SBAS721A December   2015  – January 2016 DAC60096

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions
    4. 6.4  Thermal Information
    5. 6.5  Electrical Characteristics: DAC DC
    6. 6.6  Electrical Characteristics: Square-Wave Output
    7. 6.7  Electrical Characteristics: General
    8. 6.8  Timing Requirements
    9. 6.9  Typical Characteristics: DC Mode
    10. 6.10 Typical Characteristics: Toggle Mode
    11. 6.11 Typical Characteristics, General
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Digital-to-Analog Converters (DACs)
        1. 7.3.1.1 DAC Transfer Function
        2. 7.3.1.2 DAC Register Structure
      2. 7.3.2 Reference Specifications
    4. 7.4 Device Functional Modes
      1. 7.4.1 Toggle Mode
      2. 7.4.2 DC Mode
    5. 7.5 Programming
      1. 7.5.1 Frame Error Checking
    6. 7.6 Register Maps
      1. 7.6.1 8.5.1 BUFA Register (address = 0x0) [reset = 0x0000]
      2. 7.6.2 BUFB Register (address = 0x1) [reset = 0x0000]
      3. 7.6.3 CON Register (address = 0x4) [reset = 0x0555]
      4. 7.6.4 CRC Register (address = 0x5) [reset = 0xFFF]
      5. 7.6.5 PTR Register (address = 0x6) [reset = 0x0000]
      6. 7.6.6 SWR Register (address = 0x7) [reset = 0x0000]
      7. 7.6.7 PWRM Register (address = 0x6) [reset = 0xCAFE]
      8. 7.6.8 SDIV Register (address = 0x9) [reset = 0x0000]
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Power-Supply Bypassing
        2. 8.2.2.2 Reference Input
        3. 8.2.2.3 TRIGG/Signal Conditioning
        4. 8.2.2.4 External Amplifier Selection
        5. 8.2.2.5 Unbuffered Settling Response
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
    1. 9.1 Device Reset Options
      1. 9.1.1 Power-on-Reset (POR)
      2. 9.1.2 Hardware Reset
      3. 9.1.3 Software Reset
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Examples
      1. 10.2.1 Optimal Layout Example
      2. 10.2.2 Standard Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Community Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

6 Specifications

6.1 Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted)(1)
MIN MAX UNIT
Supply voltage AVCC to DGND –0.3 13 V
AVSS to DGND –13 0.3
DVDD to DGND –0.3 6
AVCC to AVSS –0.3 26
DGND to AGND –0.3 0.3
DGND to REFGND[1,2] –0.3 0.3
Pin voltage REF1 to REFGND1 –0.3 6 V
REF2 to REFGND2 –0.3 6
DAC to DGND AVSS – 0.3 AVCC + 0.3
CLEAR, CS, LDAC, RESET, SCLK, SDI, SDO, TRIGG, STATS to DGND –0.3 DVDD + 0.3
VREFH to DGND –0.3 AVCC + 0.3
VREFL to DGND AVSS – 0.3 0.3
VREFH to adjacent VREFL –0.3 26
Temperature Operating, TA –40 85 °C
Junction, TJ –40 150
Storage, Tstg –40 150
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

6.2 ESD Ratings

VALUE UNIT
V(ESD) Electrostatic discharge Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) ±2000 V
Charged-device model (CDM), per JEDEC specification JESD22-C101(2) ±500
(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
(2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.

