DAC7631EB1K BURR-BROWN [Burr-Brown Corporation], DAC7631EB1K Datasheet

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DAC7631EB1K

Manufacturer Part Number
DAC7631EB1K
Description
Serial Input, 16-Bit, Voltage Output DIGITAL-TO-ANALOG CONVERTER
Manufacturer
BURR-BROWN [Burr-Brown Corporation]
Datasheet
SBAS122
CLK
SDI
For most current data sheet and other product
© 1999 Burr-Brown Corporation
FEATURES
DESCRIPTION
The DAC7631 is a serial input, 16-bit, voltage out-
put Digital-to-Analog Converter (D/A) with guaran-
teed 15-bit monotonic performance over the –40 C to
+85 C temperature range. An asynchronous reset clears
all registers to either mid-scale (8000
(0000
vice can be powered from a single +5V supply or from
dual +5V and –5V supplies.
CS
LOW POWER: 2.5mW
UNIPOLAR OR BIPOLAR OPERATION
15-BIT LINEARITY AND MONOTONICITY:
SMALL SSOP-20 PACKAGE
information, visit www.burr-brown.com
SETTLING TIME: 10 s to 0.003%
–40 C to +85 C
USER SELECTABLE RESET TO
MID-SCALE OR ZERO-SCALE
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111
DAC7631
H
Twx: 910-952-1111 • Internet: http://www.burr-brown.com/ • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
), selectable via the RESETSEL pin. The de-
Register
Shift
SDO
DIGITAL-TO-ANALOG CONVERTER
Serial Input, 16-Bit, Voltage Output
®
V
DD
Register
LOAD
Input
V
CC
H
) or zero-scale
RSTSEL
V
SS
Register
DAC
RST
PDS-1536A
1
APPLICATIONS
Low power and small size makes the DAC7631 ideal
for process control, data acquisition systems, and
closed-loop servo-control. The device is available in a
SSOP-20 package, and is guaranteed over the
–40 C to +85 C temperature range.
LDAC
ATE PIN ELECTRONICS
PROCESS CONTROL
CLOSED-LOOP SERVO-CONTROL
MOTOR CONTROL
DATA ACQUISITION SYSTEMS
V
Sense
REF
L
DAC A
V
REF
L
DGND
V
REF
DAC7631
Printed in U.S.A. August, 2000
DAC7631
H
V
Sense
REF
H
V
V
AGND
OUT
OUT
Sense
®

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DAC7631EB1K Summary of contents

Page 1

For most current data sheet and other product information, visit www.burr-brown.com Serial Input, 16-Bit, Voltage Output DIGITAL-TO-ANALOG CONVERTER FEATURES LOW POWER: 2.5mW UNIPOLAR OR BIPOLAR OPERATION SETTLING TIME 0.003% 15-BIT LINEARITY AND MONOTONICITY: – +85 ...

Page 2

SPECIFICATIONS (Dual Supply +5V –5V MIN MAX PARAMETER ACCURACY Linearity Error Differential Linearity Error Monotonicity MIN MAX Bipolar Zero ...

Page 3

SPECIFICATIONS (Single Supply +5V 0V MIN MAX PARAMETER ACCURACY (1) Linearity Error Differential Linearity Error Monotonicity MIN MAX Zero ...

Page 4

ABSOLUTE MAXIMUM RATINGS ........................................................................... –0.3V to +11V GND ........................................................................ –0.3V to +5. ............................................................... –0. REFL .............................................................. –0. REFH V to ...

Page 5

PIN CONFIGURATION Top View REF V H Sense 2 REF REF V L Sense 4 REF DGND 5 DAC7631 SDO 7 SDI 8 CLK PIN DESCRIPTIONS PIN LABEL ...

Page 6

TYPICAL PERFORMANCE CURVES + +5V 0V REFH LINEARITY ERROR AND DIFFERENTIAL LINEARITY ERROR vs CODE (+25 C) 2.0 1.5 1.0 0.5 0 –0.5 –1.0 ...

Page 7

TYPICAL PERFORMANCE CURVES + +5V 0V REFH V CURRENT vs CODE REFL 0 –0.02 –0.04 –0.06 –0.08 –0.10 –0.12 –0.14 0000 2000 4000 6000 ...

Page 8

TYPICAL PERFORMANCE CURVES + +5V 0V REFH OUTPUT VOLTAGE vs MIDSCALE GLITCH PERFORMANCE 8000 to 7FFF H Time (1 s/div) OUTPUT NOISE VOLTAGE vs ...

Page 9

TYPICAL PERFORMANCE CURVES + +5V –5V REFH LINEARITY ERROR AND DIFFERENTIAL LINEARITY ERROR vs CODE (+25 C) 1.0 0.5 0 –0.5 –1.0 –1.5 –2.0 ...

Page 10

TYPICAL PERFORMANCE CURVES + +5V –5V REFH POSITIVE FULL-SCALE ERROR vs TEMPERATURE (Code FFFF ) H 2.0 1.5 1.0 0.5 0 –0.5 –1.0 –1.5 ...

Page 11

TYPICAL PERFORMANCE CURVES + +5V –5V REFH THEORY OF OPERATION The DAC7631 is a 16-bit voltage-output Digital-to-Analog Converter (DAC). The architecture is an R-2R ...

Page 12

Serial Data Out Serial Data In Clock Chip Select FIGURE 2. Basic Single-Supply Operation. +5V +2.5000V –2.5000V + 0 Serial Data Out Serial Data In Clock Chip Select FIGURE 3. Basic Dual-Supply Operation. ANALOG OUTPUTS When ...

Page 13

The current into the V H input and out of V REF on the DAC output voltage, and can vary from a few microamps to approximately 0.3mA in dual supply or 0.15mA in single-supply operation. The reference input appears as ...

Page 14

NOTE: V drops across the 100 resistor and the output stage of the buffer op amp. FIGURE 6. Single-supply Buffered Reference, V LINEARITY ERROR AND DIFFERENTIAL LINEARITY ERROR vs CODE (DAC A, +25 C) 2.0 ...

Page 15

OPA2350 +2.5V FIGURE 10. Single-supply Buffered V LINEARITY ERROR AND DIFFERENTIAL LINEARITY ERROR vs CODE (DAC A, +25 C) 2.5 2.0 1.5 1.0 0.5 0 –0.5 –1.0 –1.5 2.0 1.5 1.0 0.5 0 –0.5 –1.0 –1.5 –2.0 0000 ...

Page 16

DAC7631 SCK CLK DIN SDI CS CS FIGURE 14. Daisy-chaining DAC7631. DAC updates; i.e., the LDAC pin can be driven with a separate signal, such as a timing clock, which need not be directly related to the serial data timing. ...

Page 17

SDI D15 D14 D13 CLK t css CS t LD1 LOAD SDI t SDO CLK SDO t t LDDL LDDH LDAC V OUT RESET RESETSEL FIGURE 15. Digital Input and Output Timing. SYMBOL DESCRIPTION t Data Valid to CLK ...

Page 18

Figure 16 shows a DAC7631 in a 4mA to 20mA current output configuration. The output current can be determined by Equation – • OUT 125 65 536 , 1000pF ...

Page 19

PACKAGING INFORMATION (1) Orderable Device Status DAC7631E ACTIVE DAC7631E/1K ACTIVE DAC7631EB ACTIVE DAC7631EB/1K ACTIVE (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be ...

Page 20

Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the ...

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