MAX1168BCEG+ Maxim Integrated Products, MAX1168BCEG+ Datasheet

IC ADC 16BIT 200KSPS 24-QSOP

MAX1168BCEG+

Manufacturer Part Number
MAX1168BCEG+
Description
IC ADC 16BIT 200KSPS 24-QSOP
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX1168BCEG+

Number Of Bits
16
Sampling Rate (per Second)
200k
Data Interface
MICROWIRE™, QSPI™, Serial, SPI™
Number Of Converters
1
Power Dissipation (max)
762mW
Voltage Supply Source
Analog and Digital
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
24-QSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX1167/MAX1168 low-power, multichannel, 16-
bit analog-to-digital converters (ADCs) feature a suc-
cessive-approximation ADC, integrated +4.096V
reference, a reference buffer, an internal oscillator,
automatic power-down, and a high-speed SPI™/
QSPI™/MICROWIRE™-compatible interface. The
MAX1167/MAX1168 operate with a single +5V analog
supply and feature a separate digital supply, allowing
direct interfacing with +2.7V to +5.5V digital logic.
The MAX1167/MAX1168 consume only 3.6mA (AV
DV
AutoShutdown™ reduces the supply current to 185µA at
10ksps and to less than 10µA at reduced sampling rates.
The MAX1167 includes a 4-channel input multiplexer, and
the MAX1168 accepts up to eight analog inputs.
In addition, digital signal processor (DSP)-initiated con-
versions are simplified with the DSP frame-sync input and
output featured in the MAX1168. The MAX1168 includes
a data-bit transfer input to select between 8-bit-wide or
16-bit-wide data-transfer modes. Both devices feature a
scan mode that converts each channel sequentially or
one channel continuously.
Excellent dynamic performance and low power, com-
bined with ease of use and an integrated reference, make
the MAX1167/MAX1168 ideal for control and data-acqui-
sition operations or for other applications with demanding
power consumption and space requirements. The
MAX1167 is available in a 16-pin QSOP package and the
MAX1168 is available in a 24-pin QSOP package. Both
devices are guaranteed over the commercial (0°C to
+70°C) and extended (-40°C to +85°C) temperature
ranges. Use the MAX1168 evaluation kit to evaluate the
MAX1168.
19-2956; Rev 1; 10/09
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.
SPI/QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
AutoShutdown is a trademark of Maxim Integrated Products, Inc.
Multichannel, 16-Bit, 200ksps Analog-to-Digital
DD
= +5V) at 200ksps when using an external reference.
Motor Control
Industrial Process Control
Industrial I/O Modules
Data-Acquisition Systems
Thermocouple Measurements
Accelerometer Measurements
________________________________________________________________ Maxim Integrated Products
General Description
Applications
DD
=
♦ 16-Bit Resolution, No Missing Codes
♦ +5V Single-Supply Operation
♦ Adjustable Logic Level (+2.7V to +5.25V)
♦ Input Voltage Range: 0 to V
♦ Internal (+4.096V) or External (+3.8V to AV
♦ Internal Track/Hold, 4MHz Input Bandwidth
♦ Internal or External Clock
♦ SPI/QSPI/MICROWIRE-Compatible Serial
♦ 8-Bit-Wide or 16-Bit-Wide Data-Transfer Mode
♦ 4-Channel (MAX1167) or 8-Channel (MAX1168)
♦ Low Power
♦ Small Package Size
Pin Configurations appear at end of data sheet.
MAX1167BCEE
MAX1167BEEE
MAX1168BCEG
MAX1168BEEG
Reference
Interface, MAX1168 Performs DSP-Initiated
Conversions
(MAX1168 Only)
Input Mux
Scan Mode Sequentially Converts Multiple
Channels or One Channel Continuously
3.6mA at 200ksps
1.85mA at 100ksps
185µA at 10ksps
0.6µA in Full Power-Down Mode
16-Pin QSOP (MAX1167)
24-Pin QSOP (MAX1168)
PART
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
0°C to +70°C
0°C to +70°C
Ordering Information
Converters
REF
PIN-
PACKAGE
16 QSOP
16 QSOP
24 QSOP
24 QSOP
Features
DD
(LSB)
INL
±3
±3
±3
±3
)
1

Related parts for MAX1168BCEG+

MAX1168BCEG+ Summary of contents

Page 1

... Thermocouple Measurements Accelerometer Measurements SPI/QSPI are trademarks of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor Corp. AutoShutdown is a trademark of Maxim Integrated Products, Inc. ________________________________________________________________ Maxim Integrated Products 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. ...

