MAX11629EEE+T Maxim Integrated, MAX11629EEE+T Datasheet

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MAX11629EEE+T

Manufacturer Part Number
MAX11629EEE+T
Description
Analog to Digital Converters - ADC 12-Bit 8Ch 300ksps 3.6V Precision ADC
Manufacturer
Maxim Integrated
Datasheet

Specifications of MAX11629EEE+T

Rohs
yes
Number Of Channels
8
Architecture
SAR
Conversion Rate
300 KSPs
Resolution
12 bit
Input Type
Single-Ended
Interface Type
3-Wire (SPI, Microwire), QSPI
Operating Supply Voltage
2.7 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Maximum Power Dissipation
667 mW
Minimum Operating Temperature
- 40 C
Number Of Converters
1
Voltage Reference
2.048 V
The MAX11626–MAX11629/MAX11632/MAX11633 are
serial 12-bit analog-to-digital converters (ADCs) with an
internal reference. These devices feature on-chip FIFO,
scan mode, internal clock mode, internal averaging,
and AutoShutdown™. The maximum sampling rate is
300ksps using an external clock. The MAX11632/
MAX11633 have 16 input channels; the MAX11628/
MAX11629 have 8 input channels; and the MAX11626/
MAX11627 have 4 input channels. These six devices
operate from either a +3V supply or a +5V supply, and
contain a 10MHz SPI-/QSPI™-/MICROWIRE
ble serial port.
The MAX11626–MAX11629 are available in 16-pin
QSOP packages. The MAX11632/MAX11633 are avail-
able in 24-pin QSOP packages. All six devices are
specified over the extended -40°C to +85°C tempera-
ture range.
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.
AutoShutdown is a trademark of Maxim Integrated Products, Inc.
QSPI is a trademark of Motorola, Inc.
MICROWIRE is a registered trademark of National Semiconductor Corp.
19-5323; Rev 4; 10/11
________________________Applications
Pin Configurations continued at end of data sheet.
System Supervision
Data-Acquisition Systems
Industrial Control Systems
Patient Monitoring
Data Logging
Instrumentation
TOP VIEW
() MAX11626/MAX11627 ONLY
AIN7/(CNVST)
AIN4 (N.C.)
AIN5 (N.C.)
AIN6 (N.C.)
AIN0
AIN1
AIN2
AIN3
________________________________________________________________ Maxim Integrated Products
1
2
3
4
5
6
7
8
General Description
+
MAX11626–
MAX11629
Pin Configurations
QSOP
with FIFO and Internal Reference
16
15
14
13
12
11
10
9
EOC
DOUT
DIN
SCLK
CS
V
GND
REF
DD
®
-compati-
o Analog Multiplexer with Track/Hold
o Single Supply
o Internal Reference
o External Reference: 1V to V
o 16-Entry First-In/First-Out (FIFO)
o Scan Mode, Internal Averaging, and Internal Clock
o Accuracy: ±1 LSB INL, ±1 LSB DNL, No Missing
o 10MHz 3-Wire SPI-/QSPI-/MICROWIRE-Compatible
o Small Packages
Note: All devices are specified over the -40°C to +85°C operating
temperature range.
+ Denotes a lead(Pb)-free/RoHS-compliant package.
/V denotes an automotive qualified part.
MAX11626EEE+
MAX11627EEE+
MAX11628EEE+
MAX11628EEE/V+
MAX11629EEE+
MAX11632EEG+
MAX11633EEG+
12-Bit, 300ksps ADCs
16 Channels (MAX11632/MAX11633)
8 Channels (MAX11628/MAX11629)
4 Channels (MAX11626/MAX11627)
2.7V to 3.6V (MAX11627/MAX11629/MAX11633)
4.75V to 5.25V
(MAX11626/MAX11628/MAX11632)
2.5V (MAX11627/MAX11629/MAX11633)
4.096V (MAX11626/MAX11628/MAX11632)
Codes Over Temperature
Interface
16-Pin QSOP (MAX11626–MAX11629)
24-Pin QSOP (MAX11632/MAX11633)
PART
NUMBER
INPUTS
Ordering Information
OF
16
16
4
4
8
8
8
RANGE (V)
4.75 to 5.25
4.75 to 5.25
4.75 to 5.25
4.75 to 5.25
VOLTAGE
DD
2.7 to 3.6
2.7 to 3.6
2.7 to 3.6
SUPPLY
Features
PIN
PACKAGE
16 QSOP
16 QSOP
16 QSOP
16 QSOP
16 QSOP
24 QSOP
24 QSOP
1

Related parts for MAX11629EEE+T

MAX11629EEE+T Summary of contents

Page 1

... System Supervision Data-Acquisition Systems Industrial Control Systems Patient Monitoring Data Logging Instrumentation AutoShutdown is a trademark of Maxim Integrated Products, Inc. QSPI is a trademark of Motorola, Inc. MICROWIRE is a registered trademark of National Semiconductor Corp. Pin Configurations TOP VIEW + AIN0 1 AIN1 ...

Page 2

ADCs with FIFO and Internal Reference ABSOLUTE MAXIMUM RATINGS V to GND ..............................................................-0.3V to +6V DD CS, SCLK, DIN, EOC, DOUT to GND.........-0. AIN0–AIN13, AIN_, CNVST/AIN_, REF to GND ...........................................-0. Maximum Current into Any ...

