Datasheet

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FEATURES DESCRIPTION

APPLICATIONS

DIN

SCLK

OUTA

OUTB

REF

AGND

D PACKAGE

(TOP VIEW)

TLV5637

SLAS224C – JUNE 1999 – REVISED JUNE 2007

2.7V TO 5.5V LOW-POWER DUAL 10-BIT DIGITAL-TO-ANALOG CONVERTER WITH

INTERNAL REFERENCE AND POWER DOWN

• Dual 10-Bit Voltage Output DAC

The TLV5637 is a dual 10-bit voltage output DAC

with a flexible 3-wire serial interface. The serial

• Programmable Internal Reference

interface allows glueless interface to TMS320 and

• Programmable Settling Time:

SPI™, QSPI™, and Microwire™ serial ports. It is

– 0.8 µs in Fast Mode

programmed with a 16-bit serial string containing 2

– 2.8 µs in Slow Mode control and 10 data bits.

• Compatible With TMS320 and SPI™ Serial

The resistor string output voltage is buffered by a x2

Ports

gain rail-to-rail output buffer. The buffer features a

Class AB output stage to improve stability and

• Differential Nonlinearity <0.1LSB Typ

reduce settling time. The programmable settling time

• Monotonic Over Temperature

of the DAC allows the designer to optimize speed

versus power dissipation. With its on-chip

programmable precision voltage reference, the

• Digital Servo Control Loops

TLV5637 simplifies overall system design.

• Digital Offset and Gain Adjustment

Because of its ability to source up to 1mA, the

• Industrial Process Control

reference can also be used as a system reference.

• Machine and Motion Control Devices

Implemented with a CMOS process, the device is

designed for single supply operation from 2.7V to

• Mass Storage Devices

5.5V. It is available in an 8-pin SOIC package to

reduce board space in standard commercial and

industrial temperature ranges.

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, QSPI are trademarks of Motorola, Inc.

Microwire is a trademark of National Semiconductor Corporation.

All 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 (22 pages)