Page 2

Multichannel, 16-Bit, 200ksps Analog-to-Digital Converters ABSOLUTE MAXIMUM RATINGS AV to AGND .........................................................-0. DGND.........................................................-0.3V to +6V DD DGND to AGND.....................................................-0.3V to +0.3V AIN_, REF, REFCAP to AGND..................-0.3V to (AV SCLK, CS, DSEL, DSPR, DIN to DGND ...

Page 3

Multichannel, 16-Bit, 200ksps Analog-to-Digital ELECTRICAL CHARACTERISTICS (continued) ( +4.75V to +5.25V SCLK = +4.096V unless otherwise noted. Typical values are MIN MAX PARAMETER SYMBOL Internal ...

Page 4

Multichannel, 16-Bit, 200ksps Analog-to-Digital Converters ELECTRICAL CHARACTERISTICS (continued) ( +4.75V to +5.25V SCLK = +4.096V unless otherwise noted. Typical values are MIN MAX PARAMETER SYMBOL ...

Page 5

Multichannel, 16-Bit, 200ksps Analog-to-Digital TIMING CHARACTERISTICS (Figures and 16) ( +4.75V to +5.25V +4.096V unless otherwise noted. Typical values are at T REF ...

Page 6

Multichannel, 16-Bit, 200ksps Analog-to-Digital Converters TIMING CHARACTERISTICS (Figures and 16) (AV = +4.75V to +5.25V +2.7V to +5.25V (200ksps), external V = +4.096V, T REF A PARAMETER SYMBOL Acquisition Time SCLK to ...

Page 7

Multichannel, 16-Bit, 200ksps Analog-to-Digital ( +5V 4.8MHz SCLK INL vs. CODE 1.5 1.0 0.5 0 -0.5 -1.0 -1.5 0 16384 32768 49152 65536 CODE SINAD vs. FREQUENCY 100 ...

Page 8

Multichannel, 16-Bit, 200ksps Analog-to-Digital Converters ( +5V 4.8MHz SCLK DIGITAL SUPPLY CURRENT vs. DIGITAL SUPPLY VOLTAGE ...

Page 9

Multichannel, 16-Bit, 200ksps Analog-to-Digital ( +5V 4.8MHz SCLK OFFSET ERROR vs. SUPPLY VOLTAGE 200 V = +4.096V REF 100 0 -100 -200 -300 -400 4.75 4.85 4.95 5.05 5.15 5.25 AV (V) ...

Page 10

Multichannel, 16-Bit, 200ksps Analog-to-Digital Converters PIN NAME MAX1167 MAX1168 1 3 DOUT 2 4 SCLK 3 5 DIN EOC AIN0 6 8 AIN1 7 9 AIN2 8 10 AIN3 9 15 REF 10 16 REFCAP 11 ...

Page 11

Multichannel, 16-Bit, 200ksps Analog-to-Digital PIN NAME MAX1167 MAX1168 — 13 AIN6 — 14 AIN7 — 23 DSPX — 24 N.C. DOUT DOUT C = 30pF 1mA LOAD DGND HIGH Figure 1. ...

Page 12

Multichannel, 16-Bit, 200ksps Analog-to-Digital Converters REFERENCE REF AGND AIN0 AIN1 ANALOG-INPUT MULTIPLEXER AIN2 AIN3 SCLK OSCILLATOR CS DIN Figure 3. MAX1167 Functional Diagram In track mode, the analog signal is acquired on the internal hold capacitor. In hold mode, the ...

Page 13

Multichannel, 16-Bit, 200ksps Analog-to-Digital REFERENCE REF AGND AIN0 AIN1 AIN2 AIN3 ANALOG-INPUT MULTIPLEXER AIN4 AIN5 AIN6 AIN7 SCLK OSCILLATOR CS DSEL DSPR DIN Figure 4. MAX1168 Functional Diagram The MAX1168 features a 16-bit-wide data-transfer mode that includes a longer acquisition ...

Page 14

Multichannel, 16-Bit, 200ksps Analog-to-Digital Converters AIN0 ANALOG AIN1 INPUTS AIN2 AIN3 DIN DIN MAX1167 REF 1μF AV +5V DD 0.1μF + 0.1μF Figure 5. MAX1167 Typical Operating Circuit REF MUX R DSON TRACK CAPACITIVE AIN_ DAC C MUX ...

Page 15

Multichannel, 16-Bit, 200ksps Analog-to-Digital Table 2. Channel Select BIT7 BIT6 BIT5 CH SEL2 CH SEL1 CH SEL0 ...

Page 16

Multichannel, 16-Bit, 200ksps Analog-to-Digital Converters t CSW CS t CSS SCLK DIN t DV DOUT Figure 8. Detailed SPI Interface Timing CS COMPLETE CONVERSION SEQUENCE DOUT CONVERSION 0 POWERED UP POWERED DOWN Figure 9. Shutdown Sequence ...

