TL5501 6-BIT ANALOG-TO-DIGITAL CONVERTER SLAS026 – OCTOBER 1989 – REVISED APRIL 1990 D D D D D D D D D N PACKAGE (TOP VIEW) 6-Bit Resolution Linearity Error . . . ± 0.8% Maximum Conversion Rate . . . 30 MHz Typ Analog Input Voltage Range VCC to VCC – 2 V Analog Input Dynamic Range . . . 1 V TTL Digital I/O Level Low Power Consumption 200 mW Typ 5-V Single-Supply Operation Interchangeable With Fujitsu MB40576 (LSB) D0 D1 D2 D3 D4 (MSB) D5 CLK GND 1 16 2 15 3 14 4 13 5 12 6 11 7 10 8 9 GND DGTL VCC ANLG VCC REFB ANLG INPUT REFT ANLG VCC DGTL VCC description The TL5501 is a low-power ultra-high-speed video-band analog-to-digital converter that uses the Advanced Low-Power Schottky (ALS) process. It utilizes the full-parallel comparison (flash method) for high-speed conversion. It converts wide-band analog signals (such as a video signal) to a digital signal at a sampling rate of dc to 30 MHz. Because of this high-speed capability, the TL5501 is suitable for digital video applications such as digital TV, video processing with a computer, or radar signal processing. The TL5501 is characterized for operation from 0°C to 70°C. functional block diagram CLK ANLG INPUT REFT R 1 EN D5 (MSB) D4 R 2 D3 63-to-6 Encoder Latch and Buffer D2 R 62 D1 R D0 (LSB) 63 R REFB 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. Copyright 1990, Texas Instruments Incorporated 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. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1 TL5501 6-BIT ANALOG-TO-DIGITAL CONVERTER SLAS026 – OCTOBER 1989 – REVISED APRIL 1990 equivalents of analog input circuit ANLG VCC ANLG VCC D VI VI Ibias Ci (see Note A) ANLG GND NOTE A: Ci – nonlinear emitter-follower junction capacitance ri – linear resistance model for input current transition caused by comparator switching. VI < VrefB: Infinite; CLK high: infinite. VrefB – voltage at REFB terminal Ibias – constant input bias current D – base-collector junction diode of emitter-follower transistor equivalent of digital input circuit DGTL VCC 25 kΩ 3.1 kΩ 25 kΩ Output Vref = 1.4 V VI GND 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 ri VrefB TL5501 6-BIT ANALOG-TO-DIGITAL CONVERTER SLAS026 – OCTOBER 1989 – REVISED APRIL 1990 FUNCTION TABLE STEP ANALOG INPUT VOLTAGE 0 3.992 V L L L 1 4.008 V L L L | | 31 4.488 V L H 32 4.508 V H L 33 4.520 V H DIGITAL OUTPUT CODE L L L L L H H H H H L L L L L L L L H | | | 62 4.984 V H H H | H H L 63 5.000 V H H H H H H † These values are based on the assumption that VrefB and Vref T have been adjusted so that the voltage at the transition from digital 0 to 1 (VZT) is 4.000 V and the transition to full scale (VFT) is 4.992 V. 1 LSB = 16 mV. absolute maximum ratings over operating free-air temperature range (unless otherwise noted) Supply voltage range, ANLG VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to 7 V Supply voltage range, DGTL VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to 7 V Input voltage range at digital input, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to 7 V Input voltage range at analog input, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to ANLG VCC + 0.5 V Analog reference voltage range, Vref . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to ANLG VCC + 0.5 V Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 55°C to 150°C Operating free-air temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C NOTE 1: All voltage values are with respect to the network ground terminal. recommended operating conditions MIN NOM MAX UNIT Supply voltage, ANLG VCC 4.75 5 5.25 V Supply voltage, DGTL VCC 4.75 5 5.25 V High-level input voltage, VIH 2 V Low-level input voltage, VIL 0.8 V Input voltage at analog input, VI (see Note 2) 4 5 V Analog reference voltage (top side), VrefT (see Note 2) 4 5 5.1 V Analog reference voltage (bottom side), VrefB (see Note 2) 3 4 4.1 V High-level output current, IOH µA – 400 Low-level output current, IOL Clock pulse duration, high-level or low-level, tw 4 mA 70 °C 25 Operating free-air temperature, TA 0 ns NOTE 2: VrefB < VI < Vref T, Vref T – VrefB = 1 V ± 0.1 V. