Datasheet

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FEATURES

APPLICATIONS

DIN

SCLK

OUTA

OUTB

REF

AGND

D, JG PACKAGE

(TOP VIEW)

192013 2

1312119 10

OUTB

REF

SCLK

DIN

OUTA

AGND

FK PACKAGE

(TOP VIEW)

DESCRIPTION

TLV5638

SLAS225C – JUNE 1999 – REVISED JANUARY 2004

2.7-V TO 5.5-V LOW-POWER DUAL 12-BIT DIGITAL-TO-ANALOG CONVERTER WITH

INTERNAL REFERENCE AND POWER DOWN

• Dual 12-Bit Voltage Output DAC

• Programmable Internal Reference

• Programmable Settling Time:

– 1 µs in Fast Mode,

– 3.5 µs in Slow Mode

• Compatible With TMS320 and SPI™ Serial

Ports

• Differential Nonlinearity <0.5 LSB Typ

• Monotonic Over Temperature

• Digital Servo Control Loops

• Digital Offset and Gain Adjustment

• Industrial Process Control

• Machine and Motion Control Devices

• Mass Storage Devices

The TLV5638 is a dual 12-bit voltage output DAC with a flexible 3-wire serial interface. The serial interface allows

glueless interface to TMS320, SPI™, QSPI™, and Microwire™ serial ports. It is programmed with a 16-bit serial

string containing 4 control and 12 data bits.

The resistor string output voltage is buffered by a x2 gain rail-to-rail output buffer. The buffer features a Class AB

output stage to improve stability and reduce settling time. The programmable settling time of the DAC allows the

designer to optimize speed vs power dissipation. With its on-chip programmable precision voltage reference, the

TLV5638 simplifies overall system design.

Because of its ability to source up to 1 mA, the reference can also be used as a system reference. Implemented

with a CMOS process, the device is designed for single supply operation from 2.7 V to 5.5 V. It is available in an

8-pin SOIC package to reduce board space in standard commercial, industrial, and automotive temperature

ranges. It is also available in JG and FK packages in the military temperature range.

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.

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 (24 pages)

PAGE 1
TLV5638 www.ti.com SLAS225C – JUNE 1999 – REVISED JANUARY 2004 2.7-V TO 5.
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TLV5638 www.ti.com SLAS225C – JUNE 1999 – REVISED JANUARY 2004 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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TLV5638 www.ti.com SLAS225C – JUNE 1999 – REVISED JANUARY 2004 Terminal Functions TERMINAL I/O/P DESCRIPTION NAME NO. AGND 5 P Ground CS 3 I Chip select.
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TLV5638 www.ti.com SLAS225C – JUNE 1999 – REVISED JANUARY 2004 RECOMMENDED OPERATING CONDITIONS Supply voltage, VDD MIN NOM MAX VDD = 5 V 4.5 5 5.5 V VDD = 3 V 2.7 3 3.3 V 2 (1) V 0.55 (1) Power on reset, POR High-level digital input voltage, VIH VDD = 2.7 V 2 VDD = 5.5 V 2.4 V VDD = 2.7 V Low-level digital input voltage, VIL VDD = 5.5 V UNIT 0.6 TLV5638C and TLV5638I 1 TLV5638Q and TLV5638M 0.8 V V Reference voltage, Vref to REF terminal VDD = 5 V (2) AGND 2.048 VDD-1.
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TLV5638 www.ti.com SLAS225C – JUNE 1999 – REVISED JANUARY 2004 ELECTRICAL CHARACTERISTICS (Continued) over recommended operating conditions, Vref = 2.048 V, Vref= 1.
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TLV5638 www.ti.com SLAS225C – JUNE 1999 – REVISED JANUARY 2004 ELECTRICAL CHARACTERISTICS (Continued) over recommended operating conditions, Vref = 2.048 V, Vref= 1.
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TLV5638 www.ti.com SLAS225C – JUNE 1999 – REVISED JANUARY 2004 TYPICAL CHARACTERISTICS SUPPLY CURRENT vs FREE-AIR TEMPERATURE POWER DOWN SUPPLY CURRENT vs TIME 4.5 2.4 4 2.2 I DD – Supply Current – mA I DD – Power Down Supply Current – mA 2.6 2 1.8 1.6 1.4 1.2 1 0.8 Fast Mode 3.5 3 2.5 2 Slow Mode 1.5 0.6 0.4 VDD = 5 V Vref = Int. 2 V Input Code = Full Scale (Both DACs) 1 0.2 0 0 10 20 30 40 50 t – Time – µs 60 70 0.
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TLV5638 www.ti.com SLAS225C – JUNE 1999 – REVISED JANUARY 2004 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 3.5 0 4 Source Current – mA 0.5 1 1.5 Figure 6.
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TLV5638 www.ti.com SLAS225C – JUNE 1999 – REVISED JANUARY 2004 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.
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TLV5638 www.ti.com SLAS225C – JUNE 1999 – REVISED JANUARY 2004 APPLICATION INFORMATION GENERAL FUNCTION The TLV5638 is a dual 12-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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TLV5638 www.ti.com SLAS225C – JUNE 1999 – REVISED JANUARY 2004 APPLICATION INFORMATION (continued) DATA FORMAT The 16-bit data word for the TLV5638 consists of two parts: • Program bits (D15..D12) • New data (D11..
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TLV5638 www.ti.com SLAS225C – JUNE 1999 – REVISED JANUARY 2004 EXAMPLES OF OPERATION: 1. Set DAC A output, select fast mode, select internal reference at 2.048 V: a. Set reference voltage to 2.048 V (CONTROL register) D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 1 1 0 1 0 0 0 0 0 0 0 0 0 0 1 0 D7 D6 D5 D4 D3 D2 D1 D0 b.
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TLV5638 www.ti.com SLAS225C – JUNE 1999 – REVISED JANUARY 2004 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.
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TLV5638 www.ti.com SLAS225C – JUNE 1999 – REVISED JANUARY 2004 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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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com Orderable Device 25-Sep-2013 Status (1) TLV5638QDRG4 ACTIVE Package Type Package Pins Package Drawing Qty SOIC D 8 2500 Eco Plan Lead/Ball Finish (2) Green (RoHS & no Sb/Br) MSL Peak Temp Op Temp (°C) Device Marking (3) CU NIPDAU Level-1-260C-UNLIM (4/5) V5638 (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant TLV5638CDR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 TLV5638IDR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 TLV5638QDR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 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) TLV5638CDR SOIC D 8 2500 367.0 367.0 35.0 TLV5638IDR SOIC D 8 2500 367.0 367.0 35.0 TLV5638QDR SOIC D 8 2500 367.0 367.0 35.
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MECHANICAL DATA MCER001A – JANUARY 1995 – REVISED JANUARY 1997 JG (R-GDIP-T8) CERAMIC DUAL-IN-LINE 0.400 (10,16) 0.355 (9,00) 8 5 0.280 (7,11) 0.245 (6,22) 1 0.063 (1,60) 0.015 (0,38) 4 0.065 (1,65) 0.045 (1,14) 0.310 (7,87) 0.290 (7,37) 0.020 (0,51) MIN 0.200 (5,08) MAX Seating Plane 0.130 (3,30) MIN 0.023 (0,58) 0.015 (0,38) 0°–15° 0.100 (2,54) 0.014 (0,36) 0.008 (0,20) 4040107/C 08/96 NOTES: A. B. C. D. E. All linear dimensions are in inches (millimeters).
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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.