THS7353 Datasheet, PDF (4/51 Pages) Texas Instruments – 3-Channel Low Power Video Buffer with I2C Control, Selectable Filters, External Gain Control, 2:1 Input MUX, and Selectable Input Modes

THS7353
SLOS484 – NOVEMBER 2005
www.ti.com
ELECTRICAL CHARACTERISTICS, V_S+ = 3.3 V (continued)
R_L = 150 Ω to GND, Filter Select = 9 MHz, Input Bias = dc, Gain Adjust pin shorted to the output pin (unless otherwise noted)
PARAMETER
TEST CONDITIONS
TYP
25°C
25°C
OVERTEMPERATURE
0°C to 70°C
–40°C to
85°C
UNITS
MIN/MAX
Filter Select = 9 MHz, 480i source
83
dB
Signal to noise ratio (unified _{Filter Select = 16 MHz, 480p source}
81
dB
weighting per CCIR 576-2
recommendation)
Filter Select = 35 MHz, 720p source
78
dB
Filter Select = Bypass⁽²⁾, 720p source
66
dB
Filter Select = 9 MHz: at 1 MHz
–70
dB
Channel-to-Channel
Filter Select = 16 MHz: at 1 MHz
–73
dB
Crosstalk (V_O = 1 V_PP)
Filter Select = 35 MHz: at 1 MHz
–78
dB
Filter Select = Bypass: at 1 MHz
–84
dB
Filter Select = 9 MHz: at 5.1 MHz
75
dB
Filter Select = 16 MHz: at 11 MHz
74
dB
MUX Isolation
Filter Select = 35 MHz: at 27 MHz
74
dB
Filter Select = Bypass: at 60 MHz
75
dB
Output impedance
f = 10 MHz
0.8
Ω
DC PERFORMANCE
Output offset voltage
Bias = dc
20
70
80
85
mV
Max
Average offset voltage drift Bias = dc
20
µV/°C
Bias output voltage
Bias = dc + 250 mV, V_I = 0 V
Bias = ac
250
230/270
210/290
200/300
mV
Min/Max
1.05
0.9/1.2
0.85/1.25
0.85/1.25
V
Min/Max
Sync tip clamp voltage
Bias = ac STC, clamp voltage
250
190/310
180/320
175/325
mV
Min/Max
Input bias current
Bias = dc - implies Ib out of the pin
–0.6
–4
–5
–5
µA
Max
Average bias current drift Bias = dc
10
nA/°C
Bias = ac STC, low bias
1.6
0.6/3.3
0.5/3.5
0.4/3.6
µA
Min/Max
Sync tip clamp bias current Bias = ac STC, mid bias
5.8
4.3/8.2
4.1/8.4
4/8.5
µA
Min/Max
Bias = ac STC, high bias
7.4
6.2/10.8
6/11
5.9/11.1
µA
Min/Max
INPUT CHARACTERISTICS
Input voltage range
Bias = dc - ensured by output
0/2.1
0/1.8
0/1.7
0/1.6
V
Min/Max
Bias = ac bias mode
21
kΩ
Input resistance
Bias = dc, dc + 250 mV, ac STC
3
MΩ
Input capacitance
2
pF
OUTPUT CHARACTERISTICS
High output voltage swing
(limited by input voltage with
gain = 0 dB)
Low output voltage swing
Output current
R_L = 150 Ω to Midrail
R_L = 150 Ω to GND
R_L = 75 Ω to Midrail
R_L = 75 Ω to GND
R_L = 150 Ω to Midrail
R_L = 150 Ω to GND
R_L = 75 Ω to Midrail
R_L = 75 Ω to GND
R_L = 10 Ω to GND, sourcing
R_L = 10 Ω to Midrail, sinking
2.1
2.1
1.8
1.7
2.1
2.1
0.14
0.24
0.27
0.09
0.17
0.2
0.24
0.33
0.36
0.09
0.17
0.2
70
70
45
42
V
1.6
V
Min
V
V
0.28
V
Max
0.21
V
Max
0.37
V
Max
0.21
V
Max
mA
40
mA
Min
(2) Bandwidth up to 100-MHz, No Weighting, Tilt Null
4