TDA8705A Datasheet, PDF (6/16 Pages) NXP Semiconductors – 6-bit high-speed dual Analog-to-Digital Converter ADC

Philips Semiconductors
6-bit high-speed dual Analog-to-Digital
Converter (ADC)
Product specification
TDA8705A
CHARACTERISTICS
V_CCA = V₈ to V₇ = 4.75 to 5.25 V; V_CCD = V₂ to V₃ = 4.75 to 5.25 V; V_CCO = V₂₁ to V₂₂ = 4.75 to 5.25 V; AGND, OGND
and DGND shorted together; V_CCA to V_CCD = −0.25 to +0.25 V; V_CCO to V_CCD = −0.25 to +0.25 V;
V_CCA to V_CCO = −0.25 to +0.25 V; T_amb = 0 to +70 °C; typical values measured at V_CCA = V_CCD = V_CCO = 5 V and
T_amb = 25 °C; C_L = 15 pF; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
Supply
V_CCA
V_CCD
V_CCO
I_CCA
I_CCD
I_CCO
Inputs
analog supply voltage
digital supply voltage
output stages supply voltage
analog supply current
digital supply current
output stages supply current
4.75 5.0
4.75 5.0
4.75 5.0
20
27
10
14
10
14
5.25 V
5.25 V
5.25 V
32
mA
18
mA
18
mA
CLOCK INPUT CLK; REFERENCED TO DGND; note 1
V_IL
LOW level input voltage
V_IH
HIGH level input voltage
I_IL
LOW level input current
I_IH
HIGH level input current
Z_I
input impedance
C_I
input capacitance
V_clk = 0.4 V
V_clk = 2.7 V
f_clk = 80 MHz
f_clk = 80 MHz
V_I ANALOG INPUT VOLTAGE FOR A AND B; REFERENCED TO AGND
R_I
DC parallel input resistance
C_I
parallel input capacitance
f_i = 20 MHz
α_CT
crosstalk between V_IA and V_IB
f_i = 20 MHz
Reference voltages for the resistor ladder (A and B); see Table 1
V_RB
V_RT
V_diff
I_ref
R_LAD
TC_RLAD
V_osB
V_osT
V_i(p-p)
reference voltage BOTTOM
reference voltage TOP
differential reference voltage V_RT − V_RB
reference current
resistor ladder
temperature coefficient of the resistor ladder
offset voltage BOTTOM
offset voltage TOP
input voltage amplitude (peak-to-peak value)
note 2
note 2
Outputs (A and B)
0
−
2.0 −
−1
−
−
−
−
2
−
2
0.8 V
V_CCD V
+1
µA
20
µA
−
kΩ
−
pF
20
−
−
kΩ
−
1.5 −
pF
40
−
−
dB
1.9 2.0 2.1 V
2.8 2.9 3.0 V
0.85 0.90 0.95 V
−
2
−
mA
−
450 −
Ω
−
3280 −
ppm
−
200 −
mV
−
200 −
mV
0.45 0.50 0.55 V
DIGITAL OUTPUTS D5 TO D0 (REFERENCED TO DGND)
V_OL
LOW level output voltage
V_OH
HIGH level output voltage
I_O = 1 mA
I_O = −1 mA
0
−
2.4 −
0.4 V
V_CCD V
1996 Jan 12
6