BUF12800 Datasheet, PDF (3/20 Pages) Burr-Brown (TI) – REFERENCE VOLTAGE GENERATOR for LCD GAMMA CORRECTION

BUF12800
www.ti.com
SBOS315 − DECEMBER 2004
ELECTRICAL CHARACTERISTICS
Boldface limits apply over the specified temperature range, T_A = −40°C to +85°C.
At TA = +25°C, VS = 18V, VSD = 5V, VREFH = 17V, VREFL = 1V, RL = 1.5kΩ connected to ground, and CL = 200pF, unless otherwise noted.
BUF12800
PARAMETER
ANALOG
Buffer Output Swing—High
Buffer Output Swing—Low
Buffer Output Reset and Power-Up Value
Buffer A
Buffer B
Buffer C
Buffer D
Buffer E
Buffer F
CONDITIONS
MIN
Buffers A-F, Code = 1023, Sourcing 10mA, VREFH = 17.8
Buffers G-L, Code = 1023, Sourcing 10mA, VREFH = 17.8
Buffers A-F, Code = 0, Sinking 10mA, VREFL = 0.2
Buffers G-L, Code = 0, Sinking 10mA, VREFL = 0.2
Code 3E0h (11 1110 0000)
Code 360h (11 0110 0000)
Code 320h (11 0010 0000)
Code 300h (11 0000 0000)
Code 2C0h (10 1100 0000)
Code 240h (10 0100 0000)
17.7
16.3
16.452
14.450
13.450
12.952
11.952
9.950
TYP
17.8
16.98
1.0
0.2
16.502
14.500
13.500
13.002
12.002
10.000
MAX
1.1
0.3
16.552
14.550
13.550
13.052
12.052
10.050
UNIT
V
V
V
V
V
V
V
V
V
V
Buffer G
Buffer H
Buffer I
Buffer J
Buffer K
Buffer L
Code 1C0h (01 1100 0000)
Code 140h (01 0100 0000)
Code 100h (01 0000 0000)
Code 0E0h (00 1110 0000)
Code 0A0h (00 1010 0000)
Code 020h (00 0010 0000)
7.955
8.005
8.055
V
5.958
6.008
6.058
V
4.957
5.007
5.057
V
4.459
4.509
4.559
V
3.457
3.507
3.557
V
1.457
1.507
1.557
V
REFH Input Range
4
REFL Input Range
0.2
Integral Nonlinearity
INL
Differential Nonlinearity
DNL
Gain Error
Program to Out Delay
tD
Output Accuracy
vs Temperature
Input Resistance at VREFH and VREFL
Load Regulation, 10mA, All Buffers
50mA, Buffers A-F
RINH
REG
VREFH and VREFL Held Constant
VOUT = VS/2, IOUT = +5mA to −5mA Step
VOUT = VS/2, ISINKING = 50mA, ISOURCING = 50mA
ANALOG POWER SUPPLY
Operating Voltage Range
VS
7
Total Analog Supply Current
IS
Outputs at Reset Values, No Load
over Temperature
VS − 0.2
V
VS − 4
V
0.3
Bits
0.3
Bits
0.12
%
5
µs
±20
±50
mV
±25
µV/°C
100
MΩ
0.5
1.5
mV/mA
0.5
1.5
mV/mA
18
V
9
15
mA
15
mA
DIGITAL
Logic 1 Input Voltage
Logic 0 Input Voltage
Logic 0 Output Voltage
Input Leakage
Clock Frequency
fCLK
ISINK = 3mA
Standard/Fast Mode
High-Speed Mode
0.7(VSD)
0.15
±0.01
0.3(VSD)
0.4
±10
400
3.4
V
V
V
µA
kHz
MHz
DIGITAL POWER SUPPLY
Operating Voltage Range
Digital Supply Current(1)
over Temperature
VSD
2.7
5.5
V
ISD Outputs at Reset Values, No-Load, Two-Wire Bus Inactive
25
50
µA
100
µA
TEMPERATURE RANGE
Specified Range
Operating Range
Junction Temperature < 125°C
Storage Range
Thermal Resistance, TSSOP-24(2)
Junction-to-Ambient
q_JA
Junction-to-Case
q_JC
(1) _{See the typical characteristic Digital Supply Current vs Two-Wire Bus Activity.}
(2) _{PowerPAD attached to PCB, 0lfm airflow, and 76mm x 76mm copper area.}
−40
+85
°C
−40
+95
°C
−65
+150
°C
30.13
0.92
°C/W
°C/W
3