ADC-228AMM

ADC-228A MURATA-PS | Alldatasheet

Document overview

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Technical content

Ḥ Figure 1. Functional Block Diagram

13 NO CONNECTION

20 NO CONNECTION

14 BIT 1 (MSB)

15 BIT 2

16 BIT 3

17 BIT 4

21 BIT 5

22 BIT 6

23 BIT 7

24 BIT 8 (LSB)

FEATURES

■ 8-Bit fl ash A/D converter ■ 20MHz sampling rate ■ Complete support circuitry ■ Low power, 900mW ■ Sample-hold not required ■ Three-state outputs ■ MIL-STD-883 versions PRODUCT OVERVIEW The ADC-228A combines analog front-end circuitry and a fl ash A/D converter to digitize high-speed analog signals at a rate of 20 million samples per second. The ADC-228A contains an 8-bit, 20MHz, fl ash A/D, a wideband analog input buffer, a precision voltage reference, temperature compensation circuitry, reference trims, and a three-state output buffer in a 24-pin package. The ADC-228A offers signifi cant savings by combining all of the circuitry in a single package. Valuable board real estate is saved, and design time and manufacturing costs are reduced. The ADC-228A is housed in a 24-pin ceramic DDIP package and is available in the commercial, 0 to +70°C, or military, –55 to +125°C, tem- perature ranges. A MIL-STD-883 version is also available. Operation is from ±15V and +5V power supplies. INPUT/OUTPUT CONNECTIONS Pin FUNCTION Pin FUNCTION 1 +5V SUPPL Y 24 BIT 8 (LSB)

2 GROUND 23 BIT 7

3 +5V REFERENCE OUT 22 BIT 6

4 GROUND 21 BIT 5

5 ANALOG INPUT 20 NO CONNECTION

6 GROUND 19 +15V SUPPL Y

7 GROUND 18 CLOCK INPUT

8 NO CONNECTION 17 BIT 4

9 NO CONNECTION 16 BIT 3

10 –15V SUPPL Y 15 BIT 2

11 CS1 14 BIT 1 (MSB)

12 CS2 13 NO CONNECTION

8-Bit, 20MHz, Complete Flash A/D Converter MDA_ADC-228A.B01 Page 1 of 4 For full details go to www.murata-ps.com/rohs www.murata-ps.com www.murata-ps.com Technical enquiries email: data.acquisition@murata-ps.com, tel: +1 508 339 3000

Power Supply Voltage, Pin 1 –0.3 to +7V Pin 19 –0.3 to +18V Pin 10 +0.3 to –18V Digital Inputs, Pins 8,9,11,12,18 –0.5 to +5.5V Analog Input, Pin 5 –3.8 to +6.6V Digital Outputs –0.5 to +5.5V (short circuit protected to ground) Lead Temp. (10 seconds) +300°C FUNCTIONAL SPECIFICATIONS (Apply over the operating temperature range with 20MHz clock and ±15V and +5V power supply voltages, unless otherwise specifi ed.) ANALOG INPUTS MIN. TYP . MAX. UNITS Single-Ended, Non-Isolated Input Range, dc-20MHz 0 — +5.0 Volts Input Resistance 1.95 2 — k Ω Input Capacitance — 5 10 pF DIGITAL INPUTS Logic Levels Logic 1 +2.0 — — Volts Logic 0 — — +0.8 Volts Logic Loading Logic 1 — — +160 µA Logic 0 — — –0.5 mA Clock Pulse Widths "High" 20 — — ns "Low" 20 — — ns DIGITAL OUTPUTS Coding Resolution Logic Levels Logic 1 +2.4 — — Volts Logic 0 — — +0.4 Volts Logic Loading Logic 1 — — –1 mA Logic 0 — — +1 mA Output Data Valid Delay From Rising Edge — — 40 ns Output Hold Time 6 — — ns PERFORMANCE Sampling Rate ➀ 20 — — MHz Differential Linearity Code Transitions, Integral Linearity, +25°C End-point — ±0.5 ±1 LSB Best-fi t Line — ±0.35 ±0.75 LSB Over Temperature End-point — — ±1.75 LSB Best-fi t Line — — ±1 LSB Zero-Scale Offset Code "0" to "1" Transition PERFORMANCE MIN. TYP . MAX. UNITS Gain error — ±0.5 ±1.5 LSB Full Scale Absolute Accuracy — ±0.5 ±1.5 LSB Differential Gain ➁ — 2 — % Differential Phase ➁ — 1 — deg. Aperture Delay — 8 — ns Aperture Jitter — 50 — ps No Missing Codes Power Supply Rejection DYNAMIC PERFORMANCE Total Harm. Distortion, –0.5dB DC to 2.5 MHz — –55 –53 dB

