ADS8519

Manufacturer Part NumberADS8519
DescriptionThe ADS8519 is a complete 16-bit sampling analog-to-digital (A/D) converter using state-of-the-art CMOS structures
ManufacturerTexas Instruments
ADS8519 datasheets

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Specifications of ADS8519

Resolution(bits)16Sample Rate (max)(sps)250kSPS
# Input Channels1InterfaceSerial SPI
Dnl(max)(+/-lsb)1Inl(max)(+/-lsb)2
Inl (+/-)(max)(%)0.00300Snr(db)93
Sinad(db)92Input Range+8.192V; +/-5V, 10V
Power Consumption(typ)(mw)100Reference ModeInt , Ext
ArchitectureSARAnalog Voltage Av/dd(min)(v)4.75
Analog Voltage Av/dd(max)(v)5.25Digital Supply(min)(v)1.65
Digital Supply(max)(v)5.25Operating Temperature Range(c)-40 to 85
Pin/package28SSOPIntegrated FeaturesInternal Reference
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16-Bit, 250kSPS, Serial, CMOS, Sampling
FEATURES
1
• 0V to 8.192V, ±5V, and ±10V Input Ranges
23
•
93dB SNR with 20kHz Input
•
±1.5LSB Max INL
•
±1LSB Max DNL; 16 Bits, No Missing Codes
•
SPI™-Compatible Serial Output with
Daisy-Chain (TAG) Feature and 3-State Bus
•
5V Analog Supply, 1.65V to 5.25V I/O Supply
•
Pinout Similar to 16-Bit
ADS7809
and 12-Bit
ADS7808
and
ADS8508
•
No External Precision Resistors Required
•
Uses Internal or External Reference
•
110mW Typ Power Dissipation at 250kSPS
•
28-Pin SSOP Package
•
Simple DSP Interface
APPLICATIONS
•
Industrial Process Control
•
Data Acquisition Systems
•
Digital Signal Processing
•
Medical Equipment
•
Instrumentation
7k
R1
IN
7k
R2
IN
2.87k
25.67k
R3
IN
CAP
REF
1
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.
SPI is a trademark of Motorola, Inc.
2
All other trademarks are the property of their respective owners.
3
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.
ANALOG-TO-DIGITAL CONVERTER
Check for Samples:
ADS8519
DESCRIPTION
The ADS8519 is a complete 16-bit sampling
analog-to-digital (A/D) converter using state-of-the-art
CMOS structures. It contains a complete 16-bit,
capacitor-based, successive approximation register
(SAR)
reference, clock, and a serial data interface. Data can
be output using the internal clock or synchronized to
an external data clock. The ADS8519 also provides
an output synchronization pulse for ease-of-use with
(Low-Speed)
standard DSP processors.
The ADS8519 is specified at a 250kSPS sampling
rate over the full temperature range. Internal precision
resistors provide various input ranges including ±10V,
±5V, and 0V to 8.192V, while the innovative design
allows operation from a single 5V supply with power
dissipation under 125mW.
The ADS8519 is available in a 28-pin SSOP
package, and is fully specified for operation over the
industrial –40°C to +85°C temperature range.
Successive Approximation Register
CDAC
Internal
Buffer
+4.096V Ref
4k
SLAS462D – JUNE 2007 – REVISED SEPTEMBER 2010
A/D
converter
with
sample-and-hold,
Clock
EXT/INT
BUSY
DATACLK
Serial
Data
TAG
Out
Comparator
DATA
and
Control
R/C
SB/BTC
CS
PWRD
Copyright © 2007–2010, Texas Instruments Incorporated
ADS8519

