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TDA8768 Datasheet, PDF (7/20 Pages) NXP Semiconductors – 12-bit high-speed Analog-to-Digital Converter ADC
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Philips Semiconductors
12-bit high-speed Analog-to-Digital
Converter (ADC)
Preliminary specification
TDA8768
CHARACTERISTICS
VCCA = V2 to V44, V9 to V10, V3 to V4 and V41 to V40 = 4.75 to 5.25 V; VCCD = V37 to V38 and V15 to V17 = 4.75 to 5.25 V;
VCCO = V33 to V34 = 3.0 to 5.25 V; AGND and DGND shorted together; Tamb = 0 to 70 °C; typical values measured at
VCCA = VCCD = 5 V and VCCO = 3.3 V, Tamb = 25 °C, VI(p-p) − VI(p-p) = 2.0 V and CL = 10 pF; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP. MAX. UNIT
Supply
VCCA
VCCD
VCCO
ICCA
ICCD
ICCO
Inputs
analog supply voltage
digital supply voltage
output supply voltage
analog supply current
digital supply current
output supply current
4.75
4.75
3.0
−
−
fCLK = 4 MHz; fi = 400 kHz −
fCLK = 40 MHz; fi = 4.43 MHz −
5.0 5.25
V
5.0 5.25
V
3.3 5.25
V
33 45
mA
30 37
mA
3.2 tbf
mA
11 tbf
mA
CLK AND CLK (REFERENCED TO DGND)
VIL
VIH
IIL
IIH
Zi
Ci
∆VCLK(p-p)
LOW-level input voltage
HIGH-level input voltage
LOW-level input current
HIGH-level input current
input impedance
input capacitance
differential AC input voltage
(peak-to-peak value) for
switching (VCLK − VCLK)
VCCD = 5 V; note 1
VCCD = 5 V; note 1
VCLK or VCLK = 3.19 V
VCLK or VCLK = 3.83 V
fCLK = 40 MHz
fCLK = 40 MHz
DC voltage level = 2.5 V
OTC, SH AND CE (REFERENCED TO DGND); see Tables 1 and 2
VIL
LOW-level input voltage
VIH
HIGH-level input voltage
IIL
LOW-level input current
VIL = 0.8 V
IIH
HIGH-level input current
VIH = 2.0 V
VI AND VI (REFERENCED TO AGND); VREF = VCCA − 1.825 V; see Table 1
IIL
IIH
Ri
Ci
VI(CM)
LOW-level input current
HIGH-level input current
input resistance
input capacitance
common mode input voltage
fi = 4.43 MHz
fi = 4.43 MHz
VI = VI; output code 2047
VCCA = 5 V
VCCA = 4.75 V
VCCA = 5.25 V
3.19
3.83
−10
−
2
−
0.5
0
2.0
−20
−
−
−
100
−
tbf
tbf
tbf
−
3.52
V
−
4.12
V
−
−
µA
−
10
µA
−
−
kΩ
−
2
pF
−
2.0
V
−
0.8
V
−
VCCD
V
−
−
µA
−
+20
µA
10 −
µA
10 −
µA
−
−
kΩ
−
2
pF
3.6 tbf
V
3.35 tbf
V
3.85 tbf
V
1998 Aug 26
7
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