6.3 Recommended Operating Conditions

over operating free-air temperature range (unless otherwise noted)
MIN NOM MAX UNIT
POWER SUPPLY
AVCC 11.2 12 12.6 V
AVSS –12.6 –12 –11.2 V
DVDD 3 3.3 5.5 V
AVCC to AVSS 22.4 24 25.2 V
DIGITAL INPUTS
Digital input voltage 0 DVDD V
REFERENCE INPUT
Reference input voltage, VREF 2.475 2.5 2.525 V
TEMPERATURE
Operating ambient temperature, TA –40 85 °C

6.4 Thermal Information

THERMAL METRIC(1) DAC60096 UNIT
ZEB (NFBGA)
196 BALLS
RθJA Junction-to-ambient thermal resistance 21.4 °C/W
RθJC(top) Junction-to-case (top) thermal resistance 7.5 °C/W
RθJB Junction-to-board thermal resistance 5.1 °C/W
ψJT Junction-to-top characterization parameter 0.4 °C/W
ψJB Junction-to-board characterization parameter 5.0 °C/W
RθJC(bot) Junction-to-case (bottom) thermal resistance N/A °C/W
(1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953.

6.5 Electrical Characteristics: DAC DC

at AVCC = 11.2 V to 12.6 V, AVSS = –12.6 V to –11.2 V, DVDD = 3 V to 5.5 V, AGND = DGND = REFGND[1,2] = 0 V, REF1 = REF2 = 2.5 V (specifications exclude any reference contributions), no load on DACs, and TA = –40°C to +85°C (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
STATIC PERFORMANCE
Resolution 12 Bits
INL Relative accuracy ±0.15 ±1 LSB
DNL Differential nonlinearity Specified 12-bit monotonic ±0.1 ±0.9 LSB
Gain error TA = 25°C ±0.05 ±0.15 %FSR
Zero-code error TA = 25°C, code 000h ±2 ±7 mV
Gain error drift ±1 ppm/°C
Zero-code error drift ±1 ppm/°C
OUTPUT CHARACTERISTICS
Output voltage –10.5 10.5 V
Output impedance 41 kΩ
DC crosstalk Measured channel at code 000h, all others transition from code 7FFh to 02Bh 0.5 LSB
Settling time DAC ouput transition:
code 800h to 7FFh to within 1 LSB,
6x load:
R(SERIES) = 17 kΩ, CLOAD = 300 pF 		160 µs
DAC ouput transition:
code 800h to 7FFh to within 1 LSB,
1x load:
R(SERIES) = 100 kΩ, CLOAD = 50 pF		 65
Output noise TA = 25°C, 1 kHz, code 000h 60 nV/√Hz

6.6 Electrical Characteristics: Square-Wave Output

at AVCC = 11.2 V to 12.6 V, AVSS = –12.6 V to –11.2 V, DVDD = 3 V to 5.5 V, AGND = DGND = REFGND[1,2] = 0 V, REF1 = REF2 = 2.5 V (specifications exclude any reference contributions), no load on DACs, and TA = –40°C to +85°C (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
DAC OUTPUTS – 6x LOAD: R(SERIES) = 17 kΩ, CLOAD = 300 pF
Frequency For amplitude ≥ 9.1 VRMS, amplitude = ±10.5 VPP,
codes 7FFh to 801h 		3 kHz
Amplitude Frequency = 3 kHz, amplitude = ±10.5 VPP,
codes 7FFh to 801h		 9.1 VRMS
Frequency = 5 kHz, amplitude = ±10.5 VPP,
codes 7FFh to 801h		 8 VRMS
Amplitude step precision Frequency = 3 kHz, amplitude ≥ 1 VRMS 6 mVRMS
Amplitude temperature drift Frequency = 3 kHz, amplitude = ±5 VPP,
codes 3CFh to C31h		 5 mVRMS
Frequency = 3 kHz, amplitude = ±10.5 VPP,
codes 7FFh to 801h		 15 mVRMS
Offset voltage Frequency = 3 kHz, amplitude = ±5 VPP,
codes 3CFh to C31h		 –10 10 mV
Frequency = 3 kHz, amplitude = ±10.5 VPP,
codes 7FFh to 801h		 –10 10 mV
Rise and fall time Frequency = 3 kHz, amplitude = ±10.5 VPP,
10% to 90%, codes 7FFh to 801h 		40 µs
DAC OUTPUTS – 1x LOAD: R(SERIES) = 100 kΩ, CLOAD = 50 pF (1)
Frequency For amplitude ≥ 9.1 VRMS, amplitude = ±10.5 VPP,
codes 7FFh and 801h 		5 kHz
Amplitude Frequency = 3 kHz, amplitude = ±10.5 VPP,
codes 7FFh to 801h		 10 VRMS
Frequency = 5 kHz, amplitude = ±10.5 VPP,
codes 7FFh to 801h		 9.5 VRMS
Amplitude step precision Frequency = 3 kHz, amplitude ≥ 1 VRMS 7 mVRMS
Amplitude temperature drift Frequency = 3 kHz, amplitude = ±5 VPP,
codes 3CFh to C31h		 5 mVRMS
Frequency = 3 kHz, amplitude = ±10.5 VPP,
codes 7FFh to 801h		 15 mVRMS
Offset voltage Frequency = 3 kHz, amplitude = ±5 VPP,
codes 3CFh to C31h		 –10 10 mV
Frequency = 3 kHz, amplitude = ±10.5 VPP,
codes 7FFh to 801h		 –10 10 mV
Rise and fall time Frequency = 3 kHz, amplitude = ±10.5 VPP,
10% to 90%, codes 7FFh to 801h 		10 µs
(1) Specified by design and characterization. Not tested during production.

