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TDA8706 Datasheet, PDF (6/16 Pages) NXP Semiconductors – 6-bit analog-to-digital converter with multiplexer and clamp
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Philips Semiconductors
6-bit analog-to-digital converter with
multiplexer and clamp
Preliminary specification
TDA8706
CHARACTERISTICS (see Tables 1 and 2)
VCCA = 4.5 to 5.5 V; VCCD = 4.5 to 5.5 V = VCCD; Tamb = 0 to +70 °C; CVRB = CVR1 = 100 nF; Typical values measured
at VCCA = VCCD = 5 V and Tamb = 25 °C; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
Supply
VCCA
VCCD
ICCA
ICCD
Inputs
analog supply voltage (pin 2)
digital supply voltage (pin 10)
analog supply current (pin 2)
digital supply current (pin 10)
4.5 5.0 5.5 V
4.5 5.0 5.5 V
−
32 39 mA
all outputs at LOW level −
28 37 mA
CLOCK INPUT (PIN 13)
VIL
LOW level input voltage
VIH
HIGH level input voltage
IIL
LOW level input current
IIH
HIGH level input current
ZI
input impedance
Ci
input capacitance
VCLK = 0.4 V
VCLK = 2.7 V
fCLK = 20 MHz
fCLK = 20 MHz
A, B, C, CLAMP AND CEN INPUTS (PINS 8, 9, 10, 12 AND 14)
VIL
LOW level input voltage
VIH
HIGH level input voltage
IIL
LOW level input current
IIH
HIGH level input current
VCLK = 0.4 V
VCLK = 2.7 V
Reference voltage (pins 3 and 4)
VRT
reference voltage TOP decoupling
VRB
reference voltage BOTTOM decoupling
VRT − VRB reference voltage TOP − BOTTOM decoupling
Analog inputs INA, INB, INC (pins 7, 6 and 5)
VI(p-p)
ZI
Cclamp
input voltage amplitude (peak-to-peak value)
input impedance
coupling clamp capacitance
fi = 4.43 MHz
Analog signal processing (pins 5, 6 and 7) (fCLK = 20 MHz)
f1
fall
Gdiff
φdiff
SVRR
fundamental harmonics (full scale)
harmonics (full scale); all components
differential gain
differential phase
supply voltage ripple rejection
fi = 4.43 MHz
fi = 4.43 MHz
note 1
note 1
note 2
0
−
2.0 −
−400 −
−
−
−
4
−
2
0
−
2
−
−400 −
−
−
0.8 V
VCCD V
−
µA
100 µA
−
kΩ
−
pF
0.8 V
VCCD V
−
µA
20 µA
3.22 3.35 3.44 V
1.84 1.9 1.96 V
1.36 1.435 1.48 V
840 900 940 mV
100 −
−
kΩ
1
10 1000 nF
−
−
0
dB
−
−45 −
dB
−
0.4 −
%
−
1.0 −
deg
−
−30 −
dB
1996 Aug 20
6
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