AD5200 AD | Alldatasheet
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True 12-Bit Operation: +1/2LSB max Nonlinearity Totally Adjustment-Free Guaranteed No Missing Codes Over the Specified Temperature Range Hermetically-Sealed Package Standard Temperature Range: -25°C to +85°C. Extended Temperature Range: -55°C to +125°C Serial and Parallel Outputs Monolithic DAC with Scaling Resistors for Stability \\ Low Chip Count for High Reliability oon, ree LT Industry Standard Pin Out fs | PACS Small 24-Pin DIP te: GENERAL DESCRIPTION . | PRODUCT HIGHLIGHTS The ADS52XxX series devices are 12-bit successive approximation 1. The ADS2XX series devices are laser trimmed at the factory wick tne monolith chips and ectve nen vneaine of to provide a rotally adjusoment free converter—no potenti- . ometers are required for 12-bit performance. high-stability thin-film resistors to provide a totally adjustment 94 1 onolithic : 2-bit feedback DAC is used for reduced chip free converter—no potentiometers are required for calibration. . . “ ‘ crone F wired for ea count and higher reliability ye with significant increases in performance. count and higher reliability. The exceptional temperature be debinee atfen trae 12 hit arena ead eghibits no coefficients of the monolithic DAC guarantees +1/2LSB line- * aissing cod h acy arty over the entire operating temperature range of -25°C missing codes over the entire operating temperature range. to +85°C for the BD grade and -55°C to +125°C for the 5. The fast conversion rate of the AD5210 series makes it an TD grade. excellent choice for applications requiring high system throughput rates. ‘The ADS2XX series converters are available in 2 input voltage spp ranges: £5V (AD521X1/AD52X4) and £10V (AD52X2/ AD52X5). The converters are available either complete with an internal buried zener reference or with the option of an external reference for improved absolute accuracy. The AD52XxX series converters are available in two per- formance grades; the “B” is specified from -25°C to +85°C and the “T” is specified from -55°C to +125°C. All units are available in a 24-pin hermetically sealed ceramic DIP. Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices . . 7 parties which may result from its use. No license is granted by implica. Tel: 617/329-4700 Twx: 710/394-6577 tion or otherwise under any patent or patent rights of Analog Devices. Telex: 924491 Cables: ANALOG NORWOODMASS.
SPECIFICATIONS (typical @ +25°C, +15V and +5V unless otherwise noted) INPUT INPUT RANGE! IMPEDANCE -5V to +5V 5.0k2 AD52X1B ADS52X1T AD52X4B ADS2X4T -10Vto+10V_———10.0k2_— ADS2X2B ____ ADS2x2T ADS52X5B ADS2X5T REFERENCE 0000000000 Antermal i one nelizgtermal =10,000V 0 FF RESOLUTION 02 Bits ut ‘ * LINEARITY ERROR, MAX +1/2LSB . . * No Missing Codes Tin t0 Tmax Guaranteed . * * ZERO ERROR, MAX +1LSB Cn ZERO ERROR, MAX Trin tO Tax +2LSB . ’ * "ABSOLUTE ACCURACY, MAX -#2LSB ~ oO ABSOLUTE ACCURACY, MAX Tmin to Tmax +0.4% of FSR? . £0.1% of FSR? tae CONVERSION TIME, MAX Clock = 1MHz (5210 Series) 13ys . . . Clock = 260kHz (5200 Series) 50us . . . LOGIC RATINGS Input Logic Commands Logic “0” 0.8V max * * . Logic “1” +2.0V min * . . Loading O.STTL Load * * * CLOCK INPUT PULSE WIDTH 100ns min * * * OUTPUT LOGIC Logic “0” 0.4V max . . * Logic “1” 3.6V (2.4 min) . + * BANOUT — HIGH ener LOS eee re 2 + FANOUT - LOW _ 2TTL Loads . * . POWER SUPPLY REQUIREMENTS Viocic +5V £10% . * + OPERATING CURRENT 7 VLOGIC 25mA (68mA max) * . * Voc 10mA (35mA max) * * . Vpp 20mA (28mA max) * * * POWER SUPPLY REJECTION Voc +0.005%/% max . . * a MB 0005 1% MAK a Fe POWER CONSUMPTION —__ 575mW(1000mW max) oe 575mW (1000mW max)eee OPERATING TEMPERATURE RANGE -25°C to +85°C -55°C to +125°C * aad NOTES *Same specifications as ADS2X1/X2B. Same specifications as AD52X1/X2T. *Same specifications as AD52X4/X5B. 1 Other input ranges are available, consult factory. ? FSR is Full Scale Range and is equal to the peak to peak input signal. Specifications subject to change without notice. ~2-
Figure 1. Burn In Circuit Figure 2. Pin Designations ‘**Insert number according to desired input voltage range as shown in Table 11.
