TDA8792 Просмотр технического описания (PDF) - Philips Electronics
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TDA8792 Datasheet PDF : 20 Pages
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Philips Semiconductors
3.3 V, 25 MHz 8-bit
analog-to-digital converter (ADC)
Product specification
TDA8792
CHARACTERISTICS
VDDA = V6 to V4,12 = 2.85 to 3.6 V; VDDD = V2 to V3 and V1 = 2.7 to 3.6 V; VDDO = V22 to V23 = 2.5 to 3.6 V;
VSSA, VSSD and VSSO shorted together; VDDA to VDDD = −0.15 to +0.15 V; fclk = 25 MHz; 50% duty factor; VIL = 0 V;
VIH = VDDD; CL = 15 pF; Tamb = 0 to +70 °C; typical values measured at VDDA = VDDD = VDDO = 3.3 V and Tamb = 25 °C;
unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP. MAX. UNIT
Supply
VDDA
VDDD
VDDO
IDDA
IDDD
IDDO
Inputs
analog supply voltage
digital supply voltage
output stages supply voltage
analog supply current
digital supply current
output stages supply current
2.85
2.7
2.5
−
−
CL = 15 pF; ramp input −
3.3 3.6 V
3.3 3.6 V
3.3 3.6 V
12
20
mA
3
6
mA
1
2
mA
CLOCK INPUT CLK (REFERENCED TO VSSD); note 1
VIL
LOW level input voltage
VIH
HIGH level input voltage
IIL
LOW level input current
IIH
HIGH level input current
CI
input capacitance
Vclk = 0.4 V
Vclk = 2.7 V
INPUTS OE AND STDBY (REFERENCED TO VSSD); see Tables 2 and 3
VIL
LOW level input voltage
VIH
HIGH level input voltage
IIL
LOW level input current
IIH
HIGH level input current
VIL = 0.4 V
VIH = 2.7 V
VI (ANALOG INPUT VOLTAGE REFERENCED TO VSSA)
IIL
LOW level input current
IIH
HIGH level input current
ZI
input impedance
CI
input capacitance
VI = 0 V
VI = 1.5 V
fi = 4.43 MHz
fi = 4.43 MHz
Reference voltages for the resistor ladder; see Table 1
VRB
VRT
Vdiff
Iref
RLAD
TCRLAD
reference voltage BOTTOM
reference voltage TOP
differential reference voltage VRT − VRB
reference current
resistor ladder
temperature coefficient of the resistor
ladder
0
−
0.8 V
2.0
−
VDDD V
−10
−
−
µA
−
−
10
µA
−
10
−
pF
0
−
0.8 V
2.0
−
VDDD V
−10
−
−
µA
−
−
+10 µA
−20
−
−
µA
−
−
+20 µA
−
35
−
kΩ
−
5
−
pF
0
−
0.15 V
1.4
−
1.6 V
1.25
1.5 1.6 V
−
1.3 −
mA
−
1250 −
Ω
−
1
−
Ω/K
1996 Feb 21
6
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