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ManualsBrandsMAXIM INTEGRATED ManualsData collecting ICsData acquisition IC - Digital potentiometer linear Non-permanent TDFN 8 EP
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(V
DD
= 1.8V, T
A
= +25°C, unless otherwise noted.)
MIDSCALE FREQUENCY
RESPONSE (50kΩ)
FREQUENCY (Hz)
GAIN (dB)
1M100k10k1k0.1k
-20
-10
0
10
-30
0.01k 10M
MAX5394 toc14
V
DD
= 1.8V
V
DD
= 5V
V
IN
= 1V
P-P
C
W
= 10pF
MIDSCALE FREQUENCY
RESPONSE (100kΩ)
FREQUENCY (Hz)
GAIN (dB)
1M100k10k1k0.1k
-20
-10
0
10
-30
0.01k 10M
MAX5394 toc15
V
DD
= 1.8V
V
DD
= 5V
V
IN
= 1V
P-P
C
W
= 10pF
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY
MAX5394 toc16
FREQUENCY (kHz)
THD+N (%)
1010.1
0.02
0.04
0.06
0.08
0.10
0.12
0.14
0.16
0.18
0.20
0
0.01 100
10kΩ
50kΩ
100kΩ
CHARGE-PUMP FEEDTHROUGH AT W
MAX5394 toc17
FREQUENCY (MHz)
0.50 2.00
VOLTAGE (nV
RMS
)
100
200
300
400
500
600
700
800
900
1000
0
1.75
1.501.251.000.75
100kΩ
50kΩ
10kΩ
VARIABLE-RESISTOR DNL
vs. TAP POSITION (10kΩ)
MAX5394 toc18a
TAP POSITION
DNL (LSB)
-0.4
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0.4
0.5
-0.5
0 256224192128 16064 9632
V
DD
= 1.8V, V
H
= 5.0V, CHARGE PUMP ON
V
DD
= 2.6V, V
H
= 2.6V, CHARGE PUMP OFF
V
DD
= 5.0V, V
H
= 5.0V, CHARGE PUMP OFF
VARIABLE-RESISTOR DNL
vs. TAP POSITION (50kΩ)
MAX5394 toc18b
TAP POSITION
DNL (LSB)
-0.4
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0.4
0.5
-0.5
0
256224192128 16064 9632
V
DD
= 1.8V, V
H
= 5.0V, CHARGE PUMP ON
V
DD
= 2.6V, V
H
= 2.6V, CHARGE PUMP OFF
V
DD
= 5.0V, V
H
= 5.0V, CHARGE PUMP OFF
MIDSCALE FREQUENCY
RESPONSE (10kΩ)
FREQUENCY (Hz)
GAIN (dB)
1M100k10k1k0.1k
-20
-10
0
10
-30
0.01k 10M
MAX5394 toc13
V
DD
= 1.8V
V
DD
= 5V
V
IN
= 1V
P-P
C
W
= 10pF
VARIABLE-RESISTOR DNL
vs. TAP POSITION (100kΩ)
MAX5394 toc18c
TAP POSITION
DNL (LSB)
-0.4
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0.4
0.5
-0.5
0
256224192128 16064 9632
V
DD
= 1.8V, V
H
= 5.0V, CHARGE PUMP ON
V
DD
= 2.6V, V
H
= 2.6V, CHARGE PUMP OFF
V
DD
= 5.0V, V
H
= 5.0V, CHARGE PUMP OFF
VARIABLE-RESISTOR INL
vs. TAP POSITION (10kΩ)
MAX5394 toc19a
TAP POSITION
INL (LSB)
-0.4
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0.4
0.5
-0.5
0
256224192128 16064 9632
V
DD
= 1.8V, V
H
= 5.0V, CHARGE PUMP ON
V
DD
= 5.0V, V
H
= 5.0V, CHARGE PUMP OFF
V
DD
= 2.6V,
V
H
= 2.6V,
CHARGE
PUMP OFF
Maxim Integrated
│
8
www.maximintegrated.com
MAX5394 Single, 256-Tap Volatile, SPI, Low-Voltage Linear
Taper Digital Potentiometer
Typical Operating Characteristics (continued)