TLC5510, TLC5510A
8-BIT HIGH-SPEED ANALOG-TO-DIGITAL CONVERTERS
SLAS095L – SEPTEMBER 1994 – REVISED JUNE 2003
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
Terminal Functions
TERMINAL
NAME NO.
AGND 20, 21 Analog ground
ANALOG IN 19 I Analog input
CLK 12 I Clock input
DGND 2, 24 Digital ground
D1–D8 3–10 O Digital data out. D1 = LSB, D8 = MSB
OE 1 I Output enable. When OE = low, data is enabled. When OE = high, D1–D8 is in high-impedance state.
V
DDA
14, 15, 18 Analog supply voltage
V
DDD
11, 13 Digital supply voltage
REFB 23 I Reference voltage in bottom
REFBS 22 Reference voltage in bottom. When using the TLC5510 internal voltage divider to generate a nominal 2-V
reference, REFBS is shorted to REFB (see Figure 3). When using the TLC5510A, REFBS is connected to
ground.
REFT 17 I Reference voltage in top
REFTS 16 Reference voltage in top. When using the TLC5510 internal voltage divider to generate a nominal 2-V
reference, REFTS is shorted to REFT (see Figure 3). When using the TLC5510A, REFTS is connected to
V
DDA
.
absolute maximum ratings
†
Supply voltage, V
DDA
, V
DDD
7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reference voltage input range, V
REFT
, V
REFB
AGND to V
DDA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Analog input voltage range, V
I(ANLG)
AGND to V
DDA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Digital input voltage range, V
I(DGTL)
DGND to V
DDD
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Digital output voltage range, V
O(DGTL)
DGND to V
DDD
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, T
A
–20°C to 75°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
–55°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
recommended operating conditions
MIN NOM MAX UNIT
V
DDA
–AGND 4.75 5 5.25
Supply voltage
V
DDD
–AGND 4.75 5 5.25
AGND–DGND –100 0 100 mV
Reference input voltage (top), V
ref(T)
‡
TLC5510A V
REFB
+2 4 V
Reference input voltage (bottom), V
ref(B)
‡
TLC5510A 0 V
REFT
–4 V
Analog input voltage range, V
I(ANLG)
V
REFB
V
REFT
V
High-level input voltage, V
IH
4 V
Low-level input voltage, V
IL
1 V
Pulse duration, clock high, t
w(H)
(see Figure 1) 25 ns
Pulse duration, clock low, t
w(L)
(see Figure 1) 25 ns
‡
The reference voltage levels for the TLC5510 are derived through an internal resistor divider between V
DDA
and ground and therefore are not
derived from a separate external voltage source (see the electrical characteristics and text). For the 4 V input range of the TLC5510A, the
reference voltage is externally applied across the center divider resistor.
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