ADSD-1402S MURATA-PS | Alldatasheet

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Technical content

Dual, 14-Bit, 2MSPS Sampling A/D Converter

FEATURES

  • •••• 14-bit resolution; 2MSPS sampling rate
  • •••• Functionally complete; ±5V input range
  • •••• No missing codes over full temperature range
  • •••• Edge-triggered; No pipeline delays
  • •••• ±5V supplies, 0.725 Watts
  • •••• Small, 40-pin, side-brazed, ceramic TDIP
  • •••• Ideal for both time and frequency domain applications
  • •••• Out-of-range indicator GENERAL DESCRIPTION DATEL's ADSD-1402 is a functionally complete, dual 14-bit, 2MSPS, sampling A/D converter. Its standard, 40-pin, triple- wide ceramic DIP contains two fast-settling sample/hold amplifiers, two 14-bit A/D converters, multiplexed output buffers, a precision reference, and all the timing and control logic necessary to operate from either two or a single start convert pulse. The ADSD-1402 is optimized for wideband frequency- domain applications and is fully FFT tested. The ADSD-1402 requires only ±5V supplies and typically consumes 0.725 Watts. Models are available in either commercial 0 to +70°C or military -55 to +125°C operating temperature ranges. INPUT/OUTPUT CONNECTIONS

1 INPUT A 40 INPUT B

3 ANALOG GROUND 38 ANALOG GROUND

4 GAIN A 37 GAIN B

5 OFFSET A 36 OFFSET B

6 RANGE 35 N/C

7 2.5V REF 34 N/C

8 ANALOG GROUND 33 ANALOG GROUND

9 –5V 32 –5V

10 ENABLE A 31 ENABLE B

11 START A 30 START B

13 BIT 14 (LSB) 28 BIT 1 (MSB)

14 BIT 13 27 BIT 2

15 BIT 12 26 BIT 3

16 BIT 11 25 BIT 4

17 BIT 10 24 BIT 5

18 BIT 9 23 BIT 6

19 BIT 8 22 BIT 7

20 DGND 21 DGND

Figure 1. ADSD-1402 Functional Block Diagram

(TA = +25°C, +V DD = +5V, Vee = –5V, 2MSPS sampling rate,Vin = ±5V and a minimum 7 minute warmup unless otherwise specified.) ANALOG INPUTS MIN. TYP . MAX. UNITS Input Voltage Range — ±5V — Volts Input Impedence — 800 — Ω Input Capacitance —7 1 5 p F DIGITAL INPUTS Logic Levels Logic "1" +2.0 — — Volts Logic "0" — — +0.8 Volts Logic Loading "1" — — +5 µA Logic Loading "0" — — –600 µA PERFORMANCE Integral Non-Linearity +25°C(fin=10kHz) — ±1 — LSB 0 to +70°C — ±1 — LSB –55 to +125°C — ±2 — LSB Differential Non-Linearity in = 10kHz) Offset Error +25°C (see Figure 3) — ±0.25 ±0.5 %FSR Gain Error +25°C (see Figure 3) — ±0.3 ±0.6 %FSR No Missing Codes (f in = 975kHz)

14 Bits –55 to +125°C

Output Coding Offset Bin. Logic Level Logic "1" +2.4 — — Volts Logic "0" — — +0.4 Volts Logic Loading "1" — — –160 µA Logic Loading "0" — — +6.4 mA Internal Reference Voltage, +25°C +2.45 +2.5 +2.55 Volts 0 to +70°C + 2.45 +2.5 +2.55 Volts External Current — — 5 mA DYNAMIC PERFORMANCE MIN. TYP. MAX. UNITS Total Harm. Distort. (–0.5dB) dc to 500kHz — –79 –72 dB 500kHz to 1MHz — –73 –70 dB Signal-to-Noise Ratio (w/o distortion, –0.5dB dc to 500kHz 75 79 — dB 500kHz to 1MHz 75 78 — dB Signal-to-Noise Ratio (and distortion, –0.5dB) dc to 500kHz 71 76 — dB 500kHz to 1MHz 69 73 — dB Spurious Free Dyn. Range dc to 500kHz — –85 –70 dB 500kHz to 1MHz — –74 –70 dB Two-tone IMD Distortion (f in = 975kHz, fs = 2.0Mhz, –0.5dB) –76 — — dB Input Bandwidth (–3dB) Small Signal (–20dB input) — 16 — MHz Large Signal (–0.5dB input) — 12 — MHz Slew Rate — ±250 — V/µs Aperture Delay Time — — ±10 ns Aperature Uncertainty ——5p s S/H Acq. Time , (to ±0.003%FSR) Step input — 100 150 ns Conversion Rate 2 — — MHz Feedthrough Rejection in = 1MHz) — 85 — dB Noise — 250 — µVrms POWER REQUIREMENTS Power Supply Ranges –5V Supply –5.25 –5 –4.75 Volts +5V Supply +4.75 +5.0 +5.25 Volts Power Supply Currents –5V Supply –80 –70 — mA +5V Supply — +50 +70 mA Power Dissipation — 0.6 0.725 Watts Power Supply Rejection — — ±0.01 %FSR%V PHYSICAL/ENVIRONMENTAL Oper. Temp. Range, Ambient ADSD-1402MC 0 — +70 °C ADSD-1402MM –55 — +125 °C Storage Temperature Range –65 — +150 °C Package Type 40-pin, metal-sealed, ceramic TDIP ABSOLUTE MAXIMUM RATINGS PARAMETERS LIMITS U NITS +5V Supply (Pins 2, 12, 39) 0 to +6 Volts –5V Supply (Pins 9, 32) 0 to –6 Volts Digital Inputs (Pins 3, 10, 11, 31) –0.3 to +V DD +0.3 Volts Analog Input (Pins 1, 40) ±7 Volts Lead Temp. (10 seconds) +300 °C Footnote: ➀ Same specification as In-Band Harmonics and Peak Harmonics.

