Datasheet

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TYPICAL CHARACTERISTICS
−1
−0.5
0
0.5
1
Linearity Error − LSB
−0.5
−0.25
0
0.25
0.5
0 512 1024 1536 2048 2560 3072 3584 4096
Digital Input Code
Differential Linearity Error − LSB
Channel A V
REF
= 4.096 V V
DD
= 5 V
−1
−0.5
0
0.5
1
−0.5
−0.25
0
0.25
0.5
0 512 1024 1536 2048 2560 3072 3584 4096
Digital Input Code
Linearity Error − LSBDifferential Linearity Error − LSB
Channel B V
REF
= 4.096 V V
DD
= 5 V
DAC7558
SLAS435A – MAY 2005 – REVISED DECEMBER 2005
PIN DESCRIPTION (continued)
Terminal Functions (continued)
25 VREF4 Positive reference voltage input for DAC G and DAC H
26 DCEN Daisy-chain enable
27 PD Power down
28 VDD Analog voltage supply input
29 AGND
(1)
Analog ground
30 RSTSEL Reset select. If this pin is low, input coding is binary; if high, then 2s compliment.
31 RST Asynchronous reset. Active low. If RST pin is low, all DAC channels reset either to zero scale (RSTSEL = 0) or to
midscale (RSTSEL = 1).
32 VREF1 Positive reference voltage input for DAC A and DAC B
(1) Thermal pad should be connected to AGND.
LINEARITY ERROR AND LINEARITY ERROR AND
DIFFERENTIAL LINEARITY ERROR DIFFERENTIAL LINEARITY ERROR
vs vs
DIGITAL INPUT CODE DIGITAL INPUT CODE
Figure 2. Figure 3.
7