Burr Brown Corporation DAC85H-CBI-V, DAC85H-CBI-I, DAC87H-CBI-V, DAC80Z-CBI-V, DAC80P-CBI-V-BI Datasheet

			®			DAC80
						DAC80P

Monolithic 12-Bit

DIGITAL-TO-ANALOG CONVERTERS

FEATURES

●INDUSTRY STANDARD PINOUT

●FULL ±10V SWING WITH VCC = ±12VDC

●DIGITAL INPUTS ARE TTLAND CMOS-COMPATIBLE

●GUARANTEED SPECIFICATIONS WITH

±12V AND ±15V SUPPLIES

●±1/2LSB MAXIMUM NONLINEARITY: 0°C to +70°C

●SETTLING TIME: 4μs max to ±0.01% of

Full Scale

●GUARANTEED MONOTONICITY: 0°C to +70°C

●TWO PACKAGE OPTIONS: Hermetic sidebrazed ceramic and low-cost molded plastic

resistors, as well as low integral and differential lin-

earity errors. Innovative circuit design enables the DAC80 to operate at supply voltages as low as ±11.4V

with no loss in performance or accuracy over any range of output voltage. The lower power dissipation of this 118-mil by 121-mil chip results in higher reliability and greater long term stability.

Burr-Brown has further enhanced the reliability of the monolithic DAC80 by offering a hermetic, side-brazed, ceramic package. In addition, ease of use has been enhanced by eliminating the need for a +5V logic power supply.

For applications requiring both reliability and low cost, the DAC80P in a molded plastic package offers the same electrical performance over temperature as the ceramic model. The DAC80P is available with voltage output only.

For designs that require a wider temperature range, see Burr-Brown models DAC85H and DAC87H.

DESCRIPTION

This monolithic digital-to-analog converter is pin-for- pin equivalent to the industry standard DAC80 first introduced by Burr-Brown. Its single-chip design includes the output amplifier and provides a highly stable reference capable of supplying up to 2.5mA to an external load without degradation of D/A performance.

This converter uses proven circuit techniques to provide accurate and reliable performance over temperature and power supply variations. The use of a buried zener diode as the basis for the internal reference contributes to the high stability and low noise of the device. Advanced methods of laser trimming result in precision output current and output amplifier feedback

				Reference
	Inputs	12-Bit	Reference	Gain
		Resistor	Control
				Adjustment
		Ladder	Circuit
	Digital	Network		Scaling
		and
				Network
		Current
		Switches
				Analog
				Output
				Offset
				Adjustment
				+ Supply
				– Supply

International Airport Industrial Park • Mailing Address: PO Box 11400	• Tucson, AZ 85734	• Street Address: 6730 S. Tucson Blvd. • Tucson, AZ 85706
Tel: [phone] • Twx: 910-952-1111 • Cable: BBRCORP •	Telex: 066-6491 •	FAX: [phone] • Immediate Product Info: [phone]
© 1986 Burr-Brown Corporation	PDS-643F	Printed in U.S.A. July, 1993

SPECIFICATIONS

ELECTRICAL

Typical at +25°C and ±VCC = 12V or 15V unless otherwise noted.

				DAC80
PARAMETER	MIN			TYP		MAX	UNITS
DIGITAL INPUT
Resolution						12	Bits
Logic Levels (0°C to +70°C)(1):
VIH (Logic “1”)	+2					+16.5	VDC
VIL (Logic “0”)	0					+0.8	VDC
IIH (VIN = +2.4V)						+20	μA
IIL (VIN = +0.4V)						–180	μA
ACCURACY (at +25°C)				±1/4		±1/2
Linearity Error							LSB
Differential Linearity Error				±1/2		±3/4	LSB
Gain Error(2)				±0.1		±0.3	%
Offset Error(2)				±0.05		±0.15	% of FSR(3)
DRIFT (0°C to +70°C)(4)				±10		±25	ppm of FSR/°C
Total Bipolar Drift (includes gain, offset, and linearity drifts)
Total Error Over 0°C to +70°C(5)				±0.06		±0.15
Unipolar							% of FSR
Bipolar				±0.06		±0.12	% of FSR
Gain: Including Internal Reference				±10		±30	ppm/°C
Excluding Internal Reference				±5		±10	ppm/°C
Unipolar Offset				±1		±3	ppm of FSR/°C
Bipolar Offset				±7		±15	ppm of FSR/°C
Differential Linearity 0°C to +70°C				±1/2		±3/4	LSB
Linearity Error 0°C to +70°C				±1/4		±1/2	LSB
Monotonicity Guaranteed	0					+70	°C
CONVERSION SPEED, VOUT Models
Settling Time to ±0.01% of FSR
For FSR Change (2kΩ || 500pF Load)							μs
with 10kΩ Feedback				3		4
with 5kΩ Feedback				2		3	μs
For 1LSB Change				1			μs
Slew Rate	10						V/μs
CONVERSION SPEED, IOUT Models
Settling Time to ±0.01% of FSR
For FSR change: 10Ω to 100Ω Load				300			ns
1kΩ Load				1			μs
ANALOG OUTPUT, VOUT Models
		±	2.5, ±5, ±10, +5, +10
Ranges	±5						V
Output Current(6)							mA
Output Impedance (DC)				0.05			Ω
Short Circuit to Common, Duration(7)				Indefinite
ANALOG OUTPUT, IOUT Models	±0.96			±1.0		±1.04
Ranges: Bipolar							mA
Unipolar	–1.96			–2.0		–2.04	mA
Output Impendance: Bipolar	2.6			3.2		3.7	kΩ
Unipolar	4.6			6.6		8.6	kΩ
Compliance	–2.5					+2.5	V
REFERENCE VOLTAGE OUTPUT	+6.23			+6.30		+6.37	V
External Current (constant load)				±10		2.5	mA
Drift vs Temperature						±20	ppm/°C
Output Impedance				1			Ω
POWER SUPPLY SENSITIVITY
VCC = ±12VDC or ±15VDC				±0.002		±0.006	% FSR/ % VCC
POWER SUPPLY REQUIREMENTS
±VCC	±11.4					±16.5	VDC
Supply Drain (no load): +VCC				8		12	mA
–VCC				15		20	mA
Power Dissipation (VCC = ±15VDC)				345		480	mW
TEMPERATURE RANGE							°C
Specification	0					+70
Operating	–25					+85	°C
Storage: Plastic DIP	–60					+100	°C
Ceramic DIP	–65					+150	°C

