Table 1. i, And r – Rainbow Electronics MAX5886 User Manual
Page 9
MAX5886
3.3V, 12-Bit, 500Msps High Dynamic
Performance DAC with Differential LVDS Inputs
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9
ended output voltages. The differential voltage existing
between IOUTP and IOUTN can also be converted to a
single-ended voltage using a transformer or a differen-
tial amplifier configuration. If no transformer is used, the
output should have a 50
Ω termination to the analog
ground and a 50
Ω resistor between the outputs.
Although not recommended because of additional
noise pickup from the ground plane, for single-ended
operation IOUTP should be selected as the output, with
IOUTN connected to AGND. Note that a single-ended
output configuration has a higher 2nd-order harmonic
distortion at high output frequencies than a differential
output configuration.
1.2V
REFERENCE
CURRENT-STEERING
DAC
FUNCTION
SELECTION
BLOCK
AGND
SEL0
DGND
DV
DD
REFIO
FSADJ
CLKN
CLKP
PD
AV
DD
IOUTP
IOUTN
SEGMENT SHUFFLING/LATCH
DECODER
LVDS RECEIVER/INPUT LATCH
12
DIFFERENTIAL DIGITAL INPUTS B0 THROUGH B11
MAX5886
Figure 1. Simplified MAX5886 Block Diagram
R
SET
(k
Ω)
FULL-SCALE CURRENT
I
OUT
(mA)
REFERENCE CURRENT
I
REF
(µA)
CALCULATED
1% EIA STD
OUTPUT VOLTAGE
V
IOUTP/N
* (mV
P-P
)
2
62.5
19.2
19.1
100
5
156.25
7.68
7.5
250
10
312.5
3.84
3.83
500
15
468.75
2.56
2.55
750
20
625
1.92
1.91
1000
Table 1. I
OUT
and R
SET
Selection Matrix Based on a Typical 1.200V Reference Voltage
*Terminated into a 50
Ω load.