PAGE 1
TLV5637 www.ti.com SLAS224C – JUNE 1999 – REVISED JUNE 2007 2.7V TO 5.5V LOW-POWER DUAL 10-BIT DIGITAL-TO-ANALOG CONVERTER WITH INTERNAL REFERENCE AND POWER DOWN FEATURES • • • • • • Dual 10-Bit Voltage Output DAC Programmable Internal Reference Programmable Settling Time: – 0.8µs in Fast Mode – 2.8µs in Slow Mode Compatible With TMS320 and SPI™ Serial Ports Differential Nonlinearity <0.
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TLV5637 www.ti.com SLAS224C – JUNE 1999 – REVISED JUNE 2007 These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.
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TLV5637 www.ti.com SLAS224C – JUNE 1999 – REVISED JUNE 2007 ABSOLUTE MAXIMUM RATINGS (1) Over operating free-air temperature range (unless otherwise noted). UNIT Supply voltage (VDD to AGND) 7V Reference input voltage range –0.3 V to VDD + 0.3V Digital input voltage range Operating free-air temperature range, TA –0.3 V to VDD + 0.
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TLV5637 www.ti.com SLAS224C – JUNE 1999 – REVISED JUNE 2007 ELECTRICAL CHARACTERISTICS Over recommended operating conditions (unless otherwise noted). POWER SUPPLY PARAMETER TEST CONDITIONS VDD = 5V, Int. ref. IDD Power supply current No load, All inputs = AGND or VDD, DAC latch = 0x800 VDD = 3V, Int. ref. VDD = 5V, Ext. ref. VDD = 3V, Ext. ref. MIN Fast PSRR (1) (2) Power supply rejection ratio Full scale, See UNIT 4.2 7 mA Slow 2 3.6 mA Fast 3.7 6.3 mA Slow 1.7 3.0 mA Fast 3.
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TLV5637 www.ti.com SLAS224C – JUNE 1999 – REVISED JUNE 2007 ELECTRICAL CHARACTERISTICS (Continued) over recommended operating conditions (unless otherwise noted) REFERENCE PIN CONFIGURED AS OUTPUT (REF) PARAMETER Vref(OUTL) Low reference voltage Vref(OUTH) High reference voltage Iref(source) Output source current Iref(sink) Output sink current TEST CONDITIONS VDD > 4.75V MIN TYP MAX UNIT 1.003 1.024 1.045 V 2.027 2.048 2.
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TLV5637 www.ti.com SLAS224C – JUNE 1999 – REVISED JUNE 2007 ELECTRICAL CHARACTAERISTICS (CONTINUED) over recommended operating conditions (unless otherwise noted) ANALOG OUTPUT DYNAMIC PERFORMANCE PARAMETER TEST CONDITIONS MIN ts(FS) Output settling time, full scale RL = 10kΩ, CL = 100pF, See (1) ts(CC) Output settling time, code to code RL = 10kΩ, CL = 100pF, See (2) SR Slew rate RL = 10kΩ, CL = 100pF, See (3) Glitch energy DIN = 0 to 1, fCLK = 100kHz, CS = VDD TYP MAX Fast 0.8 2.
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TLV5637 www.ti.com SLAS224C – JUNE 1999 – REVISED JUNE 2007 TYPICAL CHARACTERISTICS SUPPLY CURRENT vs FREE-AIR TEMPERATURE SUPPLY CURRENT vs FREE-AIR TEMPERATURE 4.5 4.5 4 I DD – Supply Current – mA I DD – Supply Current – mA 4 Fast Mode 3.5 3 2.5 2 Slow Mode 1.5 Fast Mode 3.5 3 2.5 2 Slow Mode 1.5 VDD = 5 V Vref = Int. 2 V Input Code = 1023 (Both DACs) 1 VDD = 3 V Vref = Int. 1 V Input Code = 1023 (Both DACs) 1 0.
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TLV5637 www.ti.com SLAS224C – JUNE 1999 – REVISED JUNE 2007 TYPICAL CHARACTERISTICS (continued) OUTPUT VOLTAGE vs LOAD CURRENT OUTPUT VOLTAGE vs LOAD CURRENT 3 4.128 VDD = 5 V Vref = Int. 2 V Input Code = 4095 Fast Mode 2.5 VO – Output Voltage – V VO – Output Voltage – V 4.126 VDD = 3 V Vref = Int. 1 V Input Code = 0 4.124 Slow Mode 4.122 4.12 4.118 Fast Mode 2 1.5 1 0.5 4.116 Slow Mode 0 4.114 0 0.5 1 1.5 2 2.5 3 3.
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TLV5637 www.ti.com SLAS224C – JUNE 1999 – REVISED JUNE 2007 TYPICAL CHARACTERISTICS (continued) TOTAL HARMONIC DISTORTION vs FREQUENCY 0 VDD = 5 V Vref = 1 V dc + 1 V p/p Sinewave Output Full Scale THD – Total Harmonic Distortion – dB –10 –20 –30 –40 –50 –60 –70 Slow Mode –80 Fast Mode –90 –100 100 1000 10000 100000 f – Frequency – Hz INL – Integral Nonlinearity Error – LSB Figure 10. INTEGRAL NONLINEARITY ERROR 1 0.8 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 –0.
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TLV5637 www.ti.com SLAS224C – JUNE 1999 – REVISED JUNE 2007 APPLICATION INFORMATION GENERAL FUNCTION The TLV5637 is a dual 10-bit, single supply DAC, based on a resistor string architecture. It consists of a serial interface, a speed and power-down control logic, a programmable internal reference, a resistor string, and a rail-to-rail output buffer.
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TLV5637 www.ti.com SLAS224C – JUNE 1999 – REVISED JUNE 2007 APPLICATION INFORMATION (continued) DATA FORMAT The 16-bit data word for the TLV5637 consists of two parts: • Program bits (D15..D12) • New data (D11..
PAGE 12
TLV5637 www.ti.com SLAS224C – JUNE 1999 – REVISED JUNE 2007 APPLICATION INFORMATION REFERENCE BITS REF1 REF0 REFERENCE 0 0 External 0 1 1.024V 1 0 2.048V 1 1 External CAUTION: If external refeence voltage is applied to the REF pin, external reference MUST be selected. EXAMPLES OF OPERATION: 1. Set DAC A output, select fast mode, select internal reference at 2.048V: a. Set reference voltage to 2.
PAGE 13
TLV5637 www.ti.com SLAS224C – JUNE 1999 – REVISED JUNE 2007 LINEARITY, OFFSET, AND GAIN ERROR USING SINGLE ENDED SUPPLIES When an amplifier is operated from a single supply, the voltage offset can still be either positive or negative. With a positive offset, the output voltage changes on the first code change. With a negative offset, the output voltage may not change with the first code, depending on the magnitude of the offset voltage.
PAGE 14
TLV5637 www.ti.com SLAS224C – JUNE 1999 – REVISED JUNE 2007 DEFINITIONS OF SPECIFICATIONS AND TERMINOLOGY Integral Nonlinearity (INL) The relative accuracy or integral nonlinearity (INL), sometimes referred to as linearity error, is the maximum deviation of the output from the line between zero and full scale excluding the effects of zero code and full-scale errors.
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TLV5637 www.ti.com SLAS224C – JUNE 1999 – REVISED JUNE 2007 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from B Revision (January 2004) to C Revision .............................................................................................. Page • Changed —moved package option table from front page. ...................................................................................................
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 11-Apr-2013 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 warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties.
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PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device TLV5637IDR Package Package Pins Type Drawing SOIC D 8 SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 2500 330.0 12.4 Pack Materials-Page 1 6.4 B0 (mm) K0 (mm) P1 (mm) 5.2 2.1 8.0 W Pin1 (mm) Quadrant 12.
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PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TLV5637IDR SOIC D 8 2500 367.0 367.0 35.
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