Page 3

ELECTRICAL CHARACTERISTICS (continued +2.7V to +3.6V (MAX11627/MAX11629/MAX11633 300kHz 4.8MHz external clock (50% duty cycle), V SCLK (MAX11626/MAX11628/MAX11632 PARAMETER SYMBOL CONVERSION RATE Power-Up Time Acquisition Time Conversion Time External Clock Frequency Aperture Delay ...

Page 4

ADCs with FIFO and Internal Reference ELECTRICAL CHARACTERISTICS (continued +2.7V to +3.6V (MAX11627/MAX11629/MAX11633 300kHz 4.8MHz external clock (50% duty cycle), V SCLK (MAX11626/MAX11628/MAX11632 PARAMETER SYMBOL DIGITAL INPUTS (SCLK, ...

Page 5

TIMING CHARACTERISTICS (Figure +2.7V to +3.6V (MAX11627/MAX11629/MAX11633 300kHz 4.8MHz (50% duty cycle), V SCLK MAX11628/MAX11632 MIN PARAMETER SYMBOL SCLK Clock Period SCLK Pulse Width High SCLK Pulse ...

Page 6

ADCs with FIFO and Internal Reference V = +5V +4.096V 4.8MHz REF SCLK V = +3V +2.5V 4.8MHz REF SCLK DIFFERENTIAL NONLINEARITY vs. OUTPUT CODE 1.0 ...

Page 7

V = +5V +4.096V 4.8MHz REF SCLK V = +3V +2.5V 4.8MHz REF SCLK SUPPLY CURRENT vs. SUPPLY VOLTAGE 2000 1800 INTERNAL REFERENCE 1600 1400 1200 EXTERNAL REFERENCE ...

Page 8

ADCs with FIFO and Internal Reference V = +5V +4.096V 4.8MHz REF SCLK V = +3V +2.5V 4.8MHz REF SCLK SHUTDOWN SUPPLY CURRENT vs. TEMPERATURE 1.0 ...

Page 9

V = +5V +4.096V 4.8MHz REF SCLK V = +3V +2.5V 4.8MHz REF SCLK GAIN ERROR vs. SUPPLY VOLTAGE 0.7 0.6 0.5 0.4 0.3 0.2 0.1 MAX11626/MAX11628/MAX11632 f ...

Page 10

ADCs with FIFO and Internal Reference MAX11626 MAX11628 MAX11627 MAX11629 (4 CHANNELS) (8 CHANNELS — — — — 1–7 1–4 — — — — — ...

Page 11

CS t CSS0 t CL SCLK DIN t DOE DOUT Figure 1. Detailed Serial-Interface Timing Diagram CS DIN SCLK CNVST AIN1 AIN2 AIN15 REF Figure 2. Functional Diagram Detailed Description The MAX11626–MAX11629/MAX11632/MAX11633 are low-power, serial-output, multichannel ...

Page 12

ADCs with FIFO and Internal Reference Converter Operation The MAX11626–MAX11629/MAX11632/MAX11633 ADCs use a successive-approximation register (SAR) conversion technique and an on-chip T/H block to con- vert voltage signals into a 12-bit digital result. This sin- gle-ended configuration supports ...

Page 13

True Differential Analog Input T/H The equivalent circuit of Figure 3 shows the MAX11626–MAX11629/MAX11632/MAX11633’s input architecture. In track mode, a positive input capacitor is connected to AIN0–AIN15. A negative input capacitor is connected to GND. For external T/H timing, use ...

Page 14

ADCs with FIFO and Internal Reference Conversion Register Select active analog input channels per scan and scan modes by writing to the conversion register. Table 2 details channel selection and the four scan modes. Request a scan by ...

Page 15

Table 3. Setup Register* BIT NAME BIT — 7 (MSB) Set select setup register. — 6 Set select setup register. Clock mode and CNVST configuration. Resets power-up. CKSEL1 5 Clock mode ...

Page 16

ADCs with FIFO and Internal Reference Table 4. Averaging Register* BIT NAME BIT — 7 (MSB) Set select averaging register. — 6 Set select averaging register. — 5 Set ...

Page 17

Power-Up Default State The MAX11626–MAX11629/MAX11632/MAX11633 power up with all blocks in shutdown, including the ref- erence. All registers power up in state 00000000, except for the setup register, which powers up in clock mode 10 (CKSEL1 = 1) Output Data ...

Page 18

ADCs with FIFO and Internal Reference CNVST (ACQUISITION1) (ACQUISITION2) CS (CONVERSION1) SCLK DOUT EOC REQUEST MULTIPLE CONVERSIONS BY SETTING CNVST LOW FOR EACH CONVERSION. Figure 5. Clock Mode 01 Timing (CONVERSION BYTE) DIN CS SCLK DOUT EOC THE ...

Page 19

DIN (ACQUISITION1) CS SCLK DOUT EOC EXTERNALLY TIMED ACQUISITION, SAMPLING AND CONVERSION WITHOUT CNVST. Figure 7. Clock Mode 11 Timing Initiate a conversion by writing a byte to the conversion register followed by 16 SCLK cycles pulsed ...

Page 20

ADCs with FIFO and Internal Reference 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 ...

Page 21

FIFO and Internal Reference Pin Configurations (continued) TOP VIEW + AIN0 1 24 EOC AIN1 2 23 DOUT AIN2 3 22 DIN AIN3 4 21 SCLK MAX11632 AIN4 MAX11633 AIN5 AIN6 7 18 ...

Page 22

... Maxim reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance. 22 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2011 Maxim Integrated Products DESCRIPTION Maxim is a registered trademark of Maxim Integrated Products, Inc ...

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