NOTES: (1) Refer to “Logic Input Compatibility” section. (2) Adjustable to zero with external trim potentiometer. (3) FSR means full scale range and is 20V for ±10V range, 10V for ±5V range for VOUT models; 2mA for IOUT models. (4) To maintain drift spec, internal feedback resistors must be used. (5) Includes the effects of gain, offset and linearity drift. Gain and offset errors externally adjusted to zero at +25°C. (6) For ±VCC less than ±12VDC, limit output current load to ±2.5mA to maintain ±10V full scale output voltage swing. For output range of ±5V or less, the output current is ±5mA over entire ±VCC range. (7) Short circuit current is 40mA, max.

®

	DAC80/80P	2

FUNCTIONAL DIAGRAM AND PIN ASSIGNMENTS

Voltage Models

Current Models

(MSB) Bit 1

1

Reference

24

6.3V Ref Out

(MSB) Bit 1

1

Reference

24

6.3V Ref Out

Bit 2

2

Control

23

Gain Adjust

Bit 2

2

Control

23

Gain Adjust

Bit 3

3

Circuit

22

+VCC

Bit 3

3

Circuit

22

+VCC

Bit 4

4

21

Common

Bit 4

4

21

Common

Bit 5

5

12-Bit

5kΩ

20

Summing Junction

Bit 5

5

12-Bit

2kΩ 20

Scaling Network

Resistor

Resistor

Bit 6

6

Ladder

19

20V Range

Bit 6

6

Ladder

3kΩ

19

Scaling Network

Network

5kΩ

Network

Bit 7

7

and

6.3kΩ

18

10V Range

Bit 7

7

and

5kΩ

18

Scaling Network

Current

Current

Bit 8

8

17

Bipolar Offset

Bit 8

8

17

Bipolar Offset

Switches

Switches

6.3kΩ

Bit 9

9

16

Ref Input

Bit 9

9

16

Ref Input

Bit 10

10

15

VOUT

Bit 10

10

15

IOUT

Bit 11

11

14

–VCC

Bit 11

11

14

–VCC

(LSB) Bit 12

12

13

NC(1)

(LSB) Bit 12

12

13

NC(1)

NOTE: (1) Logic supply applied to this pin has no effect.

ABSOLUTE MAXIMUM RATINGS

+VCC to Common ......................................................................	0V to +18V
–VCC to Common .........................................................................	0V to –18
Digital Data Inputs to Common ..............................................	–1V to +18V
Reference Output to Common ............................................................	±VCC
Reference Input to Common ...............................................................	±VCC
Bipolar Offset to Common ...................................................................	±VCC
10V Range R to Common ...................................................................	±VCC
20V Range R to Common ...................................................................	±VCC
External Voltage to DAC Output ..............................................	–5V to +5V
Lead Temperature (soldering, 10s) ................................................	+300°C
Max Junction Temperature ..............................................................	165°C
Thermal Resistance, θJA: Plastic DIP ...........................................	100°C/W
Ceramic DIP .........................................	65°C/W

Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. Exposure to absolute maximum conditions for extended periods may affect device reliability.

ORDERING INFORMATION

MODEL	PACKAGE	OUTPUT
DAC80-CBI-I	Ceramic DIP	Current
DAC80Z-CBI-I	Ceramic DIP	Current
DAC80-CBI-V	Ceramic DIP	Voltage
DAC80Z-CBI-V	Ceramic DIP	Voltage
DAC80P-CBI-V	Plastic DIP	Voltage
BURN-IN SCREENING OPTION
		BURN-IN TEMP.
MODEL	PACKAGE	(160h)(1)
DAC80-CBI-V-BI	Ceramic DIP	+125°C
DAC80P-CBI-V-BI	Plastic DIP	+125°C

NOTE: (1) Or equivalent combination. See text.

PACKAGE INFORMATION

		PACKAGE DRAWING
MODEL	PACKAGE	NUMBER(1)
DAC80P	24-Pin Plastic DIP	167
DAC80	24-Pin Ceramic DIP	125

NOTE: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix D of Burr-Brown IC Data Book.

BURN-IN SCREENING

Burn-in screening is an option available for the models indicated in the Ordering Information table. Burn-in duration is 160 hours at the maximum specified grade operating temperature (or equivalent combination of time and temperature).

All units are tested after burn-in to ensure that grade specifications are met. To order burn-in, add “–BI” to the base model number.

®

3	DAC80/80P