BUF16821-Q1 Datasheet, PDF (6/38 Pages) Texas Instruments – Programmable Gamma-Voltage Generator

BUF16821-Q1
SBOS712 – MAY 2014
www.ti.com
6.5 Electrical Characteristics
At T_A = 25°C, V_S = 18 V, V_SD = 2 V, R_L = 1.5 kΩ connected to ground, and C_L = 200 pF, unless otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX
ANALOG GAMMA BUFFER CHANNELS
Reset value
Code 512
9
OUT 1–16 output swing: high
OUT 1–16 output swing: low
VCOM1, 2 output swing: high
VCOM1, 2 output swing: low
Continuous output current⁽¹⁾
Code = 1023, sourcing 10 mA, T_A = –40°C to 85°C
Code = 0, sinking 10 mA, T_A = –40°C to 85°C
Code = 1023, sourcing 100 mA, T_A = –40°C to 85°C
Code = 0, sinking 100 mA, T_A = –40°C to 85°C
17.7
17.85
0.07
0.3
13
16.2
0.6
2
30
Output accuracy
±20
±50
Output accuracy over temperature Code 512, T_A = –40°C to 85°C
±25
INL
Integral nonlinearity
0.3
DNL
Differential nonlinearity
0.3
ΔV_O(ΔIO) Load regulation, 10 mA
OTP MEMORY
Code 512 or V_CC / 2, I_OUT = 5-mA to –5-mA step
0.5
1.5
Number of OTP write cycles
16
Memory retention
100
ANALOG POWER SUPPLY
Operating range
9
20
I_CC(tot)
DIGITAL
Total analog supply current
I_CC(tot) over temperature
Outputs at reset values, no load
T_A = –40°C to 85°C
12
14
18
V_IH
Logic 1 high input voltage
V_IL
Logic 0 low input voltage
V_OL
Logic 0 low output voltage
Input leakage
I_SINK = 3 mA
0.7 × V_SD
0.15
±0.01
0.3 × V_SD
0.4
±10
f_CLK
Clock frequency
Standard, fast mode, T_A = –40°C to 85°C
High-speed mode, T_A = –40°C to 85°C
400
2.7
DIGITAL POWER SUPPLY
DVDD
Digital power supply (VSD pin)
I_SD
Digital supply current⁽¹⁾
I_SD over temperature
TEMPERATURE RANGE
Outputs at reset values, no load, two-wire bus inactive
T_A = –40°C to 85°C
2.0
5.5
115
150
115
Specified range
–40
85
Operating range
Junction temperature < 125°C
–40
95
Storage range
–65
150
R_θJA
Thermal resistance,
HTSSOP-28 ^{(1) (2)}
40
UNIT
V
V
V
V
V
mA
mV
μV/°C
LSB
LSB
mV/mA
Cycles
Years
V
mA
mA
V
V
V
μA
kHz
MHz
V
μA
μA
°C
°C
°C
°C/W
(1) Observe maximum power dissipation.
(2) Thermal pad is attached to the printed circuit board (PCB), 0-lfm airflow, and 76-mm × 76-mm copper area.
6
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