5962-8780201RA Analog Devices Inc, 5962-8780201RA Datasheet

no-image

5962-8780201RA

Manufacturer Part Number
5962-8780201RA
Description
Manufacturer
Analog Devices Inc
Datasheet

Specifications of 5962-8780201RA

Number Of Channels
4
Resolution
8b
Conversion Rate
143KSPS
Interface Type
Parallel
Single Supply Voltage (typ)
15V
Dual Supply Voltage (typ)
-5/12/-5/15V
Settling Time
20us
Architecture
R-2R
Power Supply Requirement
Single/Dual
Output Type
Voltage
Integral Nonlinearity Error
±1LSB
Single Supply Voltage (min)
14.25V
Single Supply Voltage (max)
15.75V
Dual Supply Voltage (min)
-4.5/11.4V
Dual Supply Voltage (max)
-5.5/16.5V
Operating Temp Range
-55C to 125C
Operating Temperature Classification
Military
Mounting
Through Hole
Pin Count
20
Package Type
CDIP
Lead Free Status / Rohs Status
Not Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
5962-8780201RA
Quantity:
316
a
REV. A
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
GENERAL DESCRIPTION
The AD7226 contains four 8-bit voltage-output digital-to-
analog converters, with output buffer amplifiers and interface
logic on a single monolithic chip. No external trims are required
to achieve full specified performance for the part.
Separate on-chip latches are provided for each of the four D/A
converters. Data is transferred into one of these data latches
through a common 8-bit TTL/CMOS (5 V) compatible input
port. Control inputs A0 and A1 determine which DAC is loaded
when WR goes low. The control logic is speed-compatible with
most 8-bit microprocessors.
Each D/A converter includes an output buffer amplifier capable
of driving up to 5 mA of output current. The amplifiers’ offsets
are laser-trimmed during manufacture, thereby eliminating any
requirement for offset nulling.
Specified performance is guaranteed for input reference voltages
from +2 V to +12.5 V with dual supplies. The part is also speci-
fied for single supply operation at a reference of +10 V.
The AD7226 is fabricated in an all ion-implanted high speed
Linear Compatible CMOS (LC
specifically developed to allow high speed digital logic circuits
and precision analog circuits to be integrated on the same chip.
FEATURES
Four 8-Bit DACs with Output Amplifiers
Skinny 20-Pin DIP, SOIC and 20-Terminal
Microprocessor Compatible
TTL/CMOS Compatible
No User Trims
Extended Temperature Range Operation
Single Supply Operation Possible
APPLICATIONS
Process Control
Automatic Test Equipment
Automatic Calibration of Large System Parameters,
Surface Mount Packages
e.g., Gain/Offset
2
MOS) process which has been
PRODUCT HIGHLIGHTS
1. DAC-to-DAC Matching
2. Single Supply Operation
3. Microprocessor Compatibility
4. Small Size
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
Since all four DACs are fabricated on the same chip at the
same time, precise matching and tracking between the DACs
is inherent.
The voltage mode configuration of the DACs allows the
AD7226 to be operated from a single power supply rail.
The AD7226 has a common 8-bit data bus with individual
DAC latches, providing a versatile control architecture for
simple interface to microprocessors. All latch enable signals
are level triggered.
Combining four DACs and four op amps plus interface logic
into a 20-pin DIP or SOIC or a 20-terminal surface mount
package allows a dramatic reduction in board space require-
ments and offers increased reliability in systems using mul-
tiple converters. Its pinout is aimed at optimizing board
layout with all the analog inputs and outputs at one end of the
package and all the digital inputs at the other.
Quad 8-Bit D/A Converter
FUNCTIONAL BLOCK DIAGRAM
AD7226
Fax: 617/326-8703
LC
2
MOS

Related parts for 5962-8780201RA

5962-8780201RA Summary of contents

Page 1

FEATURES Four 8-Bit DACs with Output Amplifiers Skinny 20-Pin DIP, SOIC and 20-Terminal Surface Mount Packages Microprocessor Compatible TTL/CMOS Compatible No User Trims Extended Temperature Range Operation Single Supply Operation Possible APPLICATIONS Process Control Automatic Test Equipment Automatic Calibration ...

Page 2

AD7226–SPECIFICATIONS ( DUAL SUPPLY All specifications T Parameter STATIC PERFORMANCE Resolution Total Unadjusted Error Relative Accuracy Differential Nonlinearity Full Scale Error Full Scale Temperature Coefficient Zero Code Error Zero Code Error Temperature ...

Page 3

... To order MIL-STD-883, Class B processed parts, add /883B to part number. Contact your local sales office for Military data sheet, for U.S. Standard Military Drawing (SMD), see DESC drawing #5962–87802 Leadless Ceramic Chip Carrier Plastic DIP Plastic Leaded Chip Carrier Cerdip SOIC. ...

Page 4

AD7226 ABSOLUTE MAXIMUM RATINGS AGND . . . . . . . . . . . . . . . . . . . . . . . . . . –0 ...

Page 5

CIRCUIT INFORMATION D/A SECTION The AD7226 contains four, identical, 8-bit, voltage mode digital-to-analog converters. The output voltages from the con- verters have the same polarity as the reference voltage allowing single supply operation. A novel DAC switch pair arrangement on ...

Page 6

AD7226 INTERFACE LOGIC INFORMATION Address lines A0 and A1 select which DAC will accept data from the input port. Table I shows the selection table for the four DACs with Figure 4 showing the input control logic. When the WR ...

Page 7

Figure 9. Zero Code Error vs. Temperature SPECIFICATION RANGES In order for the DACs to operate to their specifications, the ref- erence voltage must be at least 4 V below the V voltage. This voltage differential is required for correct ...

Page 8

AD7226 Unipolar Output Operation This is the basic mode of operation for each channel of the AD7226, with the output voltage having the same positive polarity The AD7226 can be operated single supply REF (V = AGND) ...

Page 9

Figure 14. AGND Bias Circuit For a given V , increasing AGND above system GND will re- IN duce the effective V –V which must be at least en- DD REF sure specified operation. Note that because ...

Page 10

AD7226 STAIRCASE WINDOW COMPARATOR In many test systems important to be able to determine whether some parameter lies within defined limits. The staircase window comparator of Figure 18a is a circuit which can be used, for example, to ...

Page 11

OFFSET ADJUST Figure 21 shows how the AD7226 can be used to provide pro- grammable input offset voltage adjustment for the AD544 op amp. Each output of the AD7226 can be used to trim the input offset voltage on one ...

Page 12

AD7226 20-Pin Plastic (N-20) 20-Pin Cerdip (Q-20) 20-Pin SOIC (R-20) OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 20-Terminal Plastic Leaded Chip Carrier (P-20A) 20-Terminal Leadless Ceramic Chip Carrier (E-20A) –12– REV. A ...

Related keywords