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Part: TDF8704-4
Category:
Data Conversion
Description: TDF8704; 8-bit High-speed Analog-to-digital Converter;; Package: SOT137 (SO24)
Company: Philips Semiconductors
Datasheet: Download TDF8704-4 datasheet File size : 455 kB
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Datasheet text preview:
INTEGRATED CIRCUITS
DATA SHEET
TDF8704 8-bit high-speed analog-to-digital converter
Product specification Supersedes data of April 1993 File under Integrated Circuits, IC02 June 1994
Philips Semiconductors
Philips Semiconductors
Product specification
8-bit high-speed analog-to-digital converter
FEATURES · 8-bit resolution · Sampling rate up to 50 MHz · Extended temperature range (-40 to +85 °C) · High signal-to-noise ratio over a large analog input frequency range (7.4 effective bits at 4.43 MHz full-scale input and at fclk = 50 MHz) · Binary 3-state TTL outputs · Overflow/underflow 3-state TTL output · TTL compatible digital inputs · Low-level AC clock input signal allowed · Stable internal reference voltage regulator included · Power dissipation only 380 mW (typical) · Low analog input capacitance, no buffer amplifier required · No sample-and-hold circuit required. QUICK REFERENCE DATA SYMBOL VCCA VCCD VCCO ICCA ICCD ICCO ILE DLE AILE fclk(max) Ptot Note 1. Full-scale sine wave (fi = 4.43 MHz; fclk = 50 MHz). ORDERING INFORMATION PACKAGE TYPE NUMBER PINS TDF8704T/2 TDF8704T/4 TDF8704T/5 June 1994 24 24 24 PIN POSITION SO24L SO24L SO24L 2 MATERIAL plastic plastic plastic CODE SOT137-1 SOT137-1 SOT137-1 PARAMETER analog supply voltage digital supply voltage output stages supply voltage analog supply current digital supply current output stages supply current DC integral linear error DC differential linearity error AC integral linearity error maximum clock frequency total power dissipation note 1 CONDITIONS MIN. 4.75 4.75 4.75 - - - - - - 50 - TYP. 5.0 5.0 5.0 37 23 16 ±0.4 ±0.2 - - 380 APPLICATIONS
TDF8704
· General purpose high-speed analog-to-digital conversion for extended temperature applications · Automotive · RF, satellite and GPS (Global Positioning System) · Medical · General industrial · Digital video (VCR, TV and satellite). GENERAL DESCRIPTION The TDF8704T is an 8-bit high-speed analog-to-digital converter (ADC) for general industrial applications. It converts the analog input signal into 8-bit binary-coded digital words at a maximum sampling rate of 50 MHz. All digital inputs and outputs are TTL compatible, although a low-level AC clock input signal is allowed.
MAX. 5.25 5.25 5.25 46 35 21 ±1 ±0.5 ±2 - 535 V V V
UNIT
mA mA mA LSB LSB LSB MHz mW
SAMPLING FREQUENCY 20 MHz 40 MHz 50 MHz
Philips Semiconductors
Product specification
8-bit high-speed analog-to-digital converter
BLOCK DIAGRAM
TDF8704
handbook, full pagewidth
V CCA 7
CLK 16
VCCD 18
CE 22
STABILIZER
CLOCK DRIVER
DEC 5
VRT 9
TDF8704
12 D7 13 D6 14 D5 MSB
analog voltage input
VI 8
15 D4 ANALOG - TO - DIGITAL CONVERTER LATCHES TTL OUTPUTS 23 D3 24 D2 1 D1 2 D0 LSB V data outputs
VRB 4
19 21
CCO1 VCCO2 overflow / underflow output
OGND 20 output ground 6 AGND analog ground 17 DGND
OVERFLOW / UNDERFLOW LATCH
TTL OUTPUT
11
MSA685
digital ground
Fig.1 Block diagram.
June 1994
3
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