Rainbow Electronics MAX5184 - Manual (Page 10)

MAX5181/MAX5184
10-Bit, 40MHz, Current/Voltage-Output DACs
10 ______________________________________________________________________________________
Applications Information
Static and Dynamic
Performance Definitions
Integral Nonlinearity
Integral nonlinearity (INL) (Figure 5a) is the deviation of
the values on an actual transfer function from either a
best-straight-line fit (closest approximation to the actual
transfer curve) or a line drawn between the endpoints
of the transfer function once offset and gain errors have
been nullified. For a DAC, the deviations are measured
every single step.
Differential Nonlinearity
Differential nonlinearity (DNL) (Figure 5b) is the differ-
ence between an actual step height and the ideal value
of 1LSB. A DNL error specification of less than 1LSB
guarantees no missing codes and a monotonic transfer
function.
Table 1. Power-Down Mode Selection
X = Don’t care
9.6k*
I FS
0.1 µF 10 µF
DV DD
R SET
REFR
AV DD
REFO
+1.2V
BANDGAP
REFERENCE
REN DGND
AGND
AGND
CURRENT-
SOURCE ARRAY
EXTERNAL
+1.2V
REFERENCE
*9.6k Ω REFERENCE CURRENT-SET RESISTOR
INTERNAL TO MAX5184 ONLY. USE EXTERNAL
R
SET FOR MAX5181.
MAX5181
MAX5184
MAX6520
Figure 3. MAX5181/MAX5184 with External Reference
Wake-Up
High-Z
High-Z
MAX5181
MAX5181
AGND MAX5184
Shutdown X 1
Last state prior to standby mode 1 0
AGND MAX5184
Standby 0 0
OUTPUT STATE POWER-DOWN MODE DACEN (DAC ENABLE)
PD
(POWER-DOWN SELECT)