TDA8768A Datasheet, PDF (7/32 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 6: Characteristics…continued
V_CCA = V₂ to V₄₄, V₃ to V₄ and V₄₁ to V₄₀ = 4.75 to 5.25 V; V_CCD = V₃₇ to V₃₈ and V₁₅ to V₁₇ = 4.75 to 5.25 V;
V_CCO = V₃₃ to V₃₄ = 3.0 to 3.6 V; AGND and DGND shorted together; T_amb = −40 to 85 °C; V_I(p-p) − V_I(p-p) = 1.9 V;
V_ref = V_CCA3−1.75 V; V_I(CM) = V_CCA3−1.6V; typical values measured at V_CCA = V_CCD = 5 V and V_CCO = 3.3 V, T_amb = 25 °C
and C_L = 10 pF; unless otherwise specified.
Symbol
Parameter
Conditions
Test ^[1] Min Typ
Max Unit
CLK and CLK (referenced to DGND)^[2]
V_IL
LOW-level input voltage
PECL mode; V_CCD = 5 V
I
3.19 -
3.52 V
TTL mode
C
0
-
0.8 V
V_IH
HIGH-level input voltage
PECL mode; V_CCD = 5 V
I
TTL mode
C
I_IL
LOW-level input current
V_CLK or V_CLK = 3.19 V
C
I_IH
HIGH-level input current
V_CLK or V_CLK = 3.83 V
C
∆V_CLK(p-p)
differential AC input voltage
for switching
(V_CLK(p-p) − V_CLK(p-p))
AC driving mode; DC voltage C
level = 2.5 V
R_i
input resistance
f_CLK = 55 MHz
D
C_i
input capacitance
f_CLK = 55 MHz
D
OTC, SH and CE (referenced to DGND); see Tables 7 and 8
3.83 -
2.0 -
−10 -
-
-
1
1.5
2
-
-
-
4.12 V
V_CCD V
-
µA
10 µA
2.0 V
-
kΩ
2
pF
V_IL
LOW-level input voltage
I
V_IH
HIGH-level input voltage
I
I_IL
LOW-level input current
V_IL = 0.8 V
I
I_IH
HIGH-level input current
V_IH = 2.0 V
I
V_I and V_I (referenced to AGND); see Table 7, V_ref = V_CCA3 − 1.75 V
I_IL
LOW-level input current
SH = HIGH
C
I_IH
HIGH-level input current
SH = HIGH
C
R_i
input resistance
f_i = 20 MHz
D
C_i
input capacitance
f_i = 20 MHz
D
V_I(CM)
common mode input voltage V_I = V_I; output code 2047 C
0
-
2.0 -
−20 -
-
-
0.8 V
V_CCD V
-
µA
20 µA
-
10
-
µA
-
10
-
µA
-
14
-
MΩ
-
450
-
fF
V_CCA3 V_CCA3 − 1.6 V_CCA3 V
− 1.7
− 1.2
Voltage controlled regulator output CMADC
V_o(CM)
common mode output voltage
I
I_L
load current
I
Voltage input V_ref ^[3]
V_ref
full-scale fixed voltage
f_i = 20 MHz; f_CLK = 55 Msps C
-
V_CCA3 − 1.6 -
V
-
1
2
mA
-
V_CCA3
-
V
− 1.75
I_ref
input current at V_ref
C
-
0.3
10 µA
V_I(p-p) − V_I(p-p) input voltage amplitude
V_ref = V_CCA3 − 1.75 V
C
-
1.9
(peak-to-peak value)
V_I(CM) = V_CCA3 − 1.6 V
-
V
Voltage controlled regulator output FS_ref
V_o(ref)
1.9 V full-scale output voltage
I
-
V_CCA3
-
V
− 1.75
Outputs (referenced to OGND)
Digital outputs D11 to D0 and IR (referenced to OGND)
V_OL
LOW-level output voltage
I_OL = 2 mA
I
0
-
0.5 V
9397 750 09656
Product data
Rev. 02 — 03 July 2002
© Koninklijke Philips Electronics N.V. 2002. All rights reserved.
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