Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsData collecting ICsData acquisition IC - AD converter (ADC) Internal VSSOP 10

ADS1015

12-Bit

ADC

I C

Interface

Voltage

Reference

Oscillator

SCL

SDA

ADDR

ADS1013

AIN1

AIN0

12-Bit

ADC

I C

Interface

Voltage

Reference

Oscillator

ALERT/RDY

SCL

SDA

ADDR

PGA

Comparator

ADS1015

ADS1014

MUX

AIN1

AIN2

AIN0

AIN3

ADS1015

Only

VDD

GND

VDD

GND

ADS1013

ADS1014

ADS1015

www.ti.com

SBAS473C –MAY 2009–REVISED OCTOBER 2009

Ultra-Small, Low-Power, 12-Bit

Analog-to-Digital Converter with Internal Reference

Check for Samples: ADS1013 ADS1014 ADS1015

FEATURES

DESCRIPTION

• ULTRA-SMALL QFN PACKAGE:

The ADS1013, ADS1014, and ADS1015 are

2mm × 1,5mm × 0,4mm

precision analog-to-digital converters (ADCs) with 12

bits of resolution offered in an ultra-small, leadless

• WIDE SUPPLY RANGE: 2.0V to 5.5V

QFN-10 package or an MSOP-10 package. The

• LOW CURRENT CONSUMPTION:

ADS1013/4/5 are designed with precision, power, and

Continuous Mode: Only 150μA

ease of implementation in mind. The ADS1013/4/5

Single-Shot Mode: Auto Shut-Down

feature an onboard reference and oscillator. Data are

• PROGRAMMABLE DATA RATE:

transferred via an I

C-compatible serial interface; four

C slave addresses can be selected. The

128SPS to 3.3kSPS

ADS1013/4/5 operate from a single power supply

• INTERNAL LOW-DRIFT

ranging from 2.0V to 5.5V.

VOLTAGE REFERENCE

The ADS1013/4/5 can perform conversions at rates

• INTERNAL OSCILLATOR

up to 3300 samples per second (SPS). An onboard

• INTERNAL PGA

PGA is available on the ADS1014 and ADS1015 that

• I

C™ INTERFACE: Pin-Selectable Addresses

offers input ranges from the supply to as low as

±256mV, allowing both large and small signals to be

• FOUR SINGLE-ENDED OR TWO

measured with high resolution. The ADS1015 also

DIFFERENTIAL INPUTS (ADS1015)

features an input multiplexer (MUX) that provides two

• PROGRAMMABLE COMPARATOR

differential or four single-ended inputs.

(ADS1014 and ADS1015)

The ADS1013/4/5 operate either in continuous

conversion mode or a single-shot mode that

APPLICATIONS

automatically powers down after a conversion and

• PORTABLE INSTRUMENTATION

greatly reduces current consumption during idle

• CONSUMER GOODS

periods. The ADS1013/4/5 are specified from –40°C

• BATTERY MONITORING

to +125°C.

• TEMPERATURE MEASUREMENT

• FACTORY AUTOMATION AND PROCESS

CONTROLS

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2I2C is a trademark of NXP Semiconductors.

3All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (34 pages)