6.7 Electrical Characteristics: General

at AVCC = 11.2 V to 12.6 V, AVSS = –12.6 V to –11.2 V, DVDD = 3 V to 5.5 V, AGND = DGND = REFGND[1,2] = 0 V, REF1 = REF2 = 2.5 V (specifications exclude any reference contributions), no load on DACs, and TA = –40°C to +85°C (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
EXTERNAL REFERENCE INPUTS
VREF Input voltage range REF1 and REF2 input pins 2.475 2.5 2.525 V
Reference input current Per input pin 1 µA
DIGITAL LOGIC
VIH High-level input voltage 0.7 × DVDD V
VIL Low-level input voltage 0.3 × DVDD V
VOH High-level output voltage ILOAD = 1 mA, SDO2x = 01 DVDD - 0.2 V
VOL Low-level output voltage ILOAD = –1 mA, SDO2x = 01 0.4 V
Input capacitance 20 pF
POWER REQUIREMENTS (1)
I(AVCC) AVCC supply current 6x load:
R(SERIES) = 17 kΩ, CLOAD = 300 pF
frequency = 3 kHz
48 DAC outputs, codes 7FFh and 801h
48 DAC outputs, codes 117h and EE9h 		18.1 25 mA
I(AVSS) AVSS supply current –25 –18.1 mA
I(DVDD) DVDD supply current 2 10 mA
Power consumption 440 mW
I(AVCC) AVCC supply current 1x load:
R(SERIES) = 100 kΩ, CLOAD = 50 pF
frequency = 3 kHz
48 DAC outputs, codes 7FFh and 801h
48 DAC outputs, codes 117h and EE9h (2)		 17 22 mA
I(AVSS) AVSS supply current –22 –17 mA
I(DVDD) DVDD supply current 2 10 mA
Power consumption 415 mW
I(AVCC) AVCC supply current 6x load:
R(SERIES) = 17 kΩ, CLOAD = 300 pF
frequency = 3 kHz
All DAC outputs, codes 02Bh and FD5h 		25 30 mA
I(AVSS) AVSS supply current –30 –25 mA
I(DVDD) DVDD supply current 2 10 mA
Power consumption 650 760 mW
(1) Power requirements tested unloaded during production. Load current contribution to power consumption specified by design and characterization.
(2) Specified by design and characterization. Not tested during production.

