MAX1030BCTI-T Maxim Integrated, MAX1030BCTI-T Datasheet

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MAX1030BCTI-T

Manufacturer Part Number
MAX1030BCTI-T
Description
Analog to Digital Converters - ADC
Manufacturer
Maxim Integrated
Datasheet

Specifications of MAX1030BCTI-T

Number Of Channels
16/8
Architecture
SAR
Conversion Rate
300 KSPs
Resolution
10 bit
Input Type
Single-Ended/Differential
Snr
70 dB
Interface Type
SPI
Operating Supply Voltage
5 V
Maximum Operating Temperature
+ 70 C
Mounting Style
SMD/SMT
Package / Case
TQFN EP
Maximum Power Dissipation
762 mW
Minimum Operating Temperature
0 C
Number Of Converters
1
Voltage Reference
4.096 V
The MAX1026/MAX1028/MAX1030 are serial 10-bit ana-
log-to-digital converters (ADCs) with an internal reference
and an internal temperature sensor. These devices fea-
ture on-chip FIFO, scan mode, internal clock mode, inter-
nal averaging, and AutoShutdown™. The maximum
sampling rate is 300ksps using an external clock. The
MAX1030 has 16 input channels, the MAX1028 has 12
input channels, and the MAX1026 has 8 input channels.
All input channels are configurable for single-ended or
differential inputs in unipolar or bipolar mode. All three
devices operate from a +5V supply and contain a 10MHz
SPI™/QSPI™/MICROWIRE™-compatible serial port.
The MAX1030 is available in 28-pin 5mm x 5mm TQFN
with exposed pad and 24-pin QSOP packages. The
MAX1026/MAX1028 are only available in QSOP pack-
ages. All three devices are specified over the extended
-40°C to +85°C temperature 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.
19-2853; Rev 4; 4/11
AutoShutdown is a trademark of Maxim Integrated Products, Inc.
SPI/QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
________________________Applications
Pin Configurations continued at end of data sheet.
TOP VIEW
System Supervision
Data-Acquisition Systems
Industrial Control Systems
Patient Monitoring
Data Logging
Instrumentation
CNVST/AIN7
REF-/AIN6
AIN0
AIN1
AIN2
AIN3
AIN4
AIN5
________________________________________________________________ Maxim Integrated Products
1
2
3
4
5
6
7
8
General Description
+
MAX1026
QSOP
Temp Sensor, Internal Reference
16
15
14
13
12
11
10
9
10-Bit 300ksps ADCs with FIFO,
EOC
DOUT
DIN
CS
SCLK
V
GND
REF+
DD
o Internal Temperature Sensor (±0.7°C Accuracy)
o 16-Entry First-In/First-Out (FIFO)
o Analog Multiplexer with True Differential
o Accuracy: ±1 LSB INL, ±1 LSB DNL, No Missing
o Scan Mode, Internal Averaging, and Internal Clock
o Low-Power Single +5V Operation
o Internal 4.096V Reference or External Differential
o 10MHz 3-Wire SPI/QSPI/MICROWIRE-Compatible
o Space-Saving 28-Pin 5mm x 5mm TQFN Package
+ Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
Ordering Information continued at end of data sheet.
MAX1026BCEE+T
MAX1026BEEE+T
MAX1028BCEP+T
MAX1028BEEP+T
Track/Hold
Codes Over Temperature
Reference
Interface
16-, 12-, 8-Channel Single Ended
8-, 6-, 4-Channel True Differential
(Unipolar or Bipolar)
2.3mA at 300ksps
PART
AIN0
AIN1
AIN2
AIN3
AIN4
AIN5
AIN6
AIN7
AIN8
AIN9
10
1
2
3
4
5
6
7
8
9
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
+
Ordering Information
0°C to +70°C
0°C to +70°C
MAX1028
QSOP
Pin Configurations
20
19
18
17
16
15
14
13
12
11
EOC
DOUT
DIN
CS
SCLK
V
GND
REF+
CNVST/AIN11
REF-/AIN10
DD
PIN-PACKAGE
16 QSOP
16 QSOP
20 QSOP
20 QSOP
Features
1

Related parts for MAX1030BCTI-T

MAX1030BCTI-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. SPI/QSPI are trademarks of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor Corp. TOP VIEW + AIN0 1 AIN1 ...

Page 2

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

Page 3

ELECTRICAL CHARACTERISTICS (continued +5V ±5 300kHz SAMPLE SCLK Typical values are +25°C.) A PARAMETER SYMBOL CONVERSION RATE Power-Up Time Acquisition Time Conversion Time t External Clock Frequency f Aperture Delay Aperture ...

Page 4

ADCs with FIFO, Temp Sensor, Internal Reference ELECTRICAL CHARACTERISTICS (continued +5V ±5 300kHz SAMPLE SCLK Typical values are +25°C.) A PARAMETER SYMBOL DIGITAL INPUTS (SCLK, DIN, CS, CNVST)(Note 8) ...

