AD9000

–4–

REV. A

WARNING!

ESD SENSITIVE DEVICE

CAUTION

ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily

accumulate on the human body and test equipment and can discharge without detection.

Although the AD9000 features proprietary ESD protection circuitry, permanent damage may

occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD

precautions are recommended to avoid performance degradation or loss of functionality.

DIE LAYOUT

MECHANICAL INFORMATION

Die Dimensions . . . . . . . . . . . . . . . . 129

× 217 × 15 (±2) mils

Pad Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

× 4 mils

Metalization . . . . . . . . . . . . . . . . . . . . . . . 10,000Å Aluminum

Backing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . None

Passivation . . . . . . . . . . . . . . . . . . . . . . . . 10,000Å Oxynitride

Die Attach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Gold Eutectic

Bond Wire . . . . . . . . 1.25 mil Aluminum; Ultrasonic Bonding

or 1 mil Gold; Gold Ball Bonding

ORDERING GUIDE

1

Temperature

Package

Device

Range

Description

Option

2

AD9000JD

0

°C to +70°C

16-Pin DIP, Industrial

D-16

AD9000SD

–55

°C to +125°C

16-Pin DIP

D-16

AD9000SE

–55

°C to +125°C

28-Pin LCC

E-28A

NOTES

PIN DESIGNATIONS

PIN DESCRIPTIONS

Pin Name

Description

Negative supply terminal, nominally –5.2 V.

ANALOG GROUND

Analog ground return. All grounds should be connected together near the AD9000.

The hysteresis control voltage varies the comparator hysteresis from 15 mV to 50 mV, for a change of 0 V

to +3 V at the hysteresis control pin.

ENCODE

The ENCODE pin controls the conversion cycle. Encode is rising edge sensitive and should be driven

with a 50% duty-cycle waveform under normal conditions.

The most negative reference voltage for the internal resistor ladder.

Analog input pin.

Positive supply terminal, nominally +5.0 V.

Most positive reference voltage of the internal resistor ladder.

BIT 6 (LSB)

One of six digital outputs. BIT 6 (LSB) is the least-significant-bit of the digital output.

BIT 5 – BIT 2

One of six digital outputs.

BIT 1 (MSB)

One of six digital outputs. BIT 1 (MSB) is the most-significant-bit of the digital output.

OVERFLOW

DIGITAL GROUND

Digital ground return. All grounds should be connected together near the AD9000.