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TLC5615C, TLC5615I

10-BIT DIGITAL-TO-ANALOG CONVERTERS

SLAS142B – OCTOBER 1996 – REVISED MARCH 1997

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

10-Bit CMOS Voltage Output DAC in an

8-Terminal Package

5-V Single Supply Operation

3-Wire Serial Interface

High-Impedance Reference Inputs

Voltage Output Range...2 Times the

Reference Input Voltage

Internal Power-On Reset

Low Power Consumption...1.75 mW Max

Update Rate of 1.21 MHz

Settling Time to 0.5 LSB...12.5 µs Typ

Monotonic Over Temperature

Pin Compatible with the Maxim MAX515

applications

Battery-Powered Test Instruments

Digital Offset and Gain Adjustment

Battery Operated/Remote Industrial

Controls

Machine and Motion Control Devices

Cellular Telephones

description

The TLC5615 is a 10-bit voltage output digital-to-analog converter (DAC) with a buffered reference input (high

impedance). The DAC has an output voltage range that is two times the reference voltage, and the DAC is

monotonic. The device is simple to use, running from a single supply of 5 V. A power-on-reset function is

incorporated to ensure repeatable start-up conditions.

Digital control of the TLC5615 is over a three-wire serial bus that is CMOS compatible and easily interfaced to

industry standard microprocessor and microcontroller devices. The device receives a 16-bit data word to

produce the analog output. The digital inputs feature Schmitt triggers for high noise immunity. Digital

communication protocols include the SPI, QSPI, and Microwire standards.

The 8-terminal small-outline D package allows digital control of analog functions in space-critical applications.

The TLC5615C is characterized for operation from 0°C to 70°C. The TLC5615I is characterized for operation

from –40°C to 85°C.

AVAILABLE OPTIONS

PACKAGE

SMALL OUTLINE

†

(D)

PLASTIC DIP

(P)

0°C to 70°C TLC5615CD TLC5615CP

–40°C to 85°C TLC5615ID TLC5615IP

†

Available in tape and reel as the TLC5615CDR and the TLC5615IDR

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.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

DIN

SCLK

DOUT

OUT

REFIN

AGND

D OR P PACKAGE

(TOP VIEW)

SPI and QSPI are trademarks of Motorola, Inc.

Microwire is a trademark of National Semiconductor Corporation.

TLC5615C, TLC5615I

10-BIT DIGITAL-TO-ANALOG CONVERTERS

SLAS142B – OCTOBER 1996 – REVISED MARCH 1997

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

functional block diagram

DAC

10-Bit DAC Register

Power-ON

Reset

Control

Logic

16-Bit Shift Register

Dummy

Bits

10 Data Bits

(LSB) (MSB)

REFIN

AGND

SCLK

DIN

OUT

(Voltage Output)

DOUT

Terminal Functions

TERMINAL

I/O

DESCRIPTION

NAME NO.

I/O

DESCRIPTION

DIN 1 I Serial data input

SCLK 2 I Serial clock input

CS 3 I Chip select, active low

DOUT 4 O Serial data output for daisy chaining

AGND 5 Analog ground

REFIN 6 I Reference input

OUT 7 O DAC analog voltage output

8 Positive power supply

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)

†

Supply voltage (V

to AGND) 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Digital input voltage range to AGND – 0.3 V to V

+ 0.3 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Reference input voltage range to AGND – 0.3 V to V

+ 0.3 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Output voltage at OUT from external source V

+ 0.3 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Continuous current at any terminal ±20 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating free-air temperature range, T

: TLC5615C 0°C to 70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TLC5615I –40°C to 85°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Storage temperature range, T

stg

–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 260°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

†

Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

TLC5615C, TLC5615I

10-BIT DIGITAL-TO-ANALOG CONVERTERS

SLAS142B – OCTOBER 1996 – REVISED MARCH 1997

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

recommended operating conditions

MIN NOM MAX UNIT

Supply voltage, V

4.5 5 5.5 V

High-level digital input voltage, V

2.4 V

Low-level digital input voltage, V

0.8 V

Reference voltage, V

ref

to REFIN terminal 2 2.048 V

–2 V

Load resistance, R

2 kΩ

Operating free-air temperature T

TLC5615C 0 70 °C

pera

ree-a

empera

ure,

TLC5615I –40 85 °C

electrical characteristics over recommended operating free-air temperature range, V

= 5 V ± 5%,

ref

= 2.048 V (unless otherwise noted)

static DAC specifications

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

Resolution 10 bits

Integral nonlinearity, end point adjusted (INL) V

ref

= 2.048 V, See Note 1 ±1 LSB

Differential nonlinearity (DNL) V

ref

= 2.048 V, See Note 2 ±0.1 ± 0.5 LSB

Zero-scale error (offset error at zero scale) V

ref

= 2.048 V, See Note 3 ±3 LSB

Zero-scale-error temperature coefficient V

ref

= 2.048 V, See Note 4 3 ppm/°C

Gain error V

ref

= 2.048 V, See Note 5 ±3 LSB

Gain-error temperature coefficient V

ref

= 2.048 V, See Note 6 1 ppm/°C

PSRR

Power-supply rejection ratio

Zero scale

See Notes 7 and 8

PSRR

ower-supp

y re

on ra

Gain

Analog full scale output R

= 100 kΩ 2V

ref

(1023/1024) V

NOTES: 1. 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 (see text).

2. The differential nonlinearity (DNL), sometimes referred to as differential error, is the difference between the measured and ideal 1

LSB amplitude change of any two adjacent codes. Monotonic means the output voltage changes in the same direction (or remains

constant) as a change in the digital input code.

3. Zero-scale error is the deviation from zero-voltage output when the digital input code is zero (see text).

4. Zero-scale-error temperature coefficient is given by: E

TC = [E

max

) – E

min

)]/V

ref

× 10

/(T

max

– T

min

5. Gain error is the deviation from the ideal output (V

ref

– 1 LSB) with an output load of 10 kΩ excluding the effects of the zero-scale

error.

6. Gain temperature coefficient is given by: E

TC = [E

max

) – E

min

)]/V

ref

× 10

/(T

max

– T

min

7. Zero-scale-error rejection ratio (EZS-RR) is measured by varying the V

from 4.5 V to 5.5 V dc and measuring the proportion of

this signal imposed on the zero-code output voltage.

8. Gain-error rejection ratio (EG-RR) is measured by varying the V

from 4.5 V to 5.5 V dc and measuring the proportion of this signal

imposed on the full-scale output voltage after subtracting the zero-scale change.

voltage output (OUT)

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

Voltage output range R

= 10 kΩ 0 V

–0.4 V

Output load regulation accuracy V

O(OUT)

= 2 V, R

= 2 kΩ 0.5 LSB

OSC

Output short circuit current OUT to V

or AGND 20 mA

OL(low)

Output voltage, low-level I

O(OUT)

≤ 5 mA 0.25 V

OH(high)

Output voltage, high-level I

O(OUT)

≤ –5 mA 4.75 V

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