CAT522WI-T2 ON Semiconductor, CAT522WI-T2 Datasheet - Page 10

• Manufacturer Part Number: CAT522WI-T2
• Description: Digital Potentiometer ICs DPP,NV,256 taps Dual 3 wire,w/Buf
• Manufacturer: ON Semiconductor

Specifications of CAT522WI-T2

• Number Of Pots: Dual
• Taps Per Pot: 256
• Resistance: 24 KOhms
• Wiper Memory: Non Volatile
• Digital Interface: Serial (3-Wire, Microwire)
• Operating Supply Voltage: 3.3 V, 5 V
• Supply Current: 600 uA
• Mounting Style: SMD/SMT
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.7 V
• Package / Case: SOIC-14
• Number Of Elements: 2
• # Of Taps: 256
• Power Supply Requirement: Single
• Single Supply Voltage (typ): 3.3/5V
• Dual Supply Voltage (typ): Not RequiredV
• Single Supply Voltage (min): 2.7V
• Single Supply Voltage (max): 5.5V
• Dual Supply Voltage (min): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 14
• Package Type: SOIC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

CAT522
R
Fine adjust gives ±1 LSB change in V
when V
Doc. No. MD-2004 Rev. I
C
=
Coarse-Fine Offset Control by Averaging DPP
256 x 1µA
Outputs for Single Power Supply Systems
V
OFFSET
COARSE ADJUST
REF
FINE ADJUST
+5V
CAT522
GND
V
CONTROL
& DATA
DD
DPP
DPP
= V
REF
V
REF
/2
V
V
REFH
REFL
+5V
127R
CAT522
GND
R
V
OFFSET
DD
C
DPP1
DPP2
2.2kΩ
C
V
OFFSET
Current Sink with 4 Decades of Resolution
V
V
REFH
REFL
+
–
4.7µF
+5V
+V
5MΩ
10kΩ
10kΩ
10
LM385-2.5
+
–
+
–
+15V
COARSE ADJUST
+5V
FINE ADJUST
Coarse-Fine Offset Control by Averaging DPP
GND
V
CAT522
DD
10kΩ
5MΩ
Outputs for Dual Power Supply Systems
DPP
DPP
Not Recommended for New Design
+V
V
V
REF
REFH
REFL
-V
2N7000
2N7000
–
+
REF
39Ω 1W
39Ω 1W
127R
3.9kΩ
10kΩ
R
R
C
0
-15V
C
Characteristics subject to change without notice
V
I
OFFSET
SINK
R
R
TIP30
C
0
=
© 2008 SCILLC. All rights reserved.
=
= 2 - 255mA
(-V
(+V
REF
+
–
REF
1mA steps
5µA steps
) + (V
) - (V
+V
-V
1µA
1µA
OFFSET
OFFSET
+
+
)
)