PAGE 1
AD ADS1013 ADS1014 ADS1015 S101 5 ADS 1015 www.ti.com SBAS473C – MAY 2009 – REVISED OCTOBER 2009 Ultra-Small, Low-Power, 12-Bit Analog-to-Digital Converter with Internal Reference Check for Samples: ADS1013 ADS1014 ADS1015 FEATURES DESCRIPTION • The ADS1013, ADS1014, and ADS1015 are precision analog-to-digital converters (ADCs) with 12 bits of resolution offered in an ultra-small, leadless QFN-10 package or an MSOP-10 package.
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ADS1013 ADS1014 ADS1015 SBAS473C – MAY 2009 – REVISED OCTOBER 2009 www.ti.com This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure.
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ADS1013 ADS1014 ADS1015 www.ti.com SBAS473C – MAY 2009 – REVISED OCTOBER 2009 ELECTRICAL CHARACTERISTICS All specifications at –40°C to +125°C, VDD = 3.3V, and Full-Scale (FS) = ±2.048V, unless otherwise noted. Typical values are at +25°C. ADS1013, ADS1014, ADS1015 PARAMETER TEST CONDITIONS MIN TYP MAX UNIT ANALOG INPUT Full-scale input voltage (1) VIN = (AINP) – (AINN) Analog input voltage AINP or AINN to GND ±4.096/PGA GND Differential input impedance V VDD V See Table 2 FS = ±6.
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ADS1013 ADS1014 ADS1015 SBAS473C – MAY 2009 – REVISED OCTOBER 2009 www.ti.com ELECTRICAL CHARACTERISTICS (continued) All specifications at –40°C to +125°C, VDD = 3.3V, and Full-Scale (FS) = ±2.048V, unless otherwise noted. Typical values are at +25°C. ADS1013, ADS1014, ADS1015 PARAMETER TEST CONDITIONS MIN TYP MAX UNIT 5.5 V 2 μA 5 μA 200 μA POWER-SUPPLY REQUIREMENTS Power-supply voltage 2 Power-down current at 25°C 0.
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ADS1013 ADS1014 ADS1015 www.ti.com SBAS473C – MAY 2009 – REVISED OCTOBER 2009 TIMING REQUIREMENTS tLOW tF tR tHDSTA SCL tHDSTA tHIGH tHDDAT tSUSTO tSUSTA tSUDAT SDA tBUF P S S P Figure 1. I2C Timing Diagram Table 1. I2C Timing Definitions FAST MODE PARAMETER HIGH-SPEED MODE MIN MAX MIN MAX UNIT 0.4 0.01 3.4 MHz SCL operating frequency fSCL 0.
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ADS1013 ADS1014 ADS1015 SBAS473C – MAY 2009 – REVISED OCTOBER 2009 www.ti.com TYPICAL CHARACTERISTICS At TA = +25°C and VDD = 3.3V, unless otherwise noted. OPERATING CURRENT vs TEMPERATURE SHUTDOWN CURRENT vs TEMPERATURE 5.0 300 4.5 Shutdown Current (mA) Operating Current (mA) 250 VDD = 5V 200 150 VDD = 3.3V VDD = 2V 100 4.0 3.5 VDD = 2V 3.0 2.5 2.0 VDD = 3.3V 1.5 1.0 50 0.5 0 -40 -20 0 20 40 60 80 100 120 VDD = 5V 0 -40 140 0 -20 20 Temperature (°C) Figure 2. FS = ±4.
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ADS1013 ADS1014 ADS1015 www.ti.com SBAS473C – MAY 2009 – REVISED OCTOBER 2009 OVERVIEW The ADS1013/4/5 are very small, low-power, 12-bit, delta-sigma (ΔΣ) analog-to-digital converters (ADCs). The ADS1013/4/5 are extremely easy to configure and design into a wide variety of applications, and allow precise measurements to be obtained with very little effort. Both experienced and novice users of data converters find designing with the ADS1013/4/5 family to be intuitive and problem-free.
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ADS1013 ADS1014 ADS1015 SBAS473C – MAY 2009 – REVISED OCTOBER 2009 www.ti.com QUICKSTART GUIDE For example, to write to the configuration register to set the ADS1013/4/5 to continuous conversion mode and then read the conversion result, send the following bytes in this order: This section provides a brief example of ADS1013/4/5 communications. Refer to subsequent sections of this data sheet for more detailed explanations.
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ADS1013 ADS1014 ADS1015 www.ti.com SBAS473C – MAY 2009 – REVISED OCTOBER 2009 MULTIPLEXER The ADS1015 contains an input multiplexer, as shown in Figure 10. Either four single-ended or two differential signals can be measured. Additionally, AIN0 and AIN1 may be measured differentially to AIN3. The multiplexer is configured by three bits in the Config register. When single-ended signals are measured, the negative input of the ADC is internally connected to GND by a switch within the multiplexer.