  1. Full-Scale (Gain) Adjustments

Table 2. Offset and Gain Adjustments

  1. Repeat above steps for Analog Input B (Pin 40). Use trimpot

Full-Scale (Gain) adjustment.

  1. To confirm proper operation of the device, vary the precision
  2. Rated performance requires using good high-frequency

ground separately to the power supplies. Figure 2. ADSD-1402 Timing Diagram

  1. Connect the converter per Figure 3. Apply a pulse of 100

are used on the outputs for calibration purposes.

  1. Zero (Offset) Adjustments

Table 3. Output Coding

respective specification tables. greatly help reduce the package temperature. (typically 35%) by using one of DATEL's HS Series heat sinks. See Ordering Information for the assigned part number. Figure 3. ADSD-1402 Connection Diagram ➀ Recommended to use same supply source for +5 Analog and +5 Digital. Try using as clean of a supply as possible (Bypass caps., 1 0uF and .1uF). (Pin 31) low for prespective analog inputs A or B. A high on ENABLE A or ENABLE B results in disabling the output bus (High Z). See timing diagram for details.

DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 Tel: (508) 339-3000 / Fax: (508) 339-6356 For immediate assistance: (800) 233-2765 Internet: www.datel.com DATEL (UK) LTD. Tadley, England Tel: (01256)-880444 DATEL S.A.R.L. Montigny Le Bretonneux, France Tel: 1-34-60-01-01 DATEL GmbH Munchen, Germany Tel: 89-544334-0 DATEL KK Tokyo, Japan Tel: 3-3779-1031, Osaka Tel: 6-6354-2025 DATEL 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. Specifications are subject to change without notice. The DATEL logo is a registered DATEL, Inc. trademark. DS-0520C 11/03 MODEL NUMBER OPERATING TEMP. RANGE ADSD-1402MC 0 to +70°C ADSD-1402MM –55 to +125°C ACCESSORIES HS-40 Heat Sink for all ADSD-1402 models

ORDERING INFORMATION

MECHANICAL DIMENSIONS INCHES (mm) ISO 9001ISO 9001 /C82/C69/C71/C73/C83/C84/C69/C82/C69/C68 PIN 1 INDEX ( ON TOP) 2.12/2.07 (53.85/52.58) 0.018 ±0.002 (0.457) 0.100 TYP. (2.540) 0.110/0.090 (2.794/2.286) SEATING PLANE 0.035/0.015 (0.889/0.381) 0.200/0.175 (5.080/4.445) 0.245 MAX. (6.223) 0.210 MAX. (5.334) 0.045/0.035 (1.143/0.889) 1.11/1.08 (28.20/27.43) 1 20 21 40 1.900 ±0.008 (48.260) Dimension Tolerances (unless otherwise indicated): 2 place decimal (.XX) ±0.010 (±0.254) 3 place decimal (.XXX) ±0.005 (±0.127) Lead Material: Kovar alloy Lead Finish: 50 microinches (minimum) gold plating over 100 microinches (nominal) nickel plating 0.015/0.009 (0.381/0.229) 0.900 ±0.010 (22.86) 0.110/0.090 (2.794/2.286 PIN 1 INDEX ( ON TOP) 2.12/2.07 (53.85/52.58) 0.018 ±0.002 (0.457) 0.100 TYP. (2.540) 0.110/0.090 (2.794/2.286) SEATING PLANE 0.035/0.015 (0.889/0.381) 0.200/0.175 (5.080/4.445) 0.245 MAX. (6.223) 0.210 MAX. (5.334) 0.045/0.035 (1.143/0.889) 1.11/1.08 (28.20/27.43) 1 20 21 40 1.900 ±0.008 (48.260) Dimension Tolerances (unless otherwise indicated): 2 place decimal (.XX) ±0.010 (±0.254) 3 place decimal (.XXX) ±0.005 (±0.127) Lead Material: Kovar alloy Lead Finish: 50 microinches (minimum) gold plating over 100 microinches (nominal) nickel plating 0.015/0.009 (0.381/0.229) 0.900 ±0.010 (22.86) 0.110/0.090 (2.794/2.286 PIN 1 INDEX ( ON TOP) 2.12/2.07 (53.85/52.58) 0.018 ±0.002 (0.457) 0.100 TYP. (2.540) 0.110/0.090 (2.794/2.286) SEATING PLANE 0.035/0.015 (0.889/0.381) 0.200/0.175 (5.080/4.445) 0.245 MAX. (6.223) 0.210 MAX. (5.334) 0.045/0.035 (1.143/0.889) 1.11/1.08 (28.20/27.43) 1 20 21 40 1.900 ±0.008 (48.260) Dimension Tolerances (unless otherwise indicated): 2 place decimal (.XX) ±0.010 (±0.254) 3 place decimal (.XXX) ±0.005 (±0.127) Lead Material: Kovar alloy Lead Finish: 50 microinches (minimum) gold plating over 100 microinches (nominal) nickel plating 0.015/0.009 (0.381/0.229) 0.900 ±0.010 (22.86) 0.110/0.090 (2.794/2.286 Contact DATEL for high-reliability versions