adate302-02 Analog Devices, Inc., adate302-02 Datasheet - Page 43

• Manufacturer Part Number: adate302-02
• Description: 500 Mhz Dual Integrated Dcl With Differential Drive/receive, Level Setting Dacs, And Per Pin Pmu
• Manufacturer: Analog Devices, Inc.

DETAILS OF DACs vs. LEVELS
There are ten 14-bit DACs per channel. These DACs provide
levels for the driver, comparator, load currents, VHH buffer, OVD,
and clamp levels. There are three versions of output levels:
•
•
•
Table 32. Level Transfer Functions
DAC Transfer Function
V
Code = [V
V
Code = [V
V
Code = [V
I
Code = [(I
V
Code = [V
I
Code = [(I
I
Code = [(I
I
Code = [(I
I
Code = [(I
I
Code = [(I
1
Table 33. Load Transfer Functions
Load Level
IOL
IOH
1
Table 34. PMU Transfer Functions
PMU Mode
Force Voltage
Measure Voltage
Force Current
Measure Current
1
OUT
OUT
OUT
OUT
OUT
OUT
Programmable range includes margin outside of specified part performance, allowing for offset/gain calibration.
V(IOH), V(IOL) DAC levels are not referenced to DUTGND.
R = 20 Ω for Range A; 250 Ω for Range B; 2.5 kΩ for Range C; 25 kΩ for Range D; 250 kΩ for Range E.
OUT
OUT
OUT
OUT
= [2.0 × (V
= [2.0 × (V
= [2.0 × (V
= [2.0 × (V
= [2.0 × (V
= [2.0 × (V
= 2.0 × (V
= 4.0 × (V
= 2.0 × (V
= 2.0 × (V
−2.5 V to +7.5 V; tracks DUTGND. Controls VH, VL,
VT/VCOM/VHH, VOH, VOL, VCH, and VCL levels.
−3.0 V to +7.0 V; tracks DUTGND. Controls OVD levels.
−2.5 V to +7.5 V; does not track DUTGND. Controls IOH
and IOL levels.
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
× (5.0/0.012)) + 0.5 × (V
× (5.0/0.050)) + 2.5 + 0.5 × (V
× (5.0/0.004)) + 2.5 + 0.5 × (V
× (5.0/0.0004)) + 2.5 + 0.5 × (V
× (5.0/0.00004)) + 2.5 + 0.5 × (V
× (5.0/0.000004)) + 2.5 + 0.5 × (V
− V
− V
− V
− V
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
DUTGND
DUTGND
DUTGND
DUTGND
− V
− V
− V
− V
− V
− V
− V
− V
− V
− V
REF_GND
REF_GND
REF_GND
REF_GND
REF_GND
REF_GND
REF_GND
REF_GND
REF_GND
REF_GND
+ 0.5 × (V
− 2.0 + 1.0 × (V
+ 0.6 × (V
+ 0.5 × (V
) × (Code/(2
) × (Code/(2
) × (Code/(2
) × (Code/(2
) × (Code/(2
) × (Code/(2
) × (Code/(2
) × (Code/(2
) × (Code/(2
) × (Code/(2
REF
REF
REF
− V
− V
− V
REF
REF
14
14
14
14
16
16
16
16
16
16
REF_GND
REF_GND
REF_GND
− V
)) − 0.5 × (V
)) − 0.5 × (V
)) − 0.5 × (V
)) − 0.5 × (V
)) − 0.5 × (V
)) − 0.5 × (V
)) − 0.5 × (V
)) − 1.0 × (V
)) − 0.6 × (V
)) − 0.5 × (V
− V
Transfer Function
V
V
I
V
Transfer Function
V(IOL)/5 V × 12 mA
V(IOH)/5 V × 12 mA
OUT
REF
REF
OUT
MEASOUT01
MEASOUT01
REF_GND
REF
REF_GND
)] × [(2
)] × [(2
)] × [(2
REF
− V
− V
= [PMUDAC − (V
REF
= PMUDAC
− V
− V
REF_GND
REF_GND
− V
)] × [(2
REF_GND
)] × [(2
14
14
16
REF_GND
= V
= (V
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF_GND
)/(2.0 × (V
)/(2.0 × (V
)/(2.0 × (V
− V
− V
− V
− V
− V
− V
− V
− V
− V
− V
)] × [(2
)] × [(2
DUTx
14
REF
)] × [(2
14
)/(2.0 × (V
)] × [(2
)] × [(2
REF_GND
REF_GND
REF_GND
REF_GND
REF_GND
REF_GND
REF_GND
REF_GND
REF_GND
REF_GND
/2) + V
)/(4.0 × (V
(internal sense) or V
16
16
1
REF
16
Rev. 0 | Page 43 of 52
)/(2.0 × (V
)/(2.0 × (V
REF
REF
REF
16
16
) + V
) + 2.0 + V
) + V
)] × (0.012/5.0)
) + V
) − 2.5] × (0.050/5.0)
) − 2.5] × (0.004/5.0)
) − 2.5] × (0.0004/5.0)
) − 2.5] × (0.00004/5.0)
) − 2.5] × (0.000004/5.0)
)/(2.0 × (V
/2)]/(R
DUTGND
)/(2.0 × (V
)/(2.0 × (V
− V
− V
− V
REF
DUTGND
REF
DUTGND
DUTGND
REF_GND
REF_GND
REF_GND
− V
+ (I
1
− V
× 5)
REF
REF
REF_GND
DUTGND
REF
DUTx
REF_GND
REF
))]
))]
))]
REF
− V
− V
There is one 16-bit DAC per channel. This DAC provides the
levels for the PMU. The output level is:
•
− V
− V
× 5 × R
− V
REF_GND
REF_GND
MEASOUT01
))]
REF_GND
REF_GND
))]
−2.5 V to +7.5 V; tracks DUTGND. Controls PMU levels.
REF_GND
))]
))]
1
))]
)
))]
= V
))]
PMUS_CHx
Programmable Range
(All 0s to All 1s)
−2.5 V to +7.5 V
−3.0 V to +17.0 V
−3.0 V to +7.0 V
−6 mA to +18 mA
−2.5 V to +7.5 V
−50 mA to +50 mA
−4 mA to +4 mA
−400 μA to +400 μA
−40 μA to +40 μA
−4 μA to +4 μA
(external sense)
1
ADATE302-02
Levels
VH, VL, VT/VCOM,
VOL, VOH, VCH, VCL
VHH
OVD
IOH, IOL
PMUDAC
PMUDAC
(PMU FI Range A)
PMUDAC
(PMU FI Range B)
PMUDAC
(PMU FI Range C)
PMUDAC
(PMU FI Range D)
PMUDAC
(PMU FI Range E)