6.8 Timing Requirements(1)(2)

at AVCC = 11.2 V to 12.6 V, AVSS = –12.6 V to –11.2 V, DVDD = 3 V to 5.5 V, AGND = DGND = REFGND[1,2] = 0 V, REF1 = REF2 = 2.5 V (specifications exclude any reference contributions), no load on DACs, and TA = –40°C to +85°C (unless otherwise noted)
MIN NOM MAX UNIT
SERIAL INTERFACE – DEFAULT MODE: SDO2X = 01, PHAINV = 01
fSCLK SCLK frequency Write operation 32 MHz
Read operation 18 MHz
tPH SCLK pulse width high Write operation 14 ns
Read operation 26 ns
tPL SCLK pulse width low Write operation 14 ns
Read operation 26 ns
tSU SDI setup 5 ns
tH SDI hold 10 ns
tCSS CS setup 10 ns
tCSH CS hold 20 ns
tIAG Inter-access gap 70 ns
tODZ SDO driven to tri-state Read operation 0 20 ns
tOZD SDO tri-state to driven Read operation 0 20 ns
tOD1 SDO output delay Read operation 0 20 ns
SERIAL INTERFACE – FAST MODE: SDO2X = 10, PHAINV = 10
fSCLK SCLK frequency Write operation 32 MHz
Read operation 32 MHz
tPH SCLK pulse width high Write operation 14 ns
Read operation 14 ns
tPL SCLK pulse width low Write operation 14 ns
Read operation 14 ns
tSU SDI setup 5 ns
tH SDI hold 10 ns
tCSS CS setup 10 ns
tCSH CS hold 20 ns
tIAG Inter-access gap 70 ns
tODZ SDO driven to tri-state Read operation 0 20 ns
tOZD SDO tri-state to driven Read operation 0 20 ns
tOD2 SDO output delay Read operation 0 20 ns
DIGITAL LOGIC
tRESETDLY Reset delay Delay from power-on-reset to normal operation 100 250 µs
Delay from hardware reset to normal operation 10 50 µs
Delay from software reset to normal operation 10 50 µs
tRESETWD RESET pulse width 500 ns
tLDACS LDAC setup 0 ns
tLDACH LDAC hold 0 ns
tTRIGH TRIGG pulse width high 30 ns
tTRIGL TRIGG pulse width low 30 ns
tSTADLY STATS output delay 25 ns
(1) Specified by design and characterization. Not tested during production.
(2) SDO loaded with 10-pF load capacitance for SDO timing specifications.
Figure 1. Serial Interface Write Timing Diagram
Figure 2. Serial Interface Read Timing Diagram
Figure 3. Digital Logic Timing Diagram

6.9 Typical Characteristics: DC Mode

at AVCC = 12 V, AVSS = –12 V, DVDD = 3.3 V, AGND = DGND = REFGND[1,2] = 0 V, REF1 = REF2 = 2.5 V (specifications exclude any reference contributions), no load on DACs, and TA = 25°C (unless otherwise noted)
DAC60096 C001_SLASEB3_DNL.png
Figure 4. Differential Linearity Error (DNL)
DAC60096 C005_SBAS721_DNL_OT.png
Figure 6. DNL vs Temperature
DAC60096 C007_SBAS721_ZCE_OT.png
Figure 8. Zero-Code Error vs Temperature
DAC60096 C011_SLASEB3_Noise.png
Figure 10. DAC Output Noise vs Frequency
DAC60096 C002_SLASEB3_INL.png
Figure 5. Integral Linearity Error (INL)
DAC60096 C006_SBAS721_INL_OT.png
Figure 7. INL vs Temperature
DAC60096 C008_SBAS721_GE_OT.png
Figure 9. Gain Error vs Temperature
DAC60096 C012_SBAS721_Settling.png
Figure 11. Settling Time Amplitude vs Capacitive Load

