0 0 -40 5.5 -15 10 35 60 2.5 85 3.5 4.0 4.5 5.0 5.5 VDD (V) SHUTDOWN SUPPLY CURRENT vs. TEMPERATURE AVERAGE SUPPLY CURRENT vs.
PAGE 7
2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/8-/12-Channel 2-Wire Serial 8-Bit ADCs 0.3 DNL (LSB) 1.005 1.000 0.995 0.990 0.985 0.980 35 60 0.3 0.2 0.1 0.1 0 -0.1 0 -0.1 -0.2 -0.2 -0.3 -0.3 -0.4 -0.4 85 -0.5 0 50 TEMPERATURE (°C) 100 150 200 250 0 300 50 1.0 MAX11600 toc13 fSAMPLE = 188ksps fIN = 25kHz -40 -60 -80 VREF = 2.048V 0.9 0.8 OFFSET ERROR (LSB) -20 150 200 250 300 OFFSET ERROR vs.
PAGE 8
2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/8-/12-Channel 2-Wire Serial 8-Bit ADCs MAX11600–MAX11605 Pin Description PIN MAX11600 MAX11601 MAX11602 MAX11603 MAX11604 MAX11605 NAME FUNCTION 1, 2, 3 12, 11, 10 12, 11, 10 AIN0, AIN1, AIN2 — 9–5 9–5 AIN3–AIN7 — — 4, 3, 2 AIN8–AIN10 4 — — AIN3/REF Analog Input 3/Reference Input/Output. Selected in the setup register (see Tables 1 and 6). — 1 — REF Reference Input/Output. Selected in the setup register (see Tables 1 and 6).
PAGE 9
2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/8-/12-Channel 2-Wire Serial 8-Bit ADCs tR tF MAX11600–MAX11605 a) F/S-MODE I2C SERIAL-INTERFACE TIMING t SDA tSU.DAT tHD.DAT tHD.STA tLOW tBUF tSU.STA tSU.STO SCL tHD.STA tHIGH tR tF S A Sr P b) HS-MODE I2C SERIAL-INTERFACE TIMING S tRDA tFDA SDA tSU.DAT tHD.DAT tBUF tHD.STA tLOW tSU.STO tSU.STA SCL tHD.STA tHIGH tRCL tFCL tRCL1 S Sr A S HS MODE F/S MODE Figure 1.
PAGE 10
MAX11600–MAX11605 2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/8-/12-Channel 2-Wire Serial 8-Bit ADCs SDA SCL INPUT SHIFT REGISTER VDD INTERNAL OSCILLATOR CONTROL LOGIC SETUP REGISTER GND CONFIGURATION REGISTER AIN0 AIN1 AIN2 AIN3 AIN4 AIN5 AIN6 AIN7 AIN8 AIN9 AIN10 AIN11/REF T/H ANALOG INPUT MUX OUTPUT SHIFT REGISTER AND 12-BYTE RAM 8-BIT ADC REF REFERENCE 4.096V (MAX11604) 2.
PAGE 11
2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/8-/12-Channel 2-Wire Serial 8-Bit ADCs BIT 7 (MSB) BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0 (LSB) REG SEL2 SEL1 SEL0 CLK BIP/UNI RST X BIT NAME DESCRIPTION 7 REG Register bit. 1 = setup byte, 0 = configuration byte (Table 2). 6 SEL2 5 SEL1 4 SEL0 Three bits select the reference voltage and the state of AIN_/REF (MAX11600/MAX11601/MAX11604/MAX11605) or REF (MAX11602/MAX11603) (Table 6). Default to 000 at power-up.
PAGE 12
MAX11600–MAX11605 2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/8-/12-Channel 2-Wire Serial 8-Bit ADCs SCL is high (Figure 5). A repeated START condition (Sr) can be used in place of a STOP condition to leave the bus active and in its current timing mode (see the HS Mode section). Acknowledge Bits Successful data transfers are acknowledged with an acknowledge bit (A) or a not-acknowledge bit (A). Both the master and the MAX11600–MAX11605 (slave) generate acknowledge bits.
PAGE 13
2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/8-/12-Channel 2-Wire Serial 8-Bit ADCs MAX11600–MAX11605 DEVICE SLAVE ADDRESS MAX11600/MAX11601 1100100 MAX11602/MAX11603 1101101 MAX11604/MAX11605 1100101 SLAVE ADDRESS S 1 1 0 0 1 0 0 R/W A SDA 1 SCL 2 3 4 5 6 7 8 9 Figure 7. Slave Address Byte HS MODE MASTER CODE S 0 0 0 0 1 X X X A Sr SDA SCL F/S MODE HS MODE Figure 8.
