Burr Brown Corporation DAC56U-1K, DAC56U, DAC56 Datasheet

®

DAC56

1

49%
FPO

Monolithic 16-Bit Resolution

DIGITAL-TO-ANALOG CONVERTER

DAC56

FEATURES

● COMPLETE D/A CONVERTER:

Internal Voltage Reference

±3V Output Operational Amplifier

Pinout Allows I

OUT

(±1.0mA) Option

No external components required

●

0.012% LINEARITY ERROR MAX

● 12-BIT MONOTONICITY GUARANTEED

OVER 0

°C TO +70°C

●

±5V TO ±12V POWER SUPPLY

●

SETTLING TIME: V

OUT

= 1.5µs;

I

OUT

= 350ns

●

SERIAL DATA INPUT: Binary Two’s

Complement

● 16-PIN PLASTIC DIP AND SOIC

DESCRIPTION

The DAC56 is a complete 16-bit monolithic D/A
converter. Completely self-contained with a stable,
low noise, internal zener voltage reference; high-speed
current switches; a resistor ladder network; and a low
noise output operational amplifier all on a single
monolithic chip. The DAC56 operates over a wide
power supply range from ±5V to ±12V.

Differential linearity error (DLE) is guaranteed to
meet specifications without external adjustment. How­ever, provisions for an externally adjustable circuit
controlling the MSB error, the differential linearity
error at bipolar zero, makes the DLE at BPZ essen­tially zero and provides for high system performance.
The I/V amplifier stage includes an output current
limiting circuit to protect both amplifier and load from
excessive current. This assures the user of high system
reliability.

A high-speed interface is capable of clocking in data
at a rate of 10MHz max, and its interface logic con­tains a serial data clock (input), serial data (input) and
latch-enable (input). Serial data is clocked MSB first
into a 16-bit register and then latched into a 16-bit
parallel register.

The DAC56 is packaged in a 16-pin plastic DIP and
16-pin SOIC.

R

F

Output

Reference

16-Bit

I

OUT

DAC

16-Bit Input Latch

16-Bit Serial-to-Parallel Conversion

Clock LE Data

APPLICATIONS

● PROCESS CONTROL

●

ATE PIN ELECTRONICS LEVEL SETTING

● CLOSED-LOOP SERVO-CONTROL

●

AUTO-CALIBRATION CIRCUIT FOR A/D

BOARDS

●

UP-GRADE REPLACEMENT FOR

MULTIPLYING D/A

●

X-Y PLOTTER

●

DSP PROCESSOR BOARDS

PDS-1231A

®

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

Internet: http://www.burr-brown.com/ • FAXLine: [phone] (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: [phone] • Immediate Product Info: [phone]

DAC56

DAC56

®

DAC56

2

SPECIFICATIONS

ELECTRICAL

All specifications at +25°C, and power supply voltage of ±5V, unless otherwise noted.

DAC56
PARAMETER CONDITIONS MIN TYP MAX UNITS
DIGITAL INPUT

Resolution 16 Bits
Digital Input Level:

(1)

V

IH

+2.4 +V

L

V

V

IL

0 +0.8 V

I

IH

• VI = +2.7V +1 µA

I

IL

• VI = +0.4V –50 µA

Input Clock Frequency 10 MHz

ACCURACY

Integral Linearity Error ±0.012 % of FSR

(3)

Differential Linearity Error ±0.024 % of FSR
Gain Error ±1.5 % of FSR
Bipolar Zero Error ±0.5 % of FSR
Monotonicity 0°C to +70°C 12 Bits

TEMPERATURE DRIFT 0°C to +70°C

Gain Drift ±60 ppm of FSR/°C
Bipolar Zero Drift ±20 ppm of FSR/°C
Linearity Drift ±0.012 % of FSR
Differential Linearity Drift ±0.024 % of FSR

POWER SUPPLY SENSITIVITY ±V

S

= ±VL = ±5VDC
Gain ±0.0045 % of FSR/%V
Bipolar Zero ±0.0015 % of FSR/%V

SETTLING TIME to ±0.006% of FSR
Voltage Output

6V Step 1.5 µs
1LSB 1 µs

Current Output

1mA Step 10 to 100Ω Load 350 ns

1kΩ Load

(3)

350 ns

Slew Rate 12 V/µs

ANALOG OUTPUT

Voltage Output Configuration

Bipolar Range ±2.66 ±3.0 ±3.34 V
Output Current ±8mA
Output Impedance 0.1 Ω
Short Circuit Duration Indefinite to Common

Current Output Configuration

Bipolar Range ±1mA
Output Impedance 1.2 kΩ

WARMUP TIME 1 min
POWER SUPPLY REQUIREMENTS

(4)

Supply Voltage

+V

S

and +V

L

+4.75 +5.00 +13.2 V

–V

S

and –V

L

–4.75 –5.00 –13.2 V

Supply Drain (No Load)

+V (+V

S

and +VL = +5V) +10 +17 mA

–V (–V

S

and –VL = –5V) –25 –35 mA

+V (+V

S

and +VL = +12V) +12 mA

–V (–V

S

and –VL = –12V) –27 mA

Power Dissipation

V

S

and VL = ±5V 175 260 mW

V

S

and VL = ±12V 468 mW

TEMPERATURE RANGE

Specification 070°C
Storage –60 100 °C

NOTES: (1) Logic input levels are TTL-/CMOS-compatible. (2) FSR means full-scale range and is equivalent to 6V (±3V) for DAC56 in the V

OUT

mode. (3) Measured

with an active clamp to provide a low impedance for approximately 200ns. (4) All specifications assume +V

S

connected to +VL and –VS connected to –VL. If supplies

are connected separately, –V

L

must not be more negative than –VS to assure proper operation. No similar restriction applies to the value of +VL with respect to +VS.