Page 17

Multichannel, 16-Bit, 200ksps Analog-to-Digital CS 1 SCLK MSB DIN DOUT DSPR* DSEL* ADC STATE t ACQ *MAX1168 ONLY Figure 10. SPI External Clock Mode, 8-Bit Data-Transfer Mode, Conversion Timing SCLK rates less than 125kHz can reduce accuracy due to leakage ...

Page 18

Multichannel, 16-Bit, 200ksps Analog-to-Digital Converters SCLK MSB LSB DIN 0 DOUT DSPR DSEL ADC STATE , X = DON T CARE Figure 11. SPI External Clock Mode, 16-Bit Data-Transfer Mode, Conversion Timing (MAX1168 Only ...

Page 19

Multichannel, 16-Bit, 200ksps Analog-to-Digital SCLK INTERNAL CLK DIN DATA DOUT EOC ADC STATE CONFIGURATION , X = DON T CARE DSPR = DSEL = DV DD Figure ...

Page 20

Multichannel, 16-Bit, 200ksps Analog-to-Digital Converters SCLK INTERNAL CLK DATA DIN DOUT EOC ADC STATE , X = DON T CARE Figure 15. SPI Internal Clock Mode, 16-Bit ...

Page 21

Multichannel, 16-Bit, 200ksps Analog-to-Digital CS DSPR 1 SCLK MSB DIN DOUT DSPX ADC STATE t ACQ Figure 17. DSP External Clock Mode, 8-Bit Data-Transfer Mode, Conversion Timing (MAX1168 Only) CS DSPR 1 SCLK MSB DIN DOUT DSPX ADC STATE , ...

Page 22

Multichannel, 16-Bit, 200ksps Analog-to-Digital Converters OUTPUT CODE FULL-SCALE TRANSITION 1111...111 1111...110 1111...101 0000...011 0000...010 0000...001 0000...000 INPUT VOLTAGE (LSB) Figure 19. Unipolar Transfer Function, Full Scale (FS Zero Scale (ZS) = GND setting bits ...

Page 23

Multichannel, 16-Bit, 200ksps Analog-to-Digital I/O SCK MISO V SPI DD SS Figure 20a. SPI Connections 1ST BYTE READ 1 4 SCLK DOUT* *WHEN CS IS HIGH, DOUT = HIGH-Z Figure 20c. SPI/MICROWIRE Interface Timing ...

Page 24

Multichannel, 16-Bit, 200ksps Analog-to-Digital Converters Table 7. Detailed SSPCON Register Contents CONTROL BIT WCOL BIT7 SSPOV BIT6 SSPEN BIT5 CKP BIT4 SSPM3 BIT3 SSPM2 BIT2 SSPM1 BIT1 SSPM0 BIT0 X = Don’t care. Applications Information Internal Reference The internal bandgap ...

Page 25

Multichannel, 16-Bit, 200ksps Analog-to-Digital Table 8. Detailed SSPSTAT Register Contents CONTROL BIT SMP BIT7 CKE BIT6 D/A BIT5 P BIT4 S BIT3 R/W BIT2 UA BIT1 BF BIT0 X = Don’t care SCLK CS DOUT* SAMPLING INSTANT *WHEN ...

Page 26

Multichannel, 16-Bit, 200ksps Analog-to-Digital Converters 1ST BYTE READ 1 4 SCLK DOUT* *WHEN CS IS HIGH, DOUT = HIGH-Z Figure 22b. SPI Interface Timing with PIC16/PIC17 in Master Mode (CKE = 1, CKP = ...

Page 27

Multichannel, 16-Bit, 200ksps Analog-to-Digital EFFECTIVE NUMBER OF BITS (ENOB SAMPLE 0 0 FREQUENCY (kHz) Figure 24. Effective Bits vs. Frequency The DSP mode of the MAX1168 only operates in ...

Page 28

Multichannel, 16-Bit, 200ksps Analog-to-Digital Converters Effective Number of Bits Effective number of bits (ENOB) indicates the global accuracy of an ADC at a specific input frequency and sampling rate. An ideal ADC’s error consists of quanti- zation noise only. With ...

Page 29

Multichannel, 16-Bit, 200ksps Analog-to-Digital TOP VIEW DOUT 1 SCLK 2 DIN 3 EOC 4 AIN0 5 AIN1 6 AIN2 7 AIN3 8 Chip Information TRANSISTOR COUNT: 20,760 PROCESS: BiCMOS ______________________________________________________________________________________ DSPR DSEL 2 15 DGND DOUT ...

Page 30

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 30 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2009 Maxim Integrated Products ...

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