Related parts for ADS8519

Part Number DescriptionManufacturer Datasheet
ADS8504  ADS8504 The ADS8504 is a complete 12-bit sampling A/D converter using state-of-the-art CMOS structures Texas Instruments
ADS8505  ADS8505 The ADS8505 is a complete 16-bit sampling A/D converter using state-of-the-art CMOS structures Texas Instruments
ADS8506  ADS8506 The ADS8506 is a complete low power, single 5-V supply, 12-bit sampling analog-to-digital (A/D) converter Texas Instruments
ADS8507  ADS8507 The ADS8507 is a complete low power, single 5-V supply, 16-bit sampling analog-to-digital (A/D) converter Texas Instruments
ADS8508  ADS8508 The ADS8508 is a complete 12-bit sampling analog-to-digital (A/D) converter using state-of-the-art CMOS structures Texas Instruments
ADS8509  ADS8509 The ADS8509 is a complete 16-bit sampling analog-to-digital (A/D) converter using state-of-the-art CMOS structures Texas Instruments
  ADS8512 The ADS8512 is a complete low-power, single 5-V supply, 12-bit sampling analog-to-digital(A/D) converter Texas Instruments
  ADS8513 The ADS8513 is a complete low-power, single 5V supply, 16-bit sampling analog-to-digital (A/D) converter Texas Instruments
  ADS8515 The ADS8515 is a complete 16-bit sampling analog-to-digital (A/D) converter using state-of-the-art CMOS structures Texas Instruments
ADS8517  ADS8517 The ADS8517 is a complete low-power, single 5-V supply, 16-bit sampling analog-to-digital (A/D) converter Texas Instruments
ADS8528  ADS8528 The ADS8528/48/68 contain eight low-power, 12-, 14-, or 16-bit, successive approximation register (SAR)-based analog-to-digital converters (ADCs) with true bipolar inputs Texas Instruments
ADS8548  ADS8548 The ADS8528/48/68 contain eight low-power, 12-, 14-, or 16-bit, successive approximation register (SAR)-based analog-to-digital converters (ADCs) with true bipolar inputs Texas Instruments
ADS8555  ADS8555 The ADS8555 contains six low-power, 16-bit, successive approximation register (SAR)-based analog-to-digital converters (ADCs) with true bipolar inputs Texas Instruments
ADS8556  ADS8556 The ADS8556/7/8 contain six low-power, 16-, 14-, or 12-bit, successive approximation register (SAR) based analog-to-digital converters (ADCs) with true bipolar inputs Texas Instruments
ADS8557  ADS8557 The ADS8556/7/8 contain six low-power, 16-, 14-, or 12-bit, successive approximation register (SAR) based analog-to-digital converters (ADCs) with true bipolar inputs Texas Instruments

ADS8519 Summary of contents

  • Page 1

    ... The ADS8519 is available in a 28-pin SSOP package, and is fully specified for operation over the industrial –40°C to +85°C temperature range. Successive Approximation Register ...

  • Page 2

    ... ADS8519I MIN TYP 50 250 2) Product Folder Link(s): ADS8519 www.ti.com (1) ORDERING TRANSPORT NUMBER MEDIA, QTY ADS8519IBDB Tube ADS8519IBDBR Tape and Reel, 2000 ADS8519IDB Tube ADS8519IDBR Tape and Reel, 2000 UNIT ±25V ±25V ±25V +V + 0.3V to AGND2 – 0.3V ANA ±0. – ...

  • Page 3

    ... Figure 30. Product Folder Link(s): ADS8519 ADS8519 ADS8519IB MIN TYP MAX UNIT (2) 3 –1.5 1.5 LSB 2 –1 1 LSB 16 Bits 0.67 LSB –0.25 0.25 %FSR –0.5 –0.05 0.5 ±7 ppm/°C –0.05 0.003 ...

  • Page 4

    ... DIG = 1.65V to 5.25V = DIG 1.65 ANA 4.75 5 ANA 0.1 ANA 22 ANA 110 20 –40 –55 –65 67 Product Folder Link(s): ADS8519 www.ti.com ADS8519IB MAX MIN TYP MAX 0.6 –0.3 0.6 + 0.3 0 0.3 DIG DIG DIG ±10 ±10 ±10 ±10 Serial, 16-bits Binary 2's complement or straight binary Conversion results only available ...

  • Page 5

    ... BUSY CAP REF AGND2 9 20 TAG DATA SB/BTC 12 17 DATACLK 13 16 EXT/INT SYNC 14 15 DGND Product Folder Link(s): ADS8519 ADS8519 SLAS462D – JUNE 2007 – REVISED SEPTEMBER 2010 Submit Documentation Feedback 5 ...

