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TLC5510, TLC5510A

8-BIT HIGH-SPEED ANALOG-TO-DIGITAL CONVERTERS

SLAS095L – SEPTEMBER 1994 – REVISED JUNE 2003

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

features

Analog Input Range

– TLC5510 ...2 V Full Scale

– TLC5510A ...4 V Full Scale

8-Bit Resolution

Integral Linearity Error

±0.75 LSB Max (25°C)

±1 LSB Max (–20°C to 75°C)

Differential Linearity Error

±0.5 LSB Max (25°C)

±0.75 LSB Max (–20°C to 75°C)

Maximum Conversion Rate

20 Mega-Samples per Second

(MSPS) Max

5-V Single-Supply Operation

Low Power Consumption

TLC5510 . . . 127.5 mW Typ

TLC5510A . . . 150 mW Typ

(includes reference resistor dissipation)

TLC5510 is Interchangeable With Sony

CXD1175

applications

Digital TV

Medical Imaging

Video Conferencing

High-Speed Data Conversion

QAM Demodulators

description

The TLC5510 and TLC5510A are CMOS, 8-bit, 20

MSPS analog-to-digital converters (ADCs) that

utilize a semiflash architecture. The TLC5510 and

TLC5510A operate with a single 5-V supply and

typically consume only 130 mW of power.

Included is an internal sample-and-hold circuit,

parallel outputs with high-impedance mode, and

internal reference resistors.

The semiflash architecture reduces power

consumption and die size compared to flash

converters. By implementing the conversion in a

2-step process, the number of comparators is

significantly reduced. The latency of the data

output valid is 2.5 clocks.

The TLC5510 uses the three internal reference

resistors to create a standard, 2-V, full-scale

conversion range using V

DDA

. Only external jumpers are required to implement this option and eliminates the

need for external reference resistors. The TLC5510A uses only the center internal resistor section with an

externally applied 4-V reference such that a 4-V input signal can be used. Differential linearity is 0.5 LSB at 25°C

and a maximum of 0.75 LSB over the full operating temperature range. Typical dynamic specifications include

a differential gain of 1% and differential phase of 0.7 degrees.

The TLC5510 and TLC5510A are characterized for operation from –20°C to 75°C.

AVAILABLE OPTIONS

PACKAGE

MAXIMUM FULL SCALE

TSSOP (PW)

SOP (NS)

(TAPE AND REEL ONLY)

MAXIMUM

FULL

SCALE

INPUT VOLTAGE

20°Cto75°C

TLC5510IPW TLC5510INSLE 2 V

–

20°C

75°C

– TLC5510AINSLE 4 V

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

DGND

D1(LSB)

D8(MSB)

DDD

CLK

DGND

REFB

REFBS

AGND

ANALOG IN

DDA

REFT

REFTS

DDA

DDD

PW OR NS PACKAGE

†

(TOP VIEW)

†

Available in tape and reel only and ordered

as the shown in the Available Options table

below.

TLC5510, TLC5510A

8-BIT HIGH-SPEED ANALOG-TO-DIGITAL CONVERTERS

SLAS095L – SEPTEMBER 1994 – REVISED JUNE 2003

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

Terminal Functions

TERMINAL

I/O

DESCRIPTION

NAME NO.

I/O

DESCRIPTION

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.

DDA

14, 15, 18 Analog supply voltage

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

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

–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

DDA

–AGND 4.75 5 5.25

Supply voltage

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)

REFB

REFT

High-level input voltage, V

4 V

Low-level input voltage, V

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.

TLC5510, TLC5510A

8-BIT HIGH-SPEED ANALOG-TO-DIGITAL CONVERTERS

SLAS095L – SEPTEMBER 1994 – REVISED JUNE 2003

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

electrical characteristics at V

= 5 V, V

REFT

= 2.5 V, V

REFB

= 0.5 V, f

(CLK)

= 20 MHz, T

= 25°C (unless

otherwise noted)

digital I/O

PARAMETER TEST CONDITIONS

†

MIN TYP MAX UNIT

High-level input current V

= MAX, V

= V

µA

Low-level input current V

= MAX, V

= 0 5

High-level output current OE = GND, V

= MIN, V

= V

–0.5 V –1.5

Low-level output current OE = GND, V

= MIN, V

= 0.4 V 2.5

OZH

High-level high-impedance-state

output leakage current

OE = V

, V

= MAX V

= V

µA

OZL

Low-level high-impedance-state

output leakage current

OE = V

, V

= MIN V

= 0 16

†

Conditions marked MIN or MAX are as stated in recommended operating conditions.

power

PARAMETER TEST CONDITIONS

†

MIN TYP MAX UNIT

Supply current

(CLK)

= 20 MHz, National Television System Committee (NTSC)

ramp wave input, reference resistor dissipation is separate

18 27 mA

Reference voltage current

TLC5510 V

ref

= REFT – REFB = 2 V 5.2 7.5 10.5 mA

ref

Reference

voltage

current

TLC5510A V

ref

= REFT – REFB = 4 V 10.4 15 21 mA

†

Conditions marked MIN or MAX are as stated in recommended operating conditions.

static performance

PARAMETER TEST CONDITIONS

†

MIN TYP MAX UNIT

Self-bias (1), at REFB

Short REFB to REFBS

Short REFT to REFTS

0.57 0.61 0.65

Self-bias (2), REFT – REFB

Short

REFB

REFBS

Short

REFT

REFTS

1.9 2.02 2.15

Self-bias (3), at REFT Short REFB to AGND, Short REFT to REFTS 2.18 2.29 2.4

ref

Reference voltage resistor Between REFT and REFB 190 270 350 Ω

Analog input capacitance V

I(ANLG)

= 1.5 V + 0.07 V

rms

16 pF

TLC5510

(CLK)

= 20 MHz,

= 25°C ±0.4 ±0.75

Integral nonlinearity (INL)

TLC5510

(CLK)

= 0.5 V to 2.5 V

= –20°C to 75°C ±1

Integral

nonlinearity

(INL)

TLC5510A

(CLK)

= 20 MHz,

= 25°C ±0.4 ±0.75

TLC5510A

(CLK)

= 0 to 4 V

= –20°C to 75°C ±1

LSB

TLC5510

(CLK)

= 20 MHz,

= 25°C ±0.3 ±0.5

LSB

Differential nonlinearity (DNL)

TLC5510

(CLK)

= 0.5 V to 2.5 V

= –20°C to 75°C ±0.75

Differential

nonlinearity

(DNL)

TLC5510A

(CLK)

= 20 MHz,

= 25°C ±0.3 ±0.5

TLC5510A

(CLK)

= 0 to 4 V

= –20°C to 75°C ±0.75

Zero scale error

TLC5510 V

ref

= REFT – REFB = 2 V –18 –43 –68 mV

Zero

scale

error

TLC5510A V

ref

= REFT – REFB = 4 V –36 –86 –136 mV

Full-scale error

TLC5510 V

ref

= REFT – REFB = 2 V –20 0 20 mV

Full

scale

error

TLC5510A V

ref

= REFT – REFB = 4 V –40 0 40 mV

†

Conditions marked MIN or MAX are as stated in recommended operating conditions.

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