2.5 MHz to 5 MHz — –49 –44 dB

5 MHz to 10 MHz — –39 –36 dB

and Distortion, –0.5dB DC to 2.5 MHz 44 49 — dB

2.5 MHz to 5 MHz 41 46 — dB

5 MHz to 10 MHz 35 38 — dB

w/o Distortion, –0.5 dB DC to 2.5 MHz 45 48 — dB

2.5 MHz to 5 MHz 44 49 — dB

5 MHz to 10 MHz 42 45 — dB

Effective Bits, –0.5dB DC to 2.5 MHz 7.1 7.75 — Bits 2.5 MHz to 5 MHz 6.8 7.4 — Bits 5 MHz to 10 MHz 5.6 6.1 — Bits Input Bandwidth Large Signal (–3dB) 15 — — MHz Small Signal (–20dB) 40 — — MHz POWER SUPPLY Power Supply Range +15V Supply +11 +15 +15.75 Volts –15V Supply –11 –15 –15.75 Volts +5V Supply +4.75 +5 +5.25 Volts Power Supply Current +15V Supply — +12 +20 mA –15V Supply — –13 –20 mA +5V Supply — +70 +80 mA Power Dissipation ±15V, +5V Nominal — 0.7 0.9 Watts PHYSICAL/ENVIRONMENTAL Operating Temp. Range, Case ADC-228AMC 0 to +70°C ADC-228AMM, ADC-228A/883 –55 to +125°C Storage Temp. Range –65 to +150°C Package Type 24-pin, ceramic DDIP Weight 0.3 ounces (8.5 grams) Footnotes: ➀ At full power input and chip selects enabled. ➁ For 10-step, 40 IRE NTSC ramp test. Over the operating temperature range ±0.02% FSR/%V S maximum Straight Binary

8 Bits

8-Bit, 20MHz, Complete Flash A/D Converter MDA_ADC-228A.B01 Page 2 of 4 Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000www.murata-ps.com

0.200 MAX. (5.080) 0.235 MAX. (5.969) 0.600 ±0.010 (15.240) 0.80 MAX. (20.32) 0.100 TYP. (2.540) 0.100 (2.540) 0.018 ±0.002 (0.457) 0.100 (2.540) 0.040 (1.016) 1.31 MAX. (33.27) 11 2 1324 1.100 (27.940) 0.190 MAX. (4.826) 0.010 (0.254) +0.002 –0.001 SEATING PLANE 0.025 (0.635) /C68/C105/C109/C101/C110/C115/C105/C111/C110/C32/C84/C111/C108/C101/C114/C97/C110/C99/C101/C115/C32(unless otherwise indicated): 2 place decimal (.XX) ±0.010 (±0.254) 3 place decimal (.XXX) ±0.005 (±0.127) /C76/C101/C97/C100/C32/C77/C97/C116/C101/C114/C105/C97/C108/C58/C32Kovar alloy /C76/C101/C97/C100/C32/C70/C105/C110/C105/C115/C104/C58/C3250 microinches (minimum) gold plating over 100 microinches (nominal) nickel plating

ORDERING INFORMATION

MODEL TEMPERATURE RANGE SAMPLING RATE ADC-228AMC 0 to +70°C 20MSPS ADC-228AMM –55 to +125°C 20MSPS ADC-228A/883 * –55 to +105°C 15MSPS Receptacle for PC board mounting can be ordered through AMP Inc., part # 3-331272-8 (component lead socket), 24 required. Contact DATEL for 883 product specifi cations DATEL's initial qualifi cation was done at 15MSPS and as a Mil-STD-883 Class G product per customer request. Mil-STD-883 Class G allows for a reduced temperature range (–55°C to +105°C) that applies to this device. Contact DATEL if a 20MSPS rate or a Mil-STD-883 Class H (–55°C to +125°C) temperature range is desired. ADC-228A 8-Bit, 20MHz, Complete Flash A/D Converter MDA_ADC-228A.B01 Page 4 of 4 Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifi cations are subject to change without notice. © 2009 Murata Power Solutions, Inc. USA: Mansfi eld (MA), Tel: (508) 339-3000, email: sales@murata-ps.com Canada: Toronto, Tel: (866) 740-1232, email: toronto@murata-ps.com UK: Milton Keynes, Tel: +44 (0)1908 615232, email: mk@murata-ps.com France: Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: france@murata-ps.com Germany: München, Tel: +49 (0)89-544334-0, email: munich@murata-ps.com Japan: Tokyo, Tel: 3-3779-1031, email: sales_tokyo@murata-ps.com Osaka, Tel: 6-6354-2025, email: sales_osaka@murata-ps.com China: Shanghai, Tel: +86 215 027 3678, email: shanghai@murata-ps.com Guangzhou, Tel: +86 208 221 8066, email: guangzhou@murata-ps.com Singapore: Parkway Centre, Tel: +65 6348 9096, email: singapore@murata-ps.com Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfi eld, MA 02048-1151 U.S.A. Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356 www.murata-ps.com email: sales@murata-ps.com ISO 9001 and 14001 REGISTERED Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000www.murata-ps.com 03/20/09