max5510etct Maxim Integrated Products, Inc., max5510etct Datasheet - Page 17

• Manufacturer Part Number: max5510etct
• Description: +1.8v To +5.5v, Ultra-low-power, 8-bit, Voltage-output Dacs
• Manufacturer: Maxim Integrated Products, Inc.

An example of a custom fixed gain using the force-sense
output of the MAX5510/MAX5511 is shown in Figure 9. In
this example R1 and R2 set the gain for V
where N
input code.
Figure 9. Separate Force-Sense Outputs Create Unity and
Greater-than-Unity DAC Gains Using the Same Reference
Pages changed at Rev 1: 1, 13, 17, 18
Figure 10. Software-Configurable Output Gain
V
OUT
SCLK
REFIN
CS1
CS2
A
DIN
= [(V
represents the numeric value of the DAC
REFIN
REFIN
DAC
______________________________________________________________________________________
MAX5510
x N
+1.8V to +5.5V, Ultra-Low-Power, 8-Bit,
MAX5510
A
1.8V ≤ V
DAC
) / 256] x [1 + (R2 / R1)]
Revision History
DD
≤ 5.5V
FB
FB
OUT
OUT
R2
R1
.
V
OUT
VOUT
H
W
L
Bypass the power supply with a 0.1µF capacitor to GND.
Minimize lengths to reduce lead inductance. If noise
becomes an issue, use shielding and/or ferrite beads to
increase isolation. For the thin QFN package, connect
the exposed paddle to ground.
Digital and AC transient signals coupling to GND can
create noise at the output. Use proper grounding tech-
niques, such as a multilayer board with a low-inductance
ground plane. Wire-wrapped boards and sockets are not
recommended. For optimum system performance, use
printed circuit (PC) boards. Good PC board ground lay-
out minimizes crosstalk between DAC outputs, reference
inputs, and digital inputs. Reduce crosstalk by keeping
analog lines away from digital lines.
RATIOMETRIC
TRANSISTOR COUNT: 10,688
PROCESS: BiCMOS
MAX5401
SOT-POT
5PPM/°C
TEMPCO
100kΩ
Voltage-Output DACs
V
OUT
N
N
DAC
POT
Power Supply and Bypassing
Layout Considerations
IS THE NUMERIC VALUE OF THE POT INPUT CODE.
IS THE NUMERIC VALUE OF THE DAC INPUT CODE.
V
OUT
=
V
REFIN
256
Chip Information
× N
DAC
(
1 +
Considerations
255 - N
255
POT
)
17