  • Page 6

    ... CAP 6 Reference buffer capacitor, 2.2mF tantalum capacitor to ground. Serial data output. Data are synchronized to DATACLK, with the format determined by the level of SB/BTC. In the external clock mode, after 16 bits of data, the ADS8519 outputs the level input on TAG DATA long low and R/C is high (see both the rising and falling edges of DATACLK, and between conversions DATA stays at the level of the TAG input when the conversion was started ...

  • Page 7

    ... External DATACLK R/C Set Low, Discontinuous Ext DATACLK BUSY t su2 External DATACLK CS Set Low, Discontinuous Ext DATACLK Figure 1. Critical Timing Product Folder Link(s): ADS8519 ADS8519 SLAS462D – JUNE 2007 – REVISED SEPTEMBER 2010 MIN TYP MAX UNIT 2 2.2 1.8 4 270 ...

  • Page 8

    ... No more data to Nth Data TAG = 0 shift out starts READ w1 su1 Copyright © 2007–2010, Texas Instruments Incorporated Product Folder Link(s): ADS8519 www.ti.com d11 Error (N+2)th Accquisition Correction t acq TAG = d11 (N+2)th Accquisition t ...

  • Page 9

    ... D13 D12 D11 D10 D05 Rising DATACLK change DATA, t TAG is not recommended for this mode. There is not enough time without violating t d11 Product Folder Link(s): ADS8519 ADS8519 SLAS462D – JUNE 2007 – REVISED SEPTEMBER 2010 su1 ...

  • Page 10

    ... Nth Conversion Data D15 D14 D13 D12 D11 D10 D05 Starts READ w1 su1 TAG is not recommended for this mode. There is not enough time without violating t . d11 Product Folder Link(s): ADS8519 www.ti.com su1 D04 D03 ...

  • Page 11

    ... Figure 8. Conversion and Read Timing with Continuous External DATACLK (EXT/INT Tied High) Read Copyright © 2007–2010, Texas Instruments Incorporated TIMING DIAGRAMS (continued) After Conversions (Not Recommended) Product Folder Link(s): ADS8519 ADS8519 SLAS462D – JUNE 2007 – REVISED SEPTEMBER 2010 Submit Documentation Feedback 11 ...

  • Page 12

    ... SLAS462D – JUNE 2007 – REVISED SEPTEMBER 2010 Figure 9. Conversion and Read Timing with Continuous External DATACLK (EXT/INT Tied High) Read Previous Conversion Results During Conversion (Not Recommended) 12 Submit Documentation Feedback TIMING DIAGRAMS (continued) Copyright © 2007–2010, Texas Instruments Incorporated Product Folder Link(s): ADS8519 www.ti.com ...

  • Page 13

    ... External Reference 0.08 ±10V Range 0.06 0.04 0.02 0 -0.02 -0.04 -0.06 -0.08 -0.1 -40 - Free-Air Temperature - C ° A Figure 17. Product Folder Link(s): ADS8519 ADS8519 INTERNAL VOLTAGE REFERENCE vs FREE-AIR TEMPERATURE 4.104 4.102 4.1 4.098 4.096 4.094 4.092 4.09 -40 - Free-Air Temperature - C ° A Figure 12. NEGATIVE FULL-SCALE ERROR vs FREE-AIR TEMPERATURE ...

  • Page 14

    ... INPUT FREQUENCY 105 100 100 1000 f - Input Frequency - kHz i Figure 25. Copyright © 2007–2010, Texas Instruments Incorporated Product Folder Link(s): ADS8519 www.ti.com SIGNAL-TO-NOISE AND DISTORTION vs FREE-AIR TEMPERATURE 100 f = 250kSPS 20kHz -40 ...

  • Page 15

    ... In the external clock mode, this configuration means that the ADS8519 clocks out data whenever R/C is brought high and the external clock is active. In the internal clock mode, data are clocked out every convert cycle, regardless of the states of CS and R/C. The ADS8519 provides a TAG input for cascading multiple converters together. ...

