TDA8790 Ver la hoja de datos (PDF) - Philips Electronics
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TDA8790 Datasheet PDF : 20 Pages
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Philips Semiconductors
8-bit, 40 Msps 2.7 to 5.5 V universal
analog-to-digital converter
Product specification
TDA8790
CHARACTERISTICS
VDDA = V5 to V6 = 3.3 V; VDDD = V3 to V4 = 3.3 V; VDDO = V20 to V11 = 3.3 V; VSSA, VSSD and VSSO shorted together;
Vi(p-p) = 1.84 V; CL = 20 pF; Tamb = 0 to +70 °C; typical values measured at Tamb = 25 °C; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP. MAX. UNIT
Supply
VDDA
VDDD
VDDO
∆VDD
IDDA
IDDD
IDDO
analog supply voltage
digital supply voltage
output stages supply voltage
supply voltage difference
VDDA − VDDD
VDDD − VDDO
analog supply current
digital supply current
output stages supply current
Inputs
2.7
2.7
2.5
−0.2
−0.2
−
−
fclk = 40 MHz; ramp input; −
CL = 20 pF
3.3 5.5
V
3.3 5.5
V
3.3 5.5
V
−
+0.2
V
−
+2.25 V
4
6
mA
5
8
mA
1
2
mA
CLOCK INPUT CLK (REFERENCED TO VSSD); see note 1
VIL
LOW level input voltage
VIH
HIGH level input voltage
VDDD ≤ 3.6 V
IIL
LOW level input current
Vclk = 0.3VDDD
IIH
HIGH level input current
Vclk = 0.7VDDD
ZI
input impedance
fclk = 40 MHz
CI
input capacitance
fclk = 40 MHz
INPUT SLEEP (REFERENCED TO VSSD); see Table 2
VIL
LOW level input voltage
VIH
HIGH level input voltage
VDDD ≤ 3.6 V
IIL
LOW level input current
IIH
HIGH level input current
VIL = 0.3VDDD
VIH = 0.7VDDD
VI (ANALOG INPUT VOLTAGE REFERENCED TO VSSA)
IIL
LOW level input current
VI = VRB
IIH
HIGH level input current
VI = VRT
ZI
input impedance
fi = 1 MHz
CI
input capacitance
fi = 1 MHz
Reference voltages for the resistor ladder; see Table 1
VRB
reference voltage BOTTOM
VRT
reference voltage TOP
Vdiff
differential reference voltage
VRT − VRB
Iref
reference current
VTOP ≤ VDDA
0
−
0.7VDDD −
0.6VDDD −
−1
0
−
−
−
4
−
3
0.3VDDD V
VDDD
V
VDDD
V
+1
µA
5
µA
−
kΩ
−
pF
0
−
0.7VDDD −
0.6VDDD −
−1
−
−
−
0.3VDDD V
VDDD
V
VDDD
V
−
µA
+1
µA
−
0
−
µA
−
9
−
µA
−
20
−
kΩ
−
2
−
pF
1.1
1.2 −
V
2.7
3.3
VDDA
V
1.5
2.1 2.7
V
−
0.95 −
mA
1996 Feb 21
6
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