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ADS1013 ADS1014 ADS1015 SBAS473C – MAY 2009 – REVISED OCTOBER 2009 www.ti.com 0.7V CA1 AINP S1 ZCM S2 0.7V Equivalent Circuit AINP CB S1 ZDIFF S2 AINN AINN 0.7V CA2 ZCM fCLK = 250kHz 0.7V Figure 12. Simplified Analog Input Circuit The common-mode input impedance is measured by applying a common-mode signal to shorted AINP and AINN inputs and measuring the average current consumed by each pin.
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ADS1013 ADS1014 ADS1015 www.ti.com SBAS473C – MAY 2009 – REVISED OCTOBER 2009 DATA FORMAT The ADS1013/4/5 provide 12 bits of data in binary twos complement format. The positive full-scale input produces an output code of 7FF0h and the negative full-scale input produces an output code of 8000h. The output clips at these codes for signals that exceed full-scale. Table 4 summarizes the ideal output codes for different input signals. Figure 13 shows code transitions versus input voltage. Table 4.
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ADS1013 ADS1014 ADS1015 SBAS473C – MAY 2009 – REVISED OCTOBER 2009 www.ti.com COMPARATOR (ADS1014/15 ONLY) The ADS1014/5 are each equipped with a customizable comparator that can issue an alert on the ALERT/RDY pin. This feature can significantly reduce external circuitry for many applications. The comparator can be implemented as either a traditional comparator or a window comparator via the COMP_MODE bit in the Config register.
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ADS1013 ADS1014 ADS1015 www.ti.com SBAS473C – MAY 2009 – REVISED OCTOBER 2009 SMBus ALERT RESPONSE When configured in latching mode (COMP_LAT = '1' in the Config register), the ALERT/RDY pin can be implemented with an SMBus alert. The pin asserts if the comparator detects a conversion that exceeds an upper or lower threshold. This interrupt is latched and can be cleared only by reading conversion data, or by issuing a successful SMBus alert response and reading the asserting device I2C address.
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ADS1013 ADS1014 ADS1015 SBAS473C – MAY 2009 – REVISED OCTOBER 2009 www.ti.com When the master has finished communicating with a slave, it may issue a STOP condition. When a STOP condition is issued, the bus becomes idle again. The master may also issue another START condition. When a START condition is issued while the bus is active, it is called a repeated START condition. See the Timing Requirements section for a timing diagram showing the ADS1013/4/5 I2C transaction.
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ADS1013 ADS1014 ADS1015 www.ti.com SBAS473C – MAY 2009 – REVISED OCTOBER 2009 POINTER REGISTER When reading from the ADS1013/4/5, the previous value written to the Pointer register determines the register that is read from. To change which register is read, a new value must be written to the Pointer register. To write a new value to the Pointer register, the master issues a slave address byte with the R/W bit low, followed by the Pointer register byte.
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ADS1013 ADS1014 ADS1015 SBAS473C – MAY 2009 – REVISED OCTOBER 2009 Bits [14:12] www.ti.com MUX[2:0]: Input multiplexer configuration (ADS1015 only) These bits configure the input multiplexer. They serve no function on the ADS1013/4.
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ADS1013 ADS1014 ADS1015 www.ti.com SBAS473C – MAY 2009 – REVISED OCTOBER 2009 Lo_thresh AND Hi_thresh REGISTERS register MSB to ‘0’. However, in all other cases, the Hi_thresh register must be larger than the Lo_thresh register. The threshold register formats are shown in Table 10. When set to RDY mode, the ALERT/RDY pin outputs the state of the OS bit when in single-shot mode and pulses when in continuous conversion mode.
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ADS1013 ADS1014 ADS1015 SBAS473C – MAY 2009 – REVISED OCTOBER 2009 www.ti.