Page 5

TIMING CHARACTERISTICS (Figure 1) PARAMETER SYMBOL SCLK Clock Period SCLK Duty Cycle SCLK Fall to DOUT Transition CS Rise to DOUT Disable CS Fall to DOUT Enable DIN to SCLK Rise Setup SCLK Rise to DIN Hold C S Fal ...

Page 6

ADCs with FIFO, Temp Sensor, Internal Reference (V = +5V +4.096V 4.8MHz REF SCLK SFDR vs. FREQUENCY 120 100 0 100 1000 FREQUENCY (kHz) SHUTDOWN ...

Page 7

V = +4.096V 4.8MHz REF SCLK INTERNAL REFERENCE VOLTAGE vs. TEMPERATURE 4.051 4.050 4.049 4.048 4.047 -40 - TEMPERATURE (°C) GAIN ERROR vs. SUPPLY VOLTAGE 0.5 0 -0.5 -1.0 4.75 ...

Page 8

ADCs with FIFO, Temp Sensor, Internal Reference PIN MAX1030 MAX1030 MAX1028 MAX1026 TQFN QSOP 1, 17, 19, — — 25 2–12, 26, 1–14 — 27, 28 — — 1–10 — — — — — — 11 ...

Page 9

CS t CSS SCLK DIN t DOE DOUT Figure 1. Detailed Serial-Interface Timing Diagram CS DIN SCLK CNVST AIN1 AIN2 AIN15 REF- REF+ Figure 2. Functional Diagram Detailed Description The MAX1026/MAX1028/MAX1030 are low-power, seri- al-output, multichannel ...

Page 10

ADCs with FIFO, Temp Sensor, Internal Reference Converter Operation The MAX1026/MAX1028/MAX1030 ADCs use a fully dif- ferential, successive-approximation register (SAR) con- version technique and an on-chip T/H block to convert temperature and voltage signals into a 10-bit digital ...

Page 11

REF AIN0-AIN15 DAC GND (SINGLE ENDED); AIN0, AIN2, AIN4…AIN14 CIN+ (DIFFERENTIAL) HOLD GND CIN- (SINGLE ENDED); AIN1, AIN3, AIN5…AIN15 HOLD (DIFFERENTIAL Figure 3. Equivalent Input Circuit Address the unipolar and bipolar registers through the setup register (bits ...

Page 12

ADCs with FIFO, Temp Sensor, Internal Reference Applications Information Register Descriptions The MAX1026/MAX1028/MAX1030 communicate between the internal registers and the external circuitry through the SPI/QSPI-compatible serial interface. Table 1 details the registers and the bit names. Tables 2–7 ...

Page 13

Table 2. Conversion Register* BIT BIT FUNCTION NAME — 7 (MSB) Set select conversion register. CHSEL3 6 Analog input channel select. CHSEL2 5 Analog input channel select. CHSEL1 4 Analog input channel select. CHSEL0 3 Analog input ...

Page 14

ADCs with FIFO, Temp Sensor, Internal Reference Table 3. Setup Register* BIT NAME BIT — 7 (MSB) Set to zero to select setup register. — 6 Set select setup register. Clock mode and CNVST configuration. ...

Page 15

Power-Up Default State The MAX1026/MAX1028/MAX1030 power up with all blocks in shutdown, including the reference. All registers power up in state 00000000, except for the setup regis- ter, which powers up in clock mode 10 (CKSEL1 = 1). Temperature Measurements ...

Page 16

ADCs with FIFO, Temp Sensor, Internal Reference Table 6. Averaging Register* BIT NAME BIT — 7 (MSB) Set to zero to select averaging register. — 6 Set to zero to select averaging register. — 5 Set to 1 ...

Page 17

Internally Timed Acquisitions and Conversions Using CNVST Performing Conversions in Clock Mode 00 In clock mode 00, the wake up, acquisition, conversion, and shutdown sequences are initiated through CNVST and performed automatically using the internal oscilla- tor. Results are added ...

Page 18

ADCs with FIFO, Temp Sensor, Internal Reference CNVST (ACQUISITION1) (ACQUISITION2) CS (CONVERSION1) SCLK DOUT EOC REQUEST MULTIPLE CONVERSIONS BY SETTING CNVST LOW FOR EACH CONVERSION DON'T CARE. Figure 5. Clock Mode 01 (CONVERSION BYTE) DIN CS ...

Page 19

DIN (ACQUISITION1) CS SCLK DOUT EOC EXTERNALLY TIMED ACQUISITION, SAMPLING AND CONVERSION WITHOUT CNVST DON'T CARE. Figure 7. Clock Mode 11 Externally Clocked Acquisitions and Conversions Using the Serial Interface Performing Conversions in Clock Mode 11 In clock ...

Page 20

ADCs with FIFO, Temp Sensor, Internal Reference OUTPUT CODE FULL-SCALE TRANSITION 111 110 101 011 010 00 . ...

Page 21

... AIN13 13 AIN12 Ordering Information (continued) PART MAX1030BCEG+T MAX1030BEEG+T ) ⎞ MAX1030BCTI ⎟ ⎠ MAX1030BETI Exposed paddle (connect to GND). For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status ...

Page 22

... 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. 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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