TDA8762 Datasheet, PDF (17/24 Pages) NXP Semiconductors – 10-bit high-speed low-power analog-to-digital converter

Philips Semiconductors
10-bit high-speed low-power
analog-to-digital converter
Product specification
TDA8762
APPLICATION INFORMATION
Additional application information will be supplied upon request (please quote number “AN96025”).
handbook, halfpage
CLK ₁
TC ₂
VCCA ₃
AGND1 ₄
AGND2 ₅
(1) _{VRB 6}
100 nF
(3)(1) _{VRM 7}
AGND
100 nF
(4) _{V I 8}
AGND
(1) _{VRT 9}
100 nF
AGND
OE ₁₀
VCCD ₁₁
DGND ₁₂
VCCO1 ₁₃
OGND1 ₁₄
28 ^VCCO2
27 ^OGND2
26 ^IR
25 ^D9
24 ^D8
23 ^D7
TDA8762
22 ^D6
21 ^D5
20 ^D4
19 ^D3
18 ^D2
17 ^D1
16 ^D0
15 ^n.c.(2)
MGC043
The analog and digital supplies should be separated and decoupled.
The external voltage reference generator must be built such that a good supply voltage ripple rejection is achieved with respect to the LSB value.
Eventually, the reference ladder voltages can be derived from a well regulated V_CCA supply through a resistor bridge and a decoupled capacitor.
(1) V_RB, V_RM and V_RT are decoupled to AGND.
(2) Pin 15 should be connected to DGND in order to prevent noise influence.
(3) When V_RM is not used, pin 7 can be left open, avoiding the decoupling capacitor. In any case, this pin must not be grounded.
(4) When analog input signal is AC coupled, an input bias or a clamping level must be applied to V_I input (pin 8).
Fig.15 Application diagram.
1996 Mar 28
17