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ADS1013 ADS1014 ADS1015 www.ti.
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ADS1013 ADS1014 ADS1015 SBAS473C – MAY 2009 – REVISED OCTOBER 2009 www.ti.com APPLICATION INFORMATION The following sections give example circuits and suggestions for using the ADS1013/4/5 in various situations. The ADS1013/4/5 interface directly to standard mode, fast mode, and high-speed mode I2C controllers. Any microcontroller I2C peripheral, including master-only and non-multiple-master I2C peripherals, can operate with the ADS1013/4/5.
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ADS1013 ADS1014 ADS1015 www.ti.com SBAS473C – MAY 2009 – REVISED OCTOBER 2009 CONNECTING MULTIPLE DEVICES Connecting multiple ADS1013/4/5s to a single bus is simple. Using the address pin, the ADS1013/4/5 can be set to one of four different I2C addresses. An example showing four ADS1013/4/5 devices is given in Figure 21. Up to four ADS1013/4/5s (using different address pin configurations) can be connected to a single bus. Note that only one set of pull-up resistors is needed per bus.
PAGE 22
ADS1013 ADS1014 ADS1015 SBAS473C – MAY 2009 – REVISED OCTOBER 2009 www.ti.com GND VDD GND ADS1015 10 SCL 2 I C Pull-Up Resistors 1kW to 10kW (typ.) VDD 1 ADDR 2 3 4 10 ADS1015 SDA 9 ALERT/RDY VDD 8 1 ADDR SDA 9 GND AIN3 7 2 ALERT/RDY VDD 8 AIN0 AIN2 6 3 GND AIN3 7 4 AIN0 AIN2 6 Microcontroller or Microprocessor AIN1 2 SCL 2 I C Pull-Up Resistors 1kW to 10kW (typ.
PAGE 23
ADS1013 ADS1014 ADS1015 www.ti.com SBAS473C – MAY 2009 – REVISED OCTOBER 2009 SINGLE-ENDED INPUTS The ADS1015 input range is bipolar differential with respect to the reference. The single-ended circuit shown in Figure 23 covers only half the ADS1015 input scale because it does not produce differentially negative inputs; therefore, one bit of resolution is lost. Although the ADS1015 has two differential inputs, the device can easily measure four single-ended signals.
PAGE 24
ADS1013 ADS1014 ADS1015 SBAS473C – MAY 2009 – REVISED OCTOBER 2009 www.ti.com LOW-SIDE CURRENT MONITOR Figure 24 shows a circuit for a low-side shunt-type current monitor. The circuit monitors the voltage across a shunt resistor, which is sized as small as possible while giving a measurable output voltage. This voltage is amplified by an OPA335 low-drift op amp, and the result is read by the ADS1014/5. It is suggested that the ADS1014/5 be operated at a gain of 16.
PAGE 25
ADS1013 ADS1014 ADS1015 www.ti.com SBAS473C – MAY 2009 – REVISED OCTOBER 2009 REVISION HISTORY NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision B (September 2009) to Revision C Page • Deleted operating temperature bullet from Features section ............................................................................................... 1 • Deleted operating temperature range parameter from Absolute Maximum Ratings table ............
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 11-Apr-2013 Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
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PACKAGE MATERIALS INFORMATION www.ti.com 19-Nov-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing ADS1013IDGSR VSSOP DGS 10 SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 2500 330.0 12.4 5.3 B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 3.3 1.3 8.0 12.0 Q1 ADS1013IDGST VSSOP DGS 10 250 180.0 12.4 5.3 3.3 1.3 8.0 12.0 Q1 ADS1013IRUGR X2QFN RUG 10 3000 179.0 8.4 1.75 2.25 0.65 4.0 8.
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PACKAGE MATERIALS INFORMATION www.ti.com 19-Nov-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) ADS1013IDGSR VSSOP DGS 10 2500 370.0 355.0 55.0 ADS1013IDGST VSSOP DGS 10 250 195.0 200.0 45.0 ADS1013IRUGR X2QFN RUG 10 3000 203.0 203.0 35.0 ADS1013IRUGT X2QFN RUG 10 250 203.0 203.0 35.0 ADS1014IDGSR VSSOP DGS 10 2500 370.0 355.0 55.0 ADS1014IDGST VSSOP DGS 10 250 195.0 200.0 45.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.