and to the corresponding bit inputs of the feedback DAC. tinues until the Bit 12 (LSB) decision (keep) is made at ty2. decision to keep or reject each bit is then made at the com- valid. sion (F.O.C.) signal will be set simultaneously with the initia- 50us conversion time. Figure 3. Timing Diagram The analog continuum is partitioned into 2'? discrete ranges internally trimmed to provide an absolute accuracy of £0.05%. converters are combinations of analog errors due to the linear _—-Si2€ (Figure 4). scaling network. The initial gain and offset errors have been on the data page.
B. The desired accuracy and corresponding resolution of internal user-controllable analog switch that connects the the converter. multiplexers in either a single-ended or differential mode. This The resolution of an ADS210 is 1 part in 4096 to a tolerance allows a single device to perform in either mode without hard- of 0.012% of the full scale range, the maximum value of input__WF€ programming and permits a mixture of single-ended and signal frequency which can be digitized is determined by: differential sources to be interfaced by dynamically switching the input mode control. Fax! = Ne Dc POWER MAX! ~ (2m)(Aperture Uncertainty) mM I 5 1 Fmax/AD346 = am (4096) (4X 10- (4096) 4X 10-10) = 97.1kHz wouD pata > 1 CAPACITOR BITS Fax /ADSHC-85 = —————__- = 77.7kHz v » rary (2m) (4096) (5 X 10710) ANeurs. -) WwaLoG ANALOG ‘18! ours ANN The maximum throughput rate for each of these combinations status oureuT is again different. The maximum throughput rate is the sum ] of the sample and hold acquisition time and A/D conversion {> time as shown in Figure 9. our eetiocx SOUL Sa GATCH Sraar” (TOOUTPUT ee convent be "cow. — Figure 10. High Speed 12-Bit DAS coc. _[CONvERSON GF —L___[ CONVERSION F-—L_ ‘SAMPLE 1 ACQUISTION SAMPLE 2 sath CONVERT START USING A POSITIVE EDGE €.0.C. CONNECTED TO SAMPLE AND HOLD MODE CONTROL In some systems it may be inconvenient to generate a negative ; _ going start convert pulse of the proper width. The circuit of see . START/E.O.C. Timing for Sampled Data Figure 11 can be used to start a conversion on the ADS21X series of A/Ds with a positive going edge. To perform a con- When using an AD346 with an AD5212 the throughput version both the convert start signal and the E.O.C. must be rate is, 2.0us acquisition time plus 134s conversion time, low. The output of the inverter and nand gate will then be in 66.6kHz. The ADSHC-85 used in combination with an the high state. The converter will reset on the next rising 18.3kHz. To meet the requirements of the Nyquist sampling inverter goes low; the convert start is still high so the output criteria, the AD346 and ADS210 combination can be used of the nand gate goes high allowing the conversion to continue for input frequencies from de through 33.3kHz; the ADSHC- immediately. The convert start line has only to be brought 85 and AD5210 combination for inputs from de through back down before the conversion is complete. 9.2kHz. Input frequencies higher than these (up to the maxi- mum frequency) would result in ‘“‘under-sampling” of the sional © Db: 1 input signal. Signals up to the maximum frequency could be processed if their bandwidth is less than one-half the sample <J frequency. SUL ek cock A fast (32kHz) 12-bit DAS can be configured using the AD362 con and the AD521X. The AD362 contains two 8-channel multi- plexers, a differential amplifier, a sample-and-hold with high- ee a speed output amplifier, a channel address latch and control SN logic. The multiplexers may be connected to the differential seta! ———_ amplifier in either an 8-channel differential or 16-channel single-ended configuration. A feature of the AD362 is an Figure 11. Convert Start Using a Positive Edge a Internal , External Input Range Speed Reference | Reference -5V to +5V Sous ADS201 AD5204 13ys AD5S211 AD5214 -10V to +10V | SOus = ADS202. = ADS205 13us | ADS212 AD5215 ive., — the 13ps conversion time, +10V input, external reference, extended temperature unit is the AD5215TD. Table 1. ~6-