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3 TL5501 6-BIT ANALOG-TO-DIGITAL CONVERTER SLAS026 – OCTOBER 1989 – REVISED APRIL 1990 electrical characteristics over operating supply voltage range, TA = 25°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP VI = 5 V VI = 4 V MAX UNIT 75 µA II Analog input current IIH IIL Digital high-level input current II IrefB Digital input current Iref T VOH Reference current High-level output voltage VIrefB = 5 V IOH = – 400 µA VOL ri Low-level output voltage IOL = 1.6 mA 1Ci ICC Analog input capacitance 35 65 pF Supply current 40 60 mA 73 VI = 2.7 V VI = 0.4 V Digital low-level input current 0 – 400 VI = 7 V VIrefB = 4 V Reference current Analog input resistance µA 20 µA – 40 100 µA –4 – 7.2 mA 4 7.2 mA 2.7 V 0.4 V 100 kΩ operating characteristics over operating supply voltage range, TA = 25°C (unless otherwise noted) PARAMETER EL fmax TEST CONDITIONS MIN TYP† Linearity error Maximum converstion rate 20 td Digital output delay time † All typical values are at VCC = 5 V, Vref = 4 V, TA = 25°C. See Figure 3 MAX UNIT ± 0.8 %FSR 30 15 MHz 30 timing diagram twH CLK Sample N twL Sample Sample N+1 N+2 1.4 V ANLG INPUT td D1 – D6 4 Data N–1 Data N POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 Data N+1 ns TL5501 6-BIT ANALOG-TO-DIGITAL CONVERTER SLAS026 – OCTOBER 1989 – REVISED APRIL 1990 TYPICAL CHARACTERISTICS IDEAL CONVERSION CHARACTERISTICS 63 111111 See Note A 62 Digital Output CodeS S111101 VFS VFT = VFS 1/2 LSB 100001 61 33 32 100000 VZT VZS + 1/2 LSB 011111 Step 111110 31 VZS 4.984 4.992 V 5.000 4.968 4.520 0 4.504 000000 4.488 1 4.024 000001 4.008 2 3.992 000010 VI — Analog Input Voltage — V NOTE A: This curve is based on the assumption that VrefB and Vref T have been adjusted so that the voltage at the transition from digital 0 to 1 (VZT) is 4.000 V and the transition to full scale (VFT) is 4.992 V. 1 LSB = 16 mV. Figure 1 END-POINT LINEARITY ERROR 111111 63 111110 62 EL61 100001 61 33 EL33 100000 EL32 011111 EL31 000010 32 Step Digital Output Code 111101 31 2 EL2 000001 1 EL1 000000 0 VI — Analog Input Voltage — V Figure 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 5 TL5501 6-BIT ANALOG-TO-DIGITAL CONVERTER SLAS026 – OCTOBER 1989 – REVISED APRIL 1990 PARAMETER MEASUREMENT INFORMATION Measurement Point ÏÏÏ VCC RL = 2 kΩ To Digital Output CL = 15 pF Figure 3. Load Circuit 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 IMPORTANT NOTICE Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement, and limitation of liability. TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily performed, except those mandated by government requirements. CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL APPLICATIONS”). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER CRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE FULLY AT THE CUSTOMER’S RISK. In order to minimize risks associated with the customer’s applications, adequate design and operating safeguards must be provided by the customer to minimize inherent or procedural hazards. TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property right of TI covering or relating to any combination, machine, or process in which such semiconductor products or services might be or are used. TI’s publication of information regarding any third party’s products or services does not constitute TI’s approval, warranty or endorsement thereof. Copyright 1998, Texas Instruments Incorporated