AD5556 ,Current-Output Parallel-Input, 14-Bit Digital-to-Analog Converterapplications. The feedback resistor (R ) simpli-FB fies the I-V conversion with an external buffer. ..
AD557JNZ , DACPORT Low Cost, Complete μP-Compatible 8-Bit DAC
AD557JP-REEL ,DACPORT Low Cost, Complete µP-Compatible 8-Bit DAC
AD558KP ,DACPORT Low Cost, Complete uP-Compatible 8-Bit DAC
AD558TD , DACPORT Low Cost, Complete uP-Compatible 8-Bit DAC
AD5601 ,2.7 V to 5.5 V, <100 µA, 8-Bit nanoDAC™ D/A Converter, SPI Interface, SC70 PackageFEATURES FUNCTIONAL BLOCK DIAGRAM 6-lead SC70 package VDD GNDPower-down to <100 nA @ 3 V Micropowe ..
AD96685BQ ,Ultrafast ComparatorsSPECIFICATIONS1ABSOLUTE MAXIMUM RATINGS EXPLANATION OF TEST LEVELSTest LevelPositive Supply Voltage ..
AD96685BR ,Ultrafast ComparatorsFEATURES AD96685 FUNCTIONAL BLOCK DIAGRAMFast: 2.5 ns Propagation DelayLow Power: 118 mW per Compar ..
AD96685TQ ,Ultrafast ComparatorsCHARACTERISTICS4Input Offset Voltage +25°CI 1 2 12 12 12 mVFull VI 3333mVInput Offset Drift Full V ..
AD96687BP ,Ultrafast ComparatorsGENERAL DESCRIPTION families. The outputs provide sufficient drive current to directlyThe AD96685 a ..
AD96687BQ ,Ultrafast ComparatorsGENERAL DESCRIPTION families. The outputs provide sufficient drive current to directlyThe AD96685 a ..
AD96687BR ,Ultrafast ComparatorsSPECIFICATIONS1ABSOLUTE MAXIMUM RATINGS EXPLANATION OF TEST LEVELSTest LevelPositive Supply Voltage ..
AD5556
Current-Output Parallel-Input, 14-Bit Digital-to-Analog Converter
Current Output, Parallel Input, 16-/14-Bit
Multiplying DACs with 4-Quadrant Resistors
Rev. 0
FEATURES
16-bit resolution
14-bit resolution
2- or 4-quadrant multiplying DAC
±1 LSB DNL
±1 LSB INL or ±2 LSB INL
Operating supply voltage: 2.7 V to 5.5 V
Low noise: 12 nV/√Hz
Low power: IDD = 10 µA
0.5 µs settling time
Built-in RFB facilitates current-to-voltage conversion
Built-in 4-quadrant resistors allow 0 V to –10 V, 0 V to +10 V,
or ±10 V outputs
2 mA full-scale current ±20%, with VREF = 10 V
Automotive operating temperature: –40°C to +125°C
Compact TSSOP-28 package
APPLICATIONS
Automatic test equipment
Instrumentation
Digitally controlled calibration
Digital waveform generation
FUNCTIONAL BLOCK DIAGRAM
LDAC
MSBRS
DB0–DB15
VDDRCOMREFROFS
RFB
IOUT
GND03810-0-001Figure 1. AD5546/AD5556 Simplified Block Diagram
GENERAL DESCRIPTION The AD5546/AD5556 are precision 16-/14-bit, multiplying, low
power, current output, parallel input D/A converters. They
operate from a single 2.7 V to 5.5 V supply with ±10 V multi-
plying references for 4-quadrant outputs. Built-in 4-quadrant
resistors facilitate the resistance matching and temperature
tracking that minimize the number of components needed for
multiquadrant applications. The feedback resistor (RFB) simpli-
fies the I-V conversion with an external buffer. The AD5546/
AD5556 are packaged in compact TSSOP-28 packages with
operating temperatures from –40°C to +125°C.
5V
VOUT
16/14 DATA
LDAC
MSB03810-0-002 Figure 2. 16-/14-Bit, 4-Quadrant Multiplying DAC with a Minimum of External Components
TABLE OF CONTENTS Specifications.....................................................................................3
Absolute Maximum Ratings............................................................5
Pin Configurations and Functional Descriptions........................6
Typical Performance Characteristics.............................................8
Circuit Operation...........................................................................11
D/A Converter Section..............................................................11
Digital Section.............................................................................12
ESD Protection Circuits.............................................................12
Amplifier Selection.....................................................................12
Reference Selection....................................................................12
Applications.....................................................................................13
Unipolar Mode...........................................................................13
Bipolar Mode..............................................................................14
AC Reference Signal Attenuator...............................................15
System Calibration.....................................................................15
Outline Dimensions.......................................................................16
Ordering Guide..........................................................................16
REVISION HISTORY Revision 0: Initial Version
SPECIFICATIONS
Table 1. Electrical Characteristics. VDD = 2.7 V to 5.5 V, IOUT = virtual GND, GND = 0 V, VREF = –10 V to 10 V, TA = full operating
temperature range, unless otherwise noted.
1 All static performance tests (except IOUT) are performed in a closed-loop system, using an external precision OP97 I-V converter amplifier. The AD554x RFB terminal is
tied to the amplifier output. The op amp +IN is grounded and the DAC IOUT is tied to the op amp –IN. Typical values represent average readings measured at 25°C.
2 These parameters are guaranteed by design and not subject to production testing. All input control signals are specified with tR = tF = 2.5 ns (10% to 90% of 3 V), and timed from a voltage level of 1.5 V.
4 All ac characteristic tests are performed in a closed-loop system using an AD841 I-V converter amplifier.
ABSOLUTE MAXIMUM RATINGS
Table 2. Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those listed in the operational sections
of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
ESD CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on
the human body and test equipment and can discharge without detection. Although this product features
proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy
electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance
degradation or loss of functionality.
PIN CONFIGURATIONS AND FUNCTIONAL DESCRIPTIONS 03810-0-003
VDDD8D9D10D11D12D13D14
ROFSD15
RFBGNDRS
RCOMMSB
REFWR
IOUTLDAC Figure 3.AD5546 Pin Configuration
NC = NO CONNECTVDDD6D7D8D9D10D11D12
ROFSD13
RFBGNDRS
RCOMMSB
REFWR
IOUTLDACFigure 4. AD5556 Pin Configuration
Table 3. AD5546 Functional Descriptions
Table 4. AD5556 Functional Descriptions
DATA
LDACFigure 5. AD5546/AD5556 Timing Diagram
Table 5. AD5546 Parallel Input Data Format
Table 6. AD5556 Parallel Input Data Format
Table 7. Control Inputs
TYPICAL PERFORMANCE CHARACTERISTICS
INL
LSB)
CODE(Decimal) Figure 6. AD5546 Integral Nonlinearity Error
DNL (LS
CODE (Decimal) Figure 7. AD5546 Differential Nonlinearity Error
INL (LSB)
CODE (Decimal) Figure 8. AD5556 Integral Nonlinearity Error
DNL (LS
CODE (Decimal) Figure 9. AD5556 Differential Nonlinearity Error
LINE
ARITY
RROR (LS
SUPPLY VOLTAGE VDD (V)Figure 10. Linearity Error vs. VDD
CURRE
NT I
(LS
LOGIC INPUT VOLTAGE VIH (V)Figure 11. Supply Current vs. Logic Input Voltage
