BUF12840_15 Datasheet, PDF (3/31 Pages) Texas Instruments – Programmable Gamma-Voltage Generator

BUF12840
www.ti.com
SBOS519A – OCTOBER 2010 – REVISED JULY 2011
ELECTRICAL CHARACTERISTICS
Boldface limits apply over the specified temperature range, T_A = –40°C to +95°C.
At T_A = +25°C, V_S = +18V, and V_SD = +5V, unless otherwise noted.
PARAMETER
ANALOG GAMMA BUFFER CHANNELS
Reset value
OUT1 to OUT12 output swing: high
OUT1 to OUT12 output swing: low
OUT1 to OUT12 output swing: high
OUT1 to OUT12 output swing: low
Continuous output current
Output accuracy
vs Temperature
Integral nonlinearity
INL
Differential nonlinearity
DNL
Load regulation, 10mA
REG
ANALOG POWER SUPPLY
Operating range
Total analog supply current
I_S
Over temperature
DIGITAL INPUT/OUTPUT⁽²⁾
Logic 1 input voltage
V_IH
Logic 0 input voltage
V_IL
Logic 0 output voltage
V_OL
Input leakage
Clock frequency
f_CLK
EEPROM read clock speed
BANK switching delay
DIGITAL POWER SUPPLY
Operating range
Digital supply current⁽¹⁾
Over temperature
Power-on reset
TEMPERATURE RANGE
Specified range
Operating range
Storage range
V_SD
I_SD
POR
CONDITIONS
Code 0
Code = 1023, sourcing 10mA
Code = 0, sinking 10mA
Code = 1023, sourcing 5mA
Code = 0, sinking 5mA
See note ⁽¹⁾
Code 512
Code 512
V_OUT = GND + 0.3V to V_S – 0.3V
V_OUT = GND + 0.3V to V_S – 0.3V
Code 512 or V_CC/2, I_OUT = +5mA to –5mA step
Outputs at midscale with no load
I_SINK = 3mA
Standard/Fast mode
High-Speed mode
Master mode
LD pin = 0, V_OUT = 50% of code 1023
Two-Wire bus inactive
Junction temperature < +125°C
BUF12840
MIN
TYP
MAX
UNIT
0
V
17.7
17.85
V
0.07
0.3
V
17.8
17.9
V
0.07
0.2
V
30
mA
±20
±50
mV
±25
μV/°C
0.3
Bits
0.3
Bits
0.5
1.5
mV/mA
9
20
V
6.5
10
mA
19
mA
0.7 × V_SD
71
0.15
±0.01
87
7
0.3 × V_SD
0.4
±10
400
3.4
100
10
V
V
V
μA
kHz
MHz
kHz
μs
2.0
5.5
V
90
150
μA
115
175
μA
1.1
1.5
1.7
V
–40
+95
°C
–40
+95
°C
–65
+150
°C
(1) Observe maximum power dissipation. Exposed thermal die is soldered to the PCB using thermal vias. Refer to Texas Instruments
application report QFN/SON PCB Attachment (SLUS271).
(2) Refers to pins EA0, EA1, EN, LD, SCL, SDA, A0, and BKSEL.
Copyright © 2010–2011, Texas Instruments Incorporated
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