  • Page 16

    ... Submit Documentation Feedback ; see the Timing Requirements d11 timing specification. Data read during sampling must be d11 Table 1. DATACLK Pulses DATACLK PULSES REQUIRED WITH SYNC 17 18 Copyright © 2007–2010, Texas Instruments Incorporated Product Folder Link(s): ADS8519 www.ti.com table). WITHOUT SYNC 16 17 ...

  • Page 17

    ... TAG FEATURE The TAG feature allows the data from multiple ADS8519 converters to be read on a single serial line. The converters are cascaded together using the DATA pins as outputs and the TAG pins as inputs, as illustrated in Figure 28. The DATA pin of the last converter drives the processor serial data input. Data are then shifted through each converter, synchronous to the externally supplied data clock, onto the serial data line ...

  • Page 18

    ... ADS8519 SLAS462D – JUNE 2007 – REVISED SEPTEMBER 2010 ANALOG INPUTS The ADS8519 has three analog input ranges, as shown in with internal resistors. The gain specification is factory-calibrated with 0.1%, 0.25W, external resistors, as shown in Figure 29 and Figure 30. The external resistors can be omitted if a larger gain error is acceptable or if using software calibration ...

  • Page 19

    ... The internal reference is approximately 4.096V. The reference, whether internal or external, is buffered internally with the output on pin 6 (CAP). The ADS8519 is factory-tested with 2.2mF capacitors connected to pin 6 (CAP) and pin 7 (REF). Each capacitor should be placed as close as possible to its pin. The capacitor on pin 7 band-limits the internal reference noise. ...

  • Page 20

    ... The internal buffer is capable of driving ±2mA loads, but any load can cause perturbations of the reference at the CDAC, degrading performance. It should be pointed out that, unlike other devices with a similar input structure, the ADS8519 does not require a second high-speed amplifier used as a buffer to isolate the CAP pin from the signal-dependent current in the R3 IN The external reference voltage can vary from 3 ...

  • Page 21

    ... REF 6 CAP 9 AGND2 (b) ±10V Without Hardware Trim Figure 32. Gain Adjust Trim Product Folder Link(s): ADS8519 ADS8519 SLAS462D – JUNE 2007 – REVISED SEPTEMBER 2010 DIGITAL OUTPUT STRAIGHT BINARY (SB/BTC HIGH) BINARY CODE HEX CODE 7FFF 1111 1111 1111 1111 FFFF 0000 ...

  • Page 22

    ... Corrected pin names and numbers in paragraphs discussing internal and external reference operation and factory testing of device with 2.2mF capacitors. .............................................................................................................................. 22 Submit Documentation Feedback REVISION HISTORY Copyright © 2007–2010, Texas Instruments Incorporated Product Folder Link(s): ADS8519 www.ti.com Page 6 Page 3 19 ...

  • Page 23

    ... ADS8519IBDBG4 ACTIVE SSOP ADS8519IBDBR ACTIVE SSOP ADS8519IBDBRG4 ACTIVE SSOP ADS8519IDB ACTIVE SSOP ADS8519IDBG4 ACTIVE SSOP ADS8519IDBR ACTIVE SSOP ADS8519IDBRG4 ACTIVE SSOP (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. ...

  • Page 24

    Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or ...

  • Page 25

    ... TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Type Drawing ADS8519IBDBR SSOP DB ADS8519IDBR SSOP DB PACKAGE MATERIALS INFORMATION Pins SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 28 2000 330.0 16.4 8.1 28 2000 330.0 16.4 8.1 Pack Materials-Page 1 5-Jul-2011 Pin1 (mm) ...

  • Page 26

    ... Device Package Type ADS8519IBDBR SSOP ADS8519IDBR SSOP PACKAGE MATERIALS INFORMATION Package Drawing Pins SPQ Length (mm 2000 DB 28 2000 Pack Materials-Page 2 5-Jul-2011 Width (mm) Height (mm) 346.0 346.0 33.0 346.0 346.0 33.0 ...

  • Page 27

    DB (R-PDSO-G**) 28 PINS SHOWN 0, 2,00 MAX PINS ** DIM A MAX A MIN NOTES: A. All linear dimensions are in millimeters. B. This drawing is subject to change without notice. C. Body dimensions do not ...

  • Page 28

    ... Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’ ...

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