Analog Devices AD9698TQ, AD9698KR, AD9698KQ, AD9698KN, AD9696TZ-883B Datasheet

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Ultrafast

FEATURES

4.5 ns Propagation Delay 200 ps Maximum Propagation Delay Dispersion Single +5 V or 65 V Supply Operation Complementary Matched TTL Outputs

APPLICATIONS High Speed Line Receivers Peak Detectors Window Comparators High Speed Triggers Ultrafast Pulse Width Discriminators

GENERAL DESCRIPTION

The AD9696 and AD9698 are ultrafast TTL-compatible voltage comparators able to achieve propagation delays previously possible only in high performance ECL devices. The AD9696 is a single comparator providing 4.5 ns propagation delay, 200 ps maximum delay dispersion and 1.7 ns setup time. The AD9698 is a dual comparator with equally high performance; both devices are ideal for critical timing circuits in such applications as ATE, communications receivers and test instruments.

TTL Comparators

AD9696/AD9698

Both devices allow the use of either a single +5 V supply or ±5 V supplies. The choice of supplies determines the common mode input voltage range available: –2.2 V to +3.7 V for ±5 V operation, +1.4 V to +3.7 V for single +5 V supply operation.

The differential input stage features high precision, with offset voltages that are less than 2 mV and offset currents less than 1 µA. A latch enable input is provided to allow operation in ei- ther sample-and-hold or track-and-hold applications.

The AD9696 and AD9698 are both available as commercial temperature range devices operating from ambient temperatures of 0°C to +70°C, and as extended temperature range devices for ambient temperatures from –55°C to +125°C. Both versions are available qualified to MIL-STD-883 class B.

Package options for the AD9696 include a 10-pin TO-100 metal can, an 8-pin ceramic DIP, an 8-pin plastic DIP, and an 8-lead small outline plastic package. The AD9698 is available in a 16-pin ceramic DIP, a 16-lead ceramic gullwing, a 16-pin plastic DIP and a 16-lead small outline plastic package. Military qualified versions of the AD9696 come in the TO-100 can and ceramic DIP; the dual AD9698 comes in ceramic DIP.

FUNCTIONAL BLOCK DIAGRAM

AD9696/AD9698 Architecture

LATCH

GAIN

LEVEL

SHIFT

OUTPUTINPUT

AD9698

NONINVERTING

INPUT

INVERTING

INPUT

LATCH

ENABLE

Q OUTPUT

REV. B

Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

AD9696

NONINVERTING

INPUT

INVERTING

INPUT

LATCH

ENABLE

Q OUTPUT

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 617/329-4700 World Wide Web Site: http://www.analog.com Fax: 617/326-8703 © Analog Devices, Inc., 1997

LATCH

ENABLE

Q OUTPUT

NONINVERTING

INPUT INVERTING INPUT

AD9696/AD9698–SPECIFICATIONS

ABSOLUTE MAXIMUM RATINGS

Supply Voltage (+VS/–VS) . . . . . . . . . . . . . . . . . . . .+7 V/–7 V

Input Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±5 V

Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . 5.4 V

Latch Enable Voltage . . . . . . . . . . . . . . . . . . . . . –0.5 V to +V

Output Current (Continuous) . . . . . . . . . . . . . . . . . . . 20 mA

Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . 600 mW

Operating Temperature Range

AD9696/AD9698KN/KQ/KR . . . . . . . . . . . . 0°C to +70°C

AD9696/AD9698TQ . . . . . . . . . . . . . . . . –55°C to +125°C

Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C

Junction Temperature

KQ/TQ Suffixes . . . . . . . . . . . . . . . . . . . . . . . . . . . +175°C

KN/KR Suffixes . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C

Lead Soldering Temperature (10 sec) . . . . . . . . . . . . +300°C

(Supply Voltages = –5.2 V and +5.0 V; load as specified in Note 4,

ELECTRICAL CHARACTERISTICS

unless otherwise noted)

08C to +708C –558C to +1258C AD9696/AD9698 AD9696/AD9698

Test KN/KQ/KR TQ

Parameter Temp Level Min Typ Max Min Typ Max Units

INPUT CHARACTERISTICS

Input Offset Voltage

+25°C I 1.0 2.0 1.0 2.0 mV

Full VI 3.0 3.0 mV Input Offset Voltage Drift Full V 10 10 µV/°C Input Bias Current +25°C I 16 55 16 55 µA

Full VI 110 110 µA Input Offset Current +25°C I 0.4 1.0 0.4 1.0 µA

Full VI 1.3 1.3 µA Input Capacitance +25°CV 3 3 pF Input Voltage Range

±5.0 V Full VI –2.2 +3.7 –2.2 +3 7 V +5.0 V Full VI +1.4 +3.7 +1.4 +3.7 V

Common Mode Rejection Ratio

±5.0 V Full VI 80 85 80 85 dB +5.0 V Full VI 57 63 57 63 dB

LATCH ENABLE INPUT

Logic “1” Voltage Threshold Full VI 2.0 2.0 V Logic “0” Voltage Threshold Full VI 0.8 0.8 V Logic “1” Current Full VI 10 10 µA Logic “0” Current Full VI 1 1 µA

