DAC8806

Manufacturer Part NumberDAC8806
DescriptionThe DAC8806, a multiplying digital-to-analog converter(DAC), is designed to operate from a single 2
ManufacturerTexas Instruments
DAC8806 datasheet
 


Specifications of DAC8806

Resolution(bits)14Dac: Channels1
InterfaceParallelOutput TypeCurrent
Output Range Max.(v Or Ma)2Settling Time(µs)0.5
Reference: TypeExtPower Consumption(typ)(mw)0.025
Dnl(max)(+/-lsb)1Inl(max)(+/-lsb)1
Pin/package28SSOP  
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14-Bit, Parallel Input Multiplying Digital-to-Analog Converter
FEATURES
1
±0.5 LSB DNL
2
±1 LSB INL
14-Bit Monotonic
Low Noise: 10 nV/√Hz
Low Power: I
= 2 A
DD
Analog Power Supply: +2.7 V to +5.5 V
1.66 mA Full-Scale Current,
with V
= 10 V
REF
Settling Time: 0.5 s
4-Quadrant Multiplying Reference
Reference Bandwidth: 8 MHz
Reference Input: ±15 V
Reference Dynamics: –105 dB THD
SSOP-28 Package
Industry-Standard Pin Configuration
DAC8806
D0
D13
Parallel Bus
WR
RST
LDAC
1
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.
All trademarks are the property of their respective owners.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
APPLICATIONS
Automatic Test Equipment
Instrumentation
Digitally Controlled Calibration
Industrial Control PLCs
DESCRIPTION
The
DAC8806,
converter (DAC), is designed to operate from a single
2.7 V to 5.5 V supply.
The applied external reference input voltage V
determines the full-scale output current. An internal
feedback resistor (R
for the full-scale output when combined with an
external, current-to-voltage (I/V) precision amplifier.
A
parallel
communications. The DAC8806 is packaged in a
space-saving
industry-standard pinout.
V
R1
R
REF
DD
COM
R1
R2
Input
DAC
Register
Register
Control
Logic
DAC8806
SBAS385B – APRIL 2006 – REVISED FEBRUARY 2008
a
multiplying
digital-to-analog
) provides temperature tracking
FB
interface
offers
high-speed
SSOP-28
package
and
has
R
R
OFS
FB
R
R
OFS
FB
I
DAC
OUT
AGND
DGND
Copyright © 2006–2008, Texas Instruments Incorporated
REF
an

DAC8806 Summary of contents

  • Page 1

    ... V to 5.5 V supply. The applied external reference input voltage V determines the full-scale output current. An internal feedback resistor (R for the full-scale output when combined with an external, current-to-voltage (I/V) precision amplifier. A parallel communications. The DAC8806 is packaged in a space-saving industry-standard pinout REF DD COM ...

  • Page 2

    ... DB-28 (SSOP) – +85 C DAC8806 (1) Copyright © 2006–2008, Texas Instruments Incorporated Product Folder Link(s): DAC8806 www.ti.com ORDERING TRANSPORT MEDIA, NUMBER QUANTITY DAC8806IDB Tubes, 48 DAC8806IDBR Tape and Reel, 2000 DAC8806 UNIT –0 –0 0 –0 0 –40 to +85 C ± ...

  • Page 3

    ... MAX = 5 V ±10% DD Figure 40 and Table 1) Figure 40 and Table 1) Product Folder Link(s): DAC8806 DAC8806 SBAS385B – APRIL 2006 – REVISED FEBRUARY 2008 = 10 V, and T = full REF A DAC8806 MIN TYP MAX UNITS 14 Bits ±1 LSB ±0.5 ±1 LSB ±4 LSB 1 ± ...

  • Page 4

    ... D13–D2 22 DGND 24 RST Product Folder Link(s): DAC8806 www.ti.com = 10 V, and T = full REF A DAC8806 MIN TYP MAX UNITS 2.7 5 2 MHz 2 nV–s – nV–s –105 dB 10 nV/√ ...

  • Page 5

    ... REF 0.6 0.4 0.2 0 -0.2 -0.4 -0.6 -0.8 -1.0 0 2048 Product Folder Link(s): DAC8806 DAC8806 SBAS385B – APRIL 2006 – REVISED FEBRUARY 2008 vs DIGITAL INPUT CODE 4096 6144 8192 10240 12288 14336 16383 Code Figure 2. vs DIGITAL INPUT CODE 4096 6144 8192 10240 12288 14336 16383 Code Figure 4. ...

  • Page 6

    ... V = 10V REF LDAC Pulse Copyright © 2006–2008, Texas Instruments Incorporated Product Folder Link(s): DAC8806 www.ti.com UNIPOLAR MODE 0x3FFF 0x2000 0x1000 0x0800 0x0400 0x0200 0x0100 0x0080 0x0040 0x0020 0x0010 0x0008 0x0004 0x0002 ...

  • Page 7

    ... Figure 13. Copyright © 2006–2008, Texas Instruments Incorporated = +5V (continued) DD BIPOLAR-ZERO ERROR vs TEMPERATURE 1.5 V REF 1.0 0 0.5 - 1 100 -60 Product Folder Link(s): DAC8806 DAC8806 SBAS385B – APRIL 2006 – REVISED FEBRUARY 2008 = 10V 40 - Temperature ( C) ° Figure 14. Submit Documentation Feedback 100 7 ...

