ADS-946 14-Bit, 8MHz Sampling A/D Converters PRODUCT OVERVIEW The low-cost ADS-946 is a 14-bit, 8MHz sampling A/D converter. This device accurately samples full-scale input signals up to Nyquist frequencies with no missing codes. Excellent differential nonlinearity error (DNL), signal-to-noise ratio (SNR), and total harmonic distortion (THD) make the ADS-946 the ideal choice for both time-domain (CCD/FPA imaging, scanners, process control) and frequencydomain (radar, telecommunications, spectrum analysis) applications. The functionally complete ADS-946 contains a fast-settling sample-hold amplifier, a subranging (two-pass) A/D converter, an internal reference, FEATURES timing/control logic, and error-correction circuitry. Digital input and output levels are TTL. The ADS946 only requires the rising edge of a start convert pulse to operate. Requiring only ±5V supplies, the ADS-946 typically dissipates just 2 Watts. The device is offered with a bipolar input range of ±2V. Models are available for use in either commercial (0 to +70°C), industrial (–40 to +100°C), or HI-REL (–55 to +125°C) operating temperature ranges. A proprietary, auto-calibrating, error-correcting circuit allows the device to achieve specified performance over the full HI-REL temperature range. 14-bit resolution 8MHz guaranteed sampling rate No missing codes over full HI-REL temperature range Ideal for both time and frequency-domain applications Excellent THD (–75dB) and SNR (77dB) INPUT/OUTPUT CONNECTIONS FUNCTION PIN FUNCTION BIT 1 (MSB) 24 ANALOG GROUND BIT 2 23 OFFSET ADJUST BIT 3 22 +5V ANALOG SUPPLY BIT 4 21 ANALOG INPUT BIT 5 20 –5V SUPPLY BIT 6 19 ANALOG GROUND BIT 7 18 START CONVERT BIT 8 17 EOC BIT 9 16 BIT 14 (LSB) BIT 10 15 BIT 13 BIT 11 14 DIGITAL GROUND BIT 12 13 +5V DIGITAL SUPPLY PIN 1 2 3 4 5 6 7 8 9 10 11 12 Edge-triggered; No pipeline delays Small, 24-pin, ceramic DDIP or SMT Requires only ±5V supplies Low-power, 2 Watts MIL-STD-883 screening available BLOCK DIAGRAM OFFSET ADJUST 23 BUFFER 16 BIT 14 (LSB) FLASH ADC 1 + 15 BIT 13 12 BIT 12 POWER AND GROUNDING REF 22 +5V DIGITAL SUPPLY 13 –5V SUPPLY 20 ANALOG GROUND 19, 24 DIGITAL GROUND 14 DAC Σ AMP START CONVERT 18 EOC 17 FLASH ADC 2 REGISTER +5V ANALOG SUPPLY 11 BIT 11 OUTPUT REGISTER S/H DIGITAL CORRECTION LOGIC – REGISTER ANALOG INPUT 21 10 BIT 10 9 BIT 9 8 BIT 8 7 BIT 7 6 BIT 6 5 BIT 5 4 BIT 4 3 BIT 3 2 BIT 2 1 BIT 1 (MSB) TIMING AND CONTROL LOGIC Figure 1. ADS-946 Functional Block Diagram DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 USA • Tel: (508) 339-3000 • www.datel.com • e-mail: [email protected] 03 Sep 2015 MDA_ADS-946.C01 Page 1 of 9 ADS-946 14-Bit, 8MHz Sampling A/D Converters ABSOLUTE MAXIMUM RATINGS PARAMETERS LIMITS +5V Supply (Pins 13, 22) 0 to +6 –5V Supply (Pin 20) 0 to –6 Digital Input (Pin 18) –0.3 to +VDD +0.3 Analog Input (Pin 21) ±5 Lead Temperature (10 seconds) +300 PHYSICAL/ENVIRONMENTAL PARAMETERS MIN. TYP. MAX. UNITS Operating Temp. Range, Case ADS-946MC, GC, MC-C, GC-C 0 — +70 °C ADS-946ME, GE, ME-C, GE-C –40 — +100 °C ADS-946MM, GM, MM-C, GM-C –55 — +125 °C ADS-946MM-QL, 883, MM-QL-C, 883-C –55 — +125 °C Thermal Impedance θjc — 6 — °C/Watt θca — 23 — °C/Watt Storage Temperature Range –65 — +150 °C Package Type 24-pin, metal-sealed, ceramic DDIP or SMT Weight 0.42 ounces (12 grams) UNITS Volts Volts Volts Volts °C FUNCTIONAL SPECIFICATIONS (TA = +25°C, ±VDD = ±5V, 8MHz sampling rate, and a minimum 3 minute warmup ➀ unless otherwise specified.) ANALOG INPUT Input Voltage Range d Input Resistance Input Capacitance DIGITAL INPUT Logic Levels Logic "1" Logic "0" Logic Loading "1" Logic Loading "0" Start Convert Positive Pulse Width ➂ STATIC PERFORMANCE Resolution Integral Nonlinearity (fin = 10kHz) Differential Nonlinearity (fin = 10kHz) Full Scale Absolute Accuracy Bipolar Zero Error (Tech Note 2) Gain Error (Tech Note 2) No Missing Codes (fin = 10kHz) DYNAMIC PERFORMANCE Peak Harmonics (–0.5dB) dc to 500kHz 500kHz to 1MHz 1MHz to 4MHz Total Harmonic Distortion (–0.5dB) dc to 500kHz 500kHz to 1MHz 1MHz to 4MHz Signal-to-Noise Ratio (w/o distortion, –0.5dB) dc to 500kHz 500kHz to 1MHz 1MHz to 4MHz Signal-to-Noise Ratio f (& distortion, –0.5dB) dc to 500kHz 500kHz to 1MHz 1MHz to 4MHz Noise Two-Tone Intermodulation Distortion (fin = 2.45MHz, 1.975MHz, fs = 8MHz, –0.5dB) Input Bandwidth (–3dB) Small Signal (–20dB input) Large Signal (–0.5dB input) Feedthrough Rejection (fin = 4MHz) Slew Rate Aperture Delay Time Aperture Uncertainty S/H Acquisition Time (to ±0.003%FSR, 4V step) Overvoltage Recovery Time ➄ A/D Conversion Rate MIN. — — — +25°C TYP. ±2 200 6 MAX. — — 15 MIN. — — — 0 TO +70°C TYP. ±2 200 6 MAX. — — 15 MIN. — — — –55 TO +125°C TYP. ±2 200 6 MAX. — — 15 UNITS Volts Ω pF +2.0 — — — 10 — — — — 20 — +0.8 +20 –20 — +2.0 — — — 10 — — — — 20 — +0.8 +20 –20 — +2.0 — — — 10 — — — — 20 — +0.8 +20 –20 — Volts Volts μA μA ns — — –0.95 — — — 14 14 ±0.75 ±0.5 ±0.15 ±0.2 ±0.2 — — — +1.25 ±0.4 ±0.4 ±0.75 — — — –0.95 — — — 14 14 ±0.75 ±0.5 ±0.15 ±0.2 ±0.2 — — — +1.25 ±0.4 ±0.4 ±0.75 — — — –0.95 — — — 14 14 ±1 ±0.75 ±0.4 ±0.4 ±0.4 — — — +1.5 ±0.8 ±0.65 ±1.25 — Bits LSB LSB %FSR %FSR % Bits — — — –76 –75 –75 –72 –72 –71 — — — –76 –75 –75 –72 –72 –71 — — — –74 –74 –69 –70 –68 –65 dB dB dB — — — –75 –75 –75 –71 –70 –70 — — — –75 –75 –75 –71 –70 –70 — — — –74 –72 –69 –70 –68 –64 dB dB dB 73 73 73 77 77 77 — — — 73 73 73 77 77 77 — — — 72 72 71 76 76 76 — — — dB dB dB 70 69 69 — 74 73 73 150 — — — — 70 69 69 — 74 73 73 150 — — — — 68 65 65 — 73 70 70 150 — — — — dB dB dB μVrms — –82 — — –82 — — –82 — dB — — — — — — — — 8 30 10 85 ±400 +5 2 55 100 — — — — — — — 60 125 — — — — — — — — — 8 30 10 85 ±400 +5 2 55 100 — — — — — — — 60 125 — — — — — — — — — 8 30 10 85 ±400 +5 2 55 100 — — — — — — — 60 125 — MHz MHz dB V/μs ns ps rms ns ns MHz DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 USA • Tel: (508) 339-3000 • www.datel.com • e-mail: [email protected] 03 Sep 2015 MDA_ADS-946.C01 Page 2 of 9 ADS-946 14-Bit, 8MHz Sampling A/D Converters DIGITAL OUTPUTS Logic Levels Logic "1" Logic "0" Logic Loading "1" Logic Loading "0" Output Coding POWER REQUIREMENTS Power Supply Ranges ➅ +5V Supply –5V Supply Power Supply Currents +5V Supply –5V Supply Power Dissipation Power Supply Rejection MIN. +25°C TYP. MAX. MIN. +2.4 — — — — — — — — +0.4 –4 +4 +2.4 — — — +4.75 –4.75 +5.0 –5.0 +5.25 –5.25 +4.75 –4.75 +5.0 –5.0 — — — — +270 –150 2 — +290 –170 2.3 ±0.05 — — — — +270 –150 2 — Footnotes: ➀ All power supplies should be on before applying a start convert pulse. All supplies and the clock (start convert pulses) must be present during warmup periods. The device must be continuously converting during this time. ➁ Contact DATEL for other input voltage ranges. ➂ An 8MHz clock with a 20nsec positive pulse width is used for all production testing. See Timing Diagram, Figure 4, for more details. ➃ Effective bits is equal to: (SNR + Distortion) – 1.76 + 20 log 0 TO +70°C TYP. MAX. MIN. –55 TO +125°C TYP. MAX. UNITS — — — +0.4 — –4 — +4 Offset Binary +2.4 — — — — — — — — +0.4 –4 +4 Volts Volts mA mA +5.25 –5.25 +4.9 –4.9 +5.0 –5.0 +5.25 –5.25 Volts Volts +290 –170 2.3 ±0.05 — — — — +270 –150 2 — +290 –170 2.3 ±0.05 mA mA Watts %FSR/%V ➄ This is the time required before the A/D output data is valid once the analog input is back within the specified range. This time is only guaranteed if the input does not exceed ±2.2V (S/H saturation voltage). ➅ The minimum supply voltages of +4.9V and –4.9V for ±VDD are required for –55°C operation only. The minimum limits are +4.75V and –4.75V when operating at +125°C. Full Scale Amplitude Actual Input Amplitude 6.02 TECHNICAL NOTES 1. Obtaining fully specified performance from the ADS-946 requires careful attention to pc card layout and power supply decoupling. The device’s analog and digital ground systems are connected to each other internally. For optimal performance, tie all ground pins (14, 19 and 24) directly to a large analog ground plane beneath the package. Bypass all power supplies to ground with 4.7μF tantalum capacitors in parallel with 0.1μF ceramic capacitors. Locate the bypass capacitors as close to the unit as possible. 2. The ADS-946 achieves its specified accuracies without the need for external calibration. If required, the device’s small initial offset and gain errors can be reduced to zero using the adjustment circuitry shown in Figures 2 and 3. When using this circuitry, or any similar offset and gain calibration hardware, make adjustments following warmup. To avoid interaction, always adjust offset before gain. 3. Applying a start convert pulse while a conversion is in progress (EOC = logic 1) will initiate a new and inaccurate conversion cycle. Data for the interrupted and subsequent conversions will be invalid. 4. A passive bandpass filter is used at the input of the A/D for all production testing. 2kΩ GAIN ADJUST +5V 1.98kΩ SIGNAL INPUT To Pin 21 of ADS-946 50Ω –5V Figure 2. Optional ADS-946 Gain Adjust Calibration Circuit DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 USA • Tel: (508) 339-3000 • www.datel.com • e-mail: [email protected] 03 Sep 2015 MDA_ADS-946.C01 Page 3 of 9 ADS-946 14-Bit, 8MHz Sampling A/D Converters CALIBRATION PROCEDURE Gain Adjust Procedure Any offset and/or gain calibration procedures should not be implemented until devices are fully warmed up. To avoid interaction, offset must be adjusted before gain. The ranges of adjustment for the circuits in Figures 2 and 3 are guaranteed to compensate for the ADS-946's initial accuracy errors and may not be able to compensate for additional system errors. 1. Apply +1.99963V to the ANALOG INPUT (pin 21). 2. Adjust the gain potentiometer until all output bits are 1's and the LSB flickers between 1 and 0. 3. To confirm proper operation of the device, vary the input signal to obtain the output coding listed in Table 2. A/D converters are calibrated by positioning their digital outputs exactly on the transition point between two adjacent digital output codes. This can be accomplished by connecting LED’s to the digital outputs and adjusting until certain LED's "flicker" equally between on and off. Other approaches employ digital comparators or microcontrollers to detect when the outputs change from one code to the next. INPUT VOLTAGE RANGE ZERO ADJUST +½ LSB GAIN ADJUST +FS –1½ LSB ±2V +122μV +1.99963V Offset adjusting for the ADS-946 is normally accomplished at the point where the MSB is a 1 and all other output bits are 0’s and the LSB just changes from a 0 to a 1. This digital output transition ideally occurs when the applied analog input is +½ LSB (+122μV). Table 1. Gain and Zero Adjust BIPOLAR SCALE +FS –1 LSB +3/4 FS +1/2 FS 0 –1/2 FS –3/4 FS –FS +1 LSB –FS Gain adjusting is accomplished when all bits are 1's and the LSB just changes from a 1 to a 0. This transition ideally occurs when the analog input is at +full scale minus 1½ LSB's (+1.99963V). Zero/Offset Adjust Procedure 1. Apply a train of pulses to the START CONVERT input (pin 18) so the converter is continuously converting. 2. Apply +122μV to the ANALOG INPUT (pin 21). –5V ANALOG INPUT +5V ~ 4.7μF + 4.7μF 4.7μF + + 0.1μF 0.1μF 0.1μF 20 24 22, 13 14 21 +5V ZERO/ OFFSET ADJUST 23 20kΩ ADS-946 –5V START CONVERT OFFSET BINARY MSB LSB 11 1111 1111 1111 11 1000 0000 0000 11 0000 0000 0000 10 0000 0000 0000 01 0000 0000 0000 00 1000 0000 0000 00 0000 0000 0001 00 0000 0000 0000 Table 2. Output Coding for Bipolar Operation 3. Adjust the offset potentiometer until the output bits are 10 0000 0000 0000 and the LSB flickers between 0 and 1. 19 INPUT RANGE (±2V RANGE) +1.99976 +1.50000 +1.00000 0.00000 –1.00000 –1.50000 –1.99976 –2.00000 18 1 BIT 1 (MSB) 2 BIT 2 3 BIT 3 4 BIT 4 5 BIT 5 6 BIT 6 7 BIT 7 8 BIT 8 9 BIT 9 10 BIT 10 11 BIT 11 12 BIT 12 15 BIT 13 16 BIT 14 (LSB) 17 EOC ~ A single +5V supply should be used for both the +5V analog and +5V digital. If separate supplies are used, the difference between the two cannot exceed 100mV. Figure 3. Typical ADS-946 Connection Diagram DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 USA • Tel: (508) 339-3000 • www.datel.com • e-mail: [email protected] 03 Sep 2015 MDA_ADS-946.C01 Page 4 of 9 ADS-946 14-Bit, 8MHz Sampling A/D Converters THERMAL REQUIREMENTS overheat. The ground and power planes beneath the package, as well as all pcb signal runs to and from the device, should be as heavy as possible to help conduct heat away from the package. All DATEL sampling A/D converters are fully characterized and specified over operating temperature (case) ranges of 0 to +70°C and –55 to +125°C. All room-temperature (TA = +25°C) production testing is performed without the use of heat sinks or forced-air cooling. Thermal impedance figures for each device are listed in their respective specification tables. These devices do not normally require heat sinks, however, standard precautionary design and layout procedures should be used to ensure devices do not Electrically-insulating, thermally-conductive "pads" may be installed underneath the package. Devices should be soldered to boards rather than socketed, and of course, minimal air flow over the surface can greatly help reduce the package temperature. N START CONVERT N+1 20ns typ. Acquisition Time 10ns typ. INTERNAL S/H 55ns typ. 60ns max. 70ns typ. Hold 20ns typ. EOC 25ns typ. Conversion Time 78ns min., 85ns typ., 90ns max. 10ns typ. OUTPUT DATA Data N-1 Valid Data N Valid 95ns typ. 30ns typ. Invalid Data Notes: 1. Scale is approximately 5ns per division. Sampling rate = 8MHz. 2. The start convert positive pulse width must be between 10 and 50ns or between 80 and 110ns (when sampling at 8MHz) to ensure proper operation. For sampling rates less than 8MHz, the start pulse can be wider than 110nsec, however a minimum pulse width low of 15nsec should be maintained. An 8MHz clock with a 20nsec positive pulse width is used for all production testing. Figure 4. ADS-946 Timing Diagram DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 USA • Tel: (508) 339-3000 • www.datel.com • e-mail: [email protected] 03 Sep 2015 MDA_ADS-946.C01 Page 5 of 9 ADS-946 14-Bit, 8MHz Sampling A/D Converters 0 Amplitude Relative to Full Scale (dB) –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 –110 –120 –130 –140 –150 0 400 kHz 800 kHz 1.2 MHz 1.6 MHz 2.0 MHz 2.4 MHz 2.8 MHz 3.2 MHz 3.6 MHz 4.0 MHz Frequency (fs = 8MHz, fin = 3.85MHz, Vin = –0.5dB, 16,384-point FFT) Figure 5. FFT Analysis of ADS-946 Number of Occurrences DNL (LSB's) +0.81 –0.57 0 0 16,384 Codes 16,384 Digital Output Code Figure 6. ADS-946 Histogram and Differential Nonlinearity DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 USA • Tel: (508) 339-3000 • www.datel.com • e-mail: [email protected] 03 Sep 2015 MDA_ADS-946.C01 Page 6 of 9 • Tel: (508) 339-3000 • ANA. IN www.datel.com • SG10 SG3 SG2 SG1 P4 P2 26 24 22 20 18 16 14 12 10 8 6 4 2 25 23 21 19 17 15 13 11 9 7 5 3 1 ANA. IN 20μH L7 20μH L6 20μH L5 20μH L4 20μH L3 20μH L2 20μH L1 + + + C9 C2 C11 C4 2.2μF C5 2.2μF 0.01μF C14 0.01μF C7 C13 C6 2.2μF 0.01μF C12 0.01μF 0.01μF 2.2μF 2.2μF C10 C3 0.01μF 0.01μF 2.2μF 2.2μF C8 +5VF C1 + + + DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 USA + –5V +5VA +15V –15V –5VA +5V 5 (Optional) 4 R2 +15V 10 12 11 13 -15V SG8 0.1μF (Optional) U6 HCT7474 9 Q 8 5 4 13 12 SPARE GATES 0.1μF C19 (Optional) -15V C20 PR D CK CLR 2 R1 C18 0.1μF (Optional) SG6 20k CLC402 HI2541 10 +5VA OFFSET ADJUST -5VA SG7 6 U4 11 +15V +5VF + – SG5 11 0.1μF C15 03 Sep 2015 6 74HCT86 2.2μF C27 7 8 +5VA –5V X1 4 2 3 1 C23 2.2μF HCT7474 ADS-946 AGND BIT1 1 OFFSET BIT2 2 +5VA BIT3 3 AIN BIT4 4 -5V BIT5 5 AGND BIT6 6 TRIG BIT7 7 EOC BIT8 8 BIT14 BIT9 9 BIT13 BIT10 10 BIT11 11 DGND +5VD BIT12 12 U1 1 3.2k R3 0.1μF C24 + PR 5 D U6 Q 6 CK Q CLR 7 14 +5VF START CONVERT 24 23 22 21 20 19 18 17 16 15 14 13 +5V 15pF C25 SG9 14 +5VF 2 3 JPR1 10 9 P3 U5 U5 + 2 3 4 5 6 7 8 9 11 2 3 4 5 6 7 8 9 11 C17 2.2μF 0.1μF 20 Q1 1D 2D Q2 Q3 3D 4D Q4 U2 Q5 5D 6D Q6 Q7 7D Q8 8D OE CE 10 74HCT573 C21 74HCT573 19 18 17 16 15 14 13 12 1 20 Q1 19 1D 18 2D Q2 Q3 17 3D 16 4D Q4 15 U3 Q5 5D 6D Q6 14 13 Q7 7D Q8 12 8D 1 OE CE 10 +5VF + +5VF 3. SEE DATEL DWG A-24546 FOR ADDITIONAL INFORMATION ON ADS-B946 EVALUATION BOARD. 2. CLOSE SG1-SG3, SG9, SG10. 1. UNLESS OTHERWISE SPECIFIED ALL CAPACITORS ARE 50V. C1 - C7 ARE 20V. ALL RESISTORS ARE IN OHMS. 0.1μF 2.2μF C16 C22 3 NOTES: 74HCT86 8 74HCT86 2 1 START CONV. Figure 7. ADS-946 Evaluation Board Schematic (ADS-B946) U5 7 GND U5 SG4 ANA. IN +5VF 14 C26 0.1μF 8MHz CRYSTAL + OPTION 2 3 JPR2 1 CE B14 B13 B12 B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 TRIG 2 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 P1 1 33 31 29 27 25 23 21 19 17 15 13 11 9 7 5 3 ADS-946 14-Bit, 8MHz Sampling A/D Converters e-mail: [email protected] MDA_ADS-946.C01 Page 7 of 9 ADS-946 14-Bit, 8MHz Sampling A/D Converters MECHANICAL DIMENSIONS INCHES (mm) 24-Pin DDIP Versions 1.31 MAX. (33.27) ADS-946MC ADS-946ME ADS-946MM ADS-946/883 ADS-946MC-C ADS-946ME-C ADS-946MM-C ADS-946-C/883 24 Dimension Tolerances (unless otherwise indicated): 2 place decimal (.XX) ±0.010 (±0.254) 3 place decimal (.XXX) ±0.005 (±0.127) 13 0.80 MAX. (20.32) 1 Lead Material: Kovar alloy Lead Finish: 50 microinches (minimum) gold plating over 100 microinches (nominal) nickel plating 12 0.100 TYP. (2.540) 1.100 (27.940) 0.235 MAX. (5.969) 0.200 MAX. (5.080) +0.002 0.010 –0.001 (0.254) 0.190 MAX. (4.826) 0.100 (2.540) 0.040 (1.016) 0.018 ±0.002 (0.457) 24-Pin Surface Mount Versions 0.100 (2.540) 0.600 ±0.010 (15.240) SEATING PLANE 0.025 (0.635) 1.31 MAX. (33.02) 0.190 MAX. (4.826) Dimension Tolerances (unless otherwise indicated): 2 place decimal (.XX) ±0.010 (±0.254) 3 place decimal (.XXX) ±0.005 (±0.127) 13 24 ADS-946GC ADS-946GE ADS-946GM ADS-946G/883 ADS-946GC-C ADS-946GE-C ADS-946GM-C ADS-946G-C/883 0.80 MAX. (20.32) 1 Lead Material: Kovar alloy Lead Finish: 50 microinches (minimum) gold plating over 100 microinches (nominal) nickel plating 12 0.020 TYP. (0.508) 0.060 TYP. (1.524) PIN 1 INDEX 0.100 (2.540) 0.100 TYP. (2.540) 0.015 (0.381) MAX. radius for any pin 0.130 TYP. (3.302) 0.020 (0.508) 0.010 TYP. (0.254) 0.040 (1.016) DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 USA • Tel: (508) 339-3000 • www.datel.com • e-mail: [email protected] 03 Sep 2015 MDA_ADS-946.C01 Page 8 of 9 ADS-946 14-Bit, 8MHz Sampling A/D Converters ORDERING INFORMATION MODEL NUMBER OPERATING TEMP. RANGE 0 to +70°C PACKAGE ROHS DDIP No ADS-B946 Evaluation Board (without ADS-946) 0 to +70°C DDIP Yes HS-24 Heat Sink for all ADS-946 DDIP models ADS-946ME –40 to +100°C DDIP No ADS-946ME-C –40 to +100°C DDIP Yes ADS-946MC ADS-946MC-C ADS-946MM –55 to +125°C DDIP No ADS-946MM-C –55 to +125°C DDIP Yes ADS-946MM-QL –55 to +125°C DDIP No ADS-946MM-QL-C –55 to +125°C DDIP Yes ADS-946/883 –55 to +125°C DDIP No ADS-946-C/883 –55 to +125°C DDIP Yes ADS-946GC 0 to +70°C SMT No ADS-946GC-C 0 to +70°C SMT Yes ADS-946GE –40 to +100°C SMT No ADS-946GE-C –40 to +100°C SMT Yes ADS-946GM –55 to +125°C SMT No ADS-946GM-C –55 to +125°C SMT Yes ADS-946G/883 –55 to +125°C SMT No ADS-946G-C/883 –55 to +125°C SMT Yes DATEL is a registered trademark of DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 USA ACCESSORIES Receptacles for pc board mounting can be ordered through AMP, Inc., Part # 3-331272-8 (Component Lead Socket), 24 required. For MIL-STD-883 product specifcation, contact DATEL. DATEL, 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. Specifications are subject to change without notice. ITAR and ISO 9001/14001 REGISTERED © 2015 DATEL, Inc. www.datel.com • e-mail: [email protected] 03 Sep 2015 MDA_ADS-946.C01 Page 9 of 9