PAGE 14
MAX11600–MAX11605 2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/8-/12-Channel 2-Wire Serial 8-Bit ADCs MASTER TO SLAVE SLAVE TO MASTER A. 1-BYTE WRITE CYCLE 1 7 1 1 S SLAVE ADDRESS W A 8 1 1 NUMBER OF BITS SETUP OR A P OR Sr CONFIGURATION BYTE MSB DETERMINES WHETHER SETUP OR CONFIGURATION BYTE B.
PAGE 15
2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/8-/12-Channel 2-Wire Serial 8-Bit ADCs BIT 7 (MSB) BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0 (LSB) REG SCAN1 SCAN0 CS3 CS2 CS1 CS0 SGL/DIF BIT 7 6 5 4 3 2 1 NAME REG SCAN1 SCAN0 CS3 CS2 CS1 CS0 0 SGL/DIF DESCRIPTION Register bit. 1 = setup byte (Table 1), 0 = configuration byte. Scan select bits. Two bits select the scanning configuration (Table 5). Default to 00 at power-up. Channel select bits.
PAGE 16
MAX11600–MAX11605 2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/8-/12-Channel 2-Wire Serial 8-Bit ADCs MASTER TO SLAVE SLAVE TO MASTER A. SINGLE CONVERSION WITH INTERNAL CLOCK 1 7 1 1 S SLAVE ADDRESS R A 1 8 tACQ NUMBER OF BITS A P or Sr RESULT CLOCK STRETCH 1 tCONV B.
PAGE 17
2.7V to 3.6V and 4.5V to 5.
PAGE 18
MAX11600–MAX11605 2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/8-/12-Channel 2-Wire Serial 8-Bit ADCs Table 4.
PAGE 19
2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/8-/12-Channel 2-Wire Serial 8-Bit ADCs SCAN1 SCAN0 0 0 Scans up from AIN0 to the input selected by CS3–CS0 (default setting). SCANNING CONFIGURATION 0 1 Converts the input selected by CS3–CS0 eight times.* MAX11600/MAX11601: Scans upper half of channels. Scans up from AIN2 to the input selected by CS1 and CS0. When CS1 and CS0 are set for AIN0, AIN1, and AIN2, the scanning stops at AIN2 (MAX11600/MAX11601).
PAGE 20
MAX11600–MAX11605 2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/8-/12-Channel 2-Wire Serial 8-Bit ADCs OUTPUT CODE 1 LSB = VREF 256 REF 1...111 1...110 1...101 1...100 OUTPUT CODE (TWO'S COMPLEMENT) 1 LSB = VREF 256 REF 0...111 0...110 0...101 0...100 0...001 0...000 1...111 1...011 1...010 1...001 1...000 0...011 0...010 0...001 0...000 0 1 2 3 252 253 254 255 256 -128 -127 -126 -125 -1 0 +1 +124 +125 +126 +127 +128 NEGATIVE INPUT INPUT VOLTAGE (LSB) INPUT VOLTAGE (LSB) Figure 12.
PAGE 21
2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/8-/12-Channel 2-Wire Serial 8-Bit ADCs Integral Nonlinearity Integral nonlinearity (INL) is the deviation of the values on an actual transfer function from a straight line. This straight line can be either a best-straight-line fit or a line drawn between the end points of the transfer function, once offset and gain errors have been nullified. The INL is measured using the end point method.
PAGE 22
2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/8-/12-Channel 2-Wire Serial 8-Bit ADCs MAX11600–MAX11605 Pin Configurations Typical Operating Circuit 5V TOP VIEW VDD + AIN0 1 8 VDD AIN1 2 7 GND 6 SDA 5 SCL AIN2 MAX11600 MAX11601 3 AIN3/REF 4 AIN0 AIN1 AIN2 AIN3/REF ANALOG INPUTS *RS MAX11600– MAX11605 SDA SCL *RS GND 5V SOT23 RP 5V + (REF) AIN11/REF 1 16 VDD (N.C.) AIN10 2 15 GND (N.C.) AIN9 3 14 SDA (N.C.
PAGE 23
2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/8-/12-Channel 2-Wire Serial 8-Bit ADCs PAGES CHANGED REVISION NUMBER REVISION DATE 0 4/09 Introduction of the MAX11600/MAX11601/MAX11603 — 1 7/09 Introduction of the MAX11602/MAX11604/MAX11605 1 2 3/10 Changed top mark on the MAX11600/MAX11601 1 DESCRIPTION Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied.