English
Language : 

TDA8768A Datasheet, PDF (6/32 Pages) NXP Semiconductors – 12-bit, 70 Msps Analog-to-Digital Converter (ADC)
Philips Semiconductors
TDA8768A
12-bit, 70 Msps Analog-to-Digital Converter (ADC)
Table 4: Limiting values…continued
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol Parameter
Conditions
Min
Max
∆VCC
VI, VI
supply voltage difference
VCCA − VCCD
VCCD − VCCO
VCCA − VCCO
input voltage at
pins 42 and 43
referenced to
AGND
−1.0
−1.0
−1.0
0.3
+1.0
+4.0
+4.0
VCCA
VCLK(p-p)
input voltage at pins
35 and 36 for differential
clock drive (peak-to-peak
value)
-
VCCD
IO
Tstg
Tamb
Tj
output current
storage temperature
ambient temperature
junction temperature
-
10
−55
+150
−40
+85
-
150
Unit
V
V
V
V
V
mA
°C
°C
°C
[1] The supply voltages VCCA, VCCD and VCCO may have any value between −0.3 V and +7.0 V provided
that the supply voltage differences ∆VCC are respected.
9. Thermal characteristics
Table 5:
Symbol
Rth(j-a)
Thermal characteristics
Parameter
thermal resistance from junction to
ambient
Condition
in free air
Value Unit
75
K/W
10. Characteristics
Table 6: Characteristics
VCCA = V2 to V44, 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 3.6 V; AGND and DGND shorted together; Tamb = −40 to 85 °C; VI(p-p) − VI(p-p) = 1.9 V;
Vref = VCCA3−1.75 V; VI(CM) = VCCA3−1.6V; typical values measured at VCCA = VCCD = 5 V and VCCO = 3.3 V, Tamb = 25 °C
and CL = 10 pF; unless otherwise specified.
Symbol
Parameter
Conditions
Test [1] Min Typ
Max Unit
Supplies
VCCA
VCCD
VCCO
ICCA
ICCD
ICCO
analog supply voltage
digital supply voltage
output supply voltage
analog supply current
digital supply current
output supply current
Inputs
I
I
fCLK = 20 MHz; fi = 400 kHz I
fCLK = 40 MHz; fi = 4.43 MHz C
fCLK = 55 MHz; fi = 20 MHz I
4.75 5.0
4.75 5.0
3.0 3.3
-
78
-
27
-
3
-
6.2
-
9.5
5.25 V
5.25 V
3.6 V
87 mA
30 mA
4
mA
9
mA
12 mA
9397 750 09656
Product data
Rev. 02 — 03 July 2002
© Koninklijke Philips Electronics N.V. 2002. All rights reserved.
6 of 32