  • Page 8

    ... Copyright © 2006–2008, Texas Instruments Incorporated Product Folder Link(s): DAC8806 www.ti.com vs DIGITAL INPUT CODE 4096 6144 8192 10240 12288 14336 16383 Code Figure 16. vs DIGITAL INPUT CODE 4096 6144 8192 10240 12288 14336 16383 Code Figure 18. ...

  • Page 9

    ... SBAS385B – APRIL 2006 – REVISED FEBRUARY 2008 = +2.7V (continued 10V REF LDAC Pulse BIPOLAR-ZERO ERROR vs TEMPERATURE 1 10V REF 1.0 0 1 100 -60 -40 Product Folder Link(s): DAC8806 DAC8806 DAC GLITCH Code: 1FFFh to 2000h LDAC Pulse Time (0 Figure 22 100 -20 Temperature ( C) ° Figure 24. Submit Documentation Feedback 9 ...

  • Page 10

    ... DIFFERENTIAL NONLINEARITY vs V REF 1 0 0.6 0.4 0.2 0 -0.2 -0.4 -0.6 -0.8 -1 -10 Copyright © 2006–2008, Texas Instruments Incorporated Product Folder Link(s): DAC8806 www.ti.com DAC SETTLING TIME Unipolar Mode Voltage Output Settling Trigger Pulse Time (0.5 s/div) m Figure 26. REF BIPOLAR MODE = (V) REF Figure 28. REF ...

  • Page 11

    ... Filter V = +5V DD Two OPA627s 20pF 105 - 115 - 10k 20k 30k 10 Product Folder Link(s): DAC8806 DAC8806 SBAS385B – APRIL 2006 – REVISED FEBRUARY 2008 INTEGRAL NONLINEARITY vs V BIPOLAR MODE DD = 10V REF = 2.5V REF 2.8 3.3 3.8 4.3 4.8 5.3 5.5 V (V) DD Figure 32. DIFFERENTIAL NONLINEARITY vs V BIPOLAR MODE ...

  • Page 12

    ... Because of this, the external I/V converter op amp must have a sufficiently low offset voltage such that the amplifier offset is not modulated by the DAC I large offset voltages can produce INL errors in the transfer function of the DAC8806 because of offset modulation versus DAC code. For best linearity performance of the DAC8806 amp (OPA277) is recommended ...

  • Page 13

    ... OFS FB +15V U2 I DAC8806 OUT OPA277 GND -15V LWD t LDAC Figure 40. DAC8806 Timing Diagram Table 1. Function of Control Inputs Product Folder Link(s): DAC8806 DAC8806 SBAS385B – APRIL 2006 – REVISED FEBRUARY 2008 V+ V OUT V- t RST Submit Documentation Feedback 13 ...

  • Page 14

    ... V REF Figure 41. Gain Peaking Prevention Circuit with Compensation Capacitor Bipolar Output Circuit The DAC8806 4-quadrant multiplying DAC, can be used to generate a bipolar output. The polarity of the full-scale output ( the inverse of the input reference voltage at V OUT Using a dual op amp, such as the OPA2277, full 4-quadrant operation can be achieved with minimal components ...

  • Page 15

    ... Register WR RST Control Logic LDAC Programmable Current Source Circuit A DAC8806 can be integrated into the circuit in precise V/I conversions. Bidirectional current flow and high-voltage compliance are two features of the circuit. With a matched resistor network, the load current of the circuit is shown ...

  • Page 16

    ... SBAS385B – APRIL 2006 – REVISED FEBRUARY 2008 OFS V V DAC8806 REF REF GND Figure 43. Programmable Bidirectional Current Source Circuit Cross-Reference The DAC8806 has an industry-standard pinout. INL PRODUCT BIT (LSB) DAC8806IDB 14 ±1 16 Submit Documentation Feedback R1¢ 150kW ...

  • Page 17

    ... Changes from Original (April 2006) to Revision A Changed from "voltage-to-current" to Changed from (V/I) to (I/V) .................................................................................................................................................. 14 Copyright © 2006–2008, Texas Instruments Incorporated Revision History .................................................................................................... ........................................................................ 3 table................................................................................................ 4 Table 1 ...................................................................................................................... 13 .......................................................................................................... "current-to-voltage"..................................................................................................... 1 Product Folder Link(s): DAC8806 DAC8806 SBAS385B – APRIL 2006 – REVISED FEBRUARY 2008 Page Page Submit Documentation Feedback 17 ...

  • Page 18

    ... DAC8806IDB ACTIVE DAC8806IDBG4 ACTIVE DAC8806IDBR ACTIVE DAC8806IDBRG4 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 discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design ...

  • Page 19

    ... TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Type Drawing DAC8806IDBR SSOP DB PACKAGE MATERIALS INFORMATION Pins SPQ Reel Reel A0 (mm) Diameter Width (mm) W1 (mm) 28 2000 330.0 16.4 8.1 Pack Materials-Page 1 30-Jan-2009 B0 (mm) K0 (mm Pin1 (mm) (mm) Quadrant 10.4 2.5 12.0 16.0 Q1 ...

  • Page 20

    ... Device Package Type DAC8806IDBR SSOP PACKAGE MATERIALS INFORMATION Package Drawing Pins SPQ Length (mm 2000 Pack Materials-Page 2 30-Jan-2009 Width (mm) Height (mm) 346.0 346.0 33.0 ...

  • Page 21

    DB (R-PDSO-G**) 28 PINS SHOWN 0, 2,00 MAX PINS ** DIM A MAX A MIN NOTES: A. All linear dimensions are in millimeters. B. This drawing is subject to change without notice. C. Body dimensions do not ...

  • Page 22

    ... 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 latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’ ...