DIGITAL OUTPUTS

Logic “1” Voltage (Source 4 mA) Full VI 2.7 3.5 2.7 3.5 V Logic “0” Voltage (Sink 10 mA) Full VI 0.4 0.5 0.4 0.5 V

SWITCHING PERFORMANCE

Propagation Delay (t

) Input to Output HIGH Full IV 4.5 7.0 4.5 7.0 ns Input to Output LOW Full IV 4.5 7.0 4.5 7.0 ns Latch Enable to Output HIGH +25°C IV 6.5 8.5 6.5 8.5 ns Latch Enable to Output LOW +25°C IV 6.5 8.5 6.5 8.5 ns Delta Delay Between Outputs +25°C IV 0.5 1.5 0.5 1.5 ns

Propagation Delay Dispersion

20 mV to 100 mV Overdrive +25°C V 100 100 ps 100 mV to 1.0 V Overdrive +25°C IV 100 200 100 200 ps

Rise Time Fall Time

+25°C V 1.85 1.85 ns +25°C V 1.35 1.35 ns

Latch Enable

Pulse Width [t Setup Time (t

] +25°C IV 3.5 2.5 3.5 2.5 ns

PW(E)

) +25°C IV 3 1.7 3 1.7 ns

Hold Time (tH) +25°C IV 3 1.9 3 1.9 ns

–2–

REV. B

AD9696/AD9698

08C to +708C –558C to +1258C AD9696/AD9698 AD9696/AD9698

Test KN/KQ/KR TQ

Parameter Temp Level Min Typ Max Min Typ Max Units

POWER SUPPLY

Positive Supply Current

AD9696 Full VI 26 32 26 32 mA AD9698 Full VI 52 64 52 64 mA

Negative Supply Current

AD9696 Full VI 2.5 4.0 2.5 4.0 mA AD9698 Full VI 5.0 8.0 5.0 8.0 mA

Power Dissipation

AD9696 +5.0 V Full V 130 130 mW AD9696 ±5.0 V Full V 146 146 mW AD9698 +5.0 V Full V 260 260 mW AD9698 ±5.0 V Full V 292 292 mW

Power Supply Rejection Ratio

NOTES

Absolute maximum ratings are limiting values, to be applied individually, and beyond which the serviceability of the circuit may be impaired. Functional operability is not necessarily implied. Exposure to absolute maximum rating conditions for an extended period of time may affect device reliability.

Typical thermal impedances: AD9696 Metal Can θJA = 170°C/W θJC = 50°C/W AD9696 Ceramic DIP θJA = 110°C/W θJC = 20°C/W AD9696 Plastic DIP θJA = 160°C/W θJC = 30°C/W AD9696 Plastic SOIC θJA = 180°C/W θJC = 30°C/W AD9698 Ceramic DIP θJA = 90°C/W θJC = 25°C/W AD9698 Plastic DIP θJA = 100°C/W θJC = 20°C/W AD9698 Plastic SOIC θJA = 120°C/W θJC = 20°C/W

+25°CVI 70 70 dB

(+5.0 V)

(–5.2 V)

Full VI 65 65 dB

Load circuit has 420 Ω from +VS to output; 460 Ω from output to ground.

RS ≤100 Ω.

Propagation delays measured with 100 mV pulse; 10 mV overdrive.

Supply voltages should remain stable within ±5% for normal operation.

Specification applies to both +5 V and ±5 V supply operation.

Specification applies to only ±5 V supply operation.

Measured with nominal values ±5% of +VS and –VS.

Although fall time is faster than rise time, the complementary outputs cross at

midpoint of logic swing because of delay on start of falling edge.

Specifications subject to change without notice.

EXPLANATION OF TEST LEVELS Test Level

I – 100% production tested. II – 100% production tested at +25°C, and sample tested at

specified temperatures. III – Sample tested only. IV – Parameter is guaranteed by design and characterization

testing. V – Parameter is a typical value only. VI – All devices are 100% production tested at +25°C.

100% production tested at temperature extremes for

extended temperature devices; sample tested at temp-

erature extremes for commercial/industrial devices.

ORDERING GUIDE

Package

Model Package Temperature Option

AD9696KN Plastic DIP 0°C to +70°C N-8 AD9696KR SOIC 0°C to +70°C R-8 AD9696KQ Cerdip 0°C to +70°C Q-8 AD9696TQ Cerdip –55°C to +125°C Q-8 AD9696TZ/883B

Gullwing –55°C to +125°C Z-8A AD9698KN Plastic DIP 0°C to +70°C N-16 AD9698KR SOIC 0°C to +70°C R-16A AD9698KQ Cerdip 0°C to +70°C Q-16 AD9698TQ Cerdip –55°C to +125°C Q-16 AD9698TZ/883B3Gullwing –55°C to +125°C Z-16

NOTES

N = Plastic DIP, Q = Cerdip, R = Small Outline (SOIC), Z = Ceramic Leaded Chip Carrier.

Refer to AD9696TZ/883B military data sheet.

Refer to AD9698TZ/883B military data sheet.

REV. B

–3–

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