Datasheet

MAX5487/MAX5488/MAX5489
Dual, 256-Tap, Nonvolatile, SPI-Interface,
Linear-Taper Digital Potentiometers
6 _______________________________________________________________________________________
VARIABLE-RESISTOR INL
vs. TAP POSITION (MAX5488)
MAx5487-89 toc12
TAP POSITION
INL (LSB)
22419232 64 96 128 160
-0.6
-0.8
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1.0
-1.0
0256
-0.20
-0.10
-0.15
0
-0.05
0.05
0.10
0.15
0.20
0649632 128 160 192 224 256
VOLTAGE-DIVIDER DNL
vs. TAP POSITION (MAX5487)
MAX5487-89 toc13
TAP POSITION
DNL (LSB)
VOLTAGE-DIVIDER DNL
vs. TAP POSITION (MAX5488)
MAx5487-89 toc15
TAP POSITION
DNL (LSB)
22419232 64 96 128 160
-0.15
-0.10
-0.05
0
0.05
0.10
0.15
0.20
-0.20
0256
VOLTAGE-DIVIDER INL
vs. TAP POSITION (MAX5488)
MAx5487-89 toc16
TAP POSITION
INL (LSB)
22419232 64 96 128 160
-0.6
-0.8
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1.0
-1.0
0 256
0.6
0.2
0.4
0.2
0
0.6
0.4
0.8
1.2
1.0
1.4
0649632 128 160 192 224 256
VOLTAGE-DIVIDER INL
vs. TAP POSITION (MAX5487)
MAX5487-89 toc14
TAP POSITION
INL (LSB)
Typical Operating Characteristics (continued)
(V
DD
= +5.0V, T
A
= +25°C, unless otherwise noted.)
MIDSCALE FREQUENCY RESPONSE
(MAX5488)
MAX5487-89 toc09
FREQUENCY (kHz)
GAIN (dB)
100101
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
-50
0.1 1000
C
W_
= 10pF
C
W_
= 50pF
MIDSCALE FREQUENCY RESPONSE
(MAX5489)
MAX5487-89 toc10
FREQUENCY (kHz)
GAIN (dB)
100101
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
-50
0.1 1000
C
W_
= 10pF
C
W_
= 50pF
VARIABLE-RESISTOR DNL
vs. TAP POSITION (MAX5488)
MAx5487-89 toc11
TAP POSITION
DNL (LSB)
22419232 64 96 128 160
-0.15
-0.10
-0.05
0
0.05
0.10
0.15
0.20
-0.20
0256