ADD8505WRUZ-REEL Analog Devices Inc, ADD8505WRUZ-REEL Datasheet - Page 7

• Manufacturer Part Number: ADD8505WRUZ-REEL
• Description: IC,TV/VIDEO CIRCUIT,LCD Video Circuit,CMOS,TSSOP,20PIN,PLASTIC
• Manufacturer: Analog Devices Inc

Specifications of ADD8505WRUZ-REEL

• Applications: TFT-LCD Panels: Gamma Buffer
• Output Type: Rail-to-Rail
• Number Of Circuits: 5
• Slew Rate: 7 V/µs
• Current - Supply: 3mA
• Current - Output / Channel: 380mA
• Voltage - Supply, Single/dual (±): 3.3 V ~ 6.5 V
• Mounting Type: Surface Mount
• Package / Case: 20-TSSOP (0.173", 4.40mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

APPLICATIONS
The ADD8504/ADD8505/ADD8506 have CMOS buffers with
A/B inputs to select between two different reference voltages set
up by an external resistor ladder. Input bias currents are orders
of magnitude less than competitive parts. This allows the use of
a very large resistor ladder to save supply current.
The buffer outputs are designed to drive resistive or capacitive
loads. Therefore, to attain the best display performance, do not
use resistors in series with these outputs. Outputs have high
slew rates and 6 μs settling times. Each output delivers a mini-
mum of 120 mA, ensuring a fast response to varying loads.
NOTES
1. RAx RESISTORS ARE USED TO SET POSITIVE INVERSION GAMMA VOLTAGES.
2. RBx RESISTORS ARE USED TO SET NEGATIVE INVERSION GAMMA VOLTAGES.
0.1μF
RA1
RA2
RA3
RA4
RA5
RA6
RA7
5V
RB1
RB2
RB3
RB4
RB5
RB6
RB7
5V
0.1μF
Figure 12. ADD8506 Typical Application
10
10
10
11
12
1
2
3
4
5
6
7
8
9
Rev. C | Page 7 of 12
(INVERTING SIGNAL)
24
23
22
21
20
19
18
17
16
15
14
13
Power supply pins on the ADD8505 and ADD8506 have
multiple ground (GND) and supply (VCC) connections.
Because of the high peak currents that these buffers deliver, it
is recommended that all GND and VCC pins be connected and
suitably bypassed.
Table 6. Mux Function
A/B Select
Logic High
Logic Low
VCOM
0.1μF
5V
ADD8504/ADD8505/ADD8506
TO COLUMN
DRIVERS
Input
INAx
INBx