6.10 Typical Characteristics: Toggle Mode

at AVCC = 12 V, AVSS = –12 V, DVDD = 3.3 V, AGND = DGND = REFGND[1,2] = 0 V, REF1 = REF2 = 2.5 V (specifications exclude any reference contributions), no load on DACs, and TA = 25°C (unless otherwise noted)
DAC60096 C013_SLASEB3_AmpVsC_RC.png
1x load: R(SERIES) = 100 kΩ, CLOAD = 50 pF
Figure 12. Maximum Amplitude vs Capacitive Load
DAC60096 C016_SLASEB3_Amp_OT_RC.png
Figure 14. Amplitude Drift vs Temperature
DAC60096 C020_SLASEB3_Amp_OS_RC.png
Figure 16. Amplitude Drift vs Supply Voltage
DAC60096 C015_SBAS721_OffsetVsAmp.png
Figure 13. Offset vs Amplitude
DAC60096 C017_SLASEB3_Off_OT_RC.png
Figure 15. Offset vs Temperature
DAC60096 C021_SLASEB3_Off_OS_RC.png
Figure 17. Offset vs Supply Voltage

6.11 Typical Characteristics, General

at AVCC = 12 V, AVSS = –12 V, DVDD = 3.3 V, AGND = DGND = REFGND[1,2] = 0 V, REF1 = REF2 = 2.5 V (specifications exclude any reference contributions), no load on DACs, and TA = 25°C (unless otherwise noted)
DAC60096 C024_SLASEB3_DAC_CT.png
DAC A: square-wave output, freq = 1 kHz, full-scale amplitude
DAC B: zero-code inputs
Figure 18. DAC to DAC Crosstalk
DAC60096 C026_SLASEB3_PowerUp.png
Figure 20. Recommended Power-Up Sequence
DAC60096 C028_SLASEB3_DVDD.png
6x load: R(SERIES) = 17 kΩ, CLOAD = 300 pF
Square-wave output: freq = 1 kHz, full-scale amplitude
Figure 22. DVDD Collapse and Recover
DAC60096 C030_SLASEB3_Normal2Clear.png
6x load: R(SERIES) = 17 kΩ, CLOAD = 300 pF
Square-wave output: freq = 1 kHz, full-scale amplitude
Figure 24. Normal to Clear State Transition
DAC60096 C032_SLASEB3_LDAC.png
6x load: R(SERIES) = 17 kΩ, CLOAD = 300 pF
Square-wave output: freq = 1 kHz, full-scale amplitude
Figure 26. LDAC DAC Transition
DAC60096 C034_SBAS721_StaticIQ.png
No DAC load, DVDD = 3.3 V
Square-wave output: freq = 3 kHz
Figure 28. Unloaded AVCC/AVSS Current Consumption
DAC60096 C036_SBAS721_DynamicIQ_AVCC.png
1x load: R(SERIES) = 100 kΩ, CLOAD = 50 pF, DVDD = 3.3 V
Square-wave output, full-scale amplitude
Figure 30. AVCC Load Current Consumption
DAC60096 C025_SLASEB3_SPIxTalk.png
All DACs with zero-code inputs
SCLK frequency = 1 MHz
Figure 19. SPI to DAC Crosstalk
DAC60096 C027_SLASEB3_PowerDown.png
Figure 21. Recommended Power-Down Sequence
DAC60096 C029_SLASEB3_AVCC.png
6x load: R(SERIES) = 17 kΩ, CLOAD = 300 pF
Square-wave output: freq = 1 kHz, full-scale amplitude
Figure 23. AVCC Collapse and Recover
DAC60096 C031_SLASEB3_Clear2Normal.png
6x load: R(SERIES) = 17 kΩ, CLOAD = 300 pF
Square-wave output: freq = 1 kHz, full-scale amplitude
Figure 25. Clear State to Normal Transition
DAC60096 C033_SLASEB3_DVDD.png
No DAC load
Square-wave output: freq = 3 kHz, full-scale amplitude
Figure 27. DVDD Current Consumption
DAC60096 C035_SBAS721_StaticIQ_SW.png
No DAC load, DC output, DVDD = 3.3 V
Figure 29. Unloaded AVCC/AVSS Current Consumption
DAC60096 C037_SBAS721_DynamicIQ_AVSS.png
1x load: R(SERIES) = 100 kΩ, CLOAD = 50 pF, DVDD = 3.3 V
Square-wave output, full-scale amplitude
Figure 31. AVSS Load Current Consumption