3

®

ADS7808

DIGITAL OUTPUTS

Data Format

Data Coding

Pipeline Delay

Data Clock

Internal

EXT/INT LOW

2.3

T

MHz

(Output Only When

Transmitting Data)

External

EXT/INT HIGH

0.1

10

TT

MHz

(Can Run Continually)

+0.4

T

V

T

V

Leakage Current

High-Z State,

±5

T

µA

Output Capacitance

High-Z State

15

15

pF

POWER SUPPLIES

Specified Performance

Must be

≤ V

ANA

+4.75

+5

+5.25

T

**V

+4.75

+5

+5.25

T

**

V

0.3

*

mA

16

*

mA

Power Dissipation: PWRD LOW

100

*

mW

PWRD HIGH

50

*

µW

TEMPERATURE RANGE

Specified Performance

–40

+85

*

*

°C

Derated Performance

–55

+125

*

*

°C

Storage

–65

+150

*

*

°C

Thermal Resistance (

θ

Plastic DIP

75

*

°C/W

SOIC

75

*

°CW

NOTES: (1) LSB means Least Significant Bit. For the

±10V input range, one LSB is 4.88mV. (2) Typical rms noise at worst case transitions and temperatures. (3)

As measured with fixed resistors in Figure 4. Adjustable to zero with external potentiometer. (4) For bipolar input ranges, full scale error is the worst case of –Full

Scale or +Full Scale untrimmed deviation from ideal first and last code transitions, divided by the transition voltage (not divided by the full-scale range) and includes

the effect of offset error. For unipolar input ranges, full scale error is the deviation of the last code transition divided by the transition voltage. It also includes the

effect of offset error. (5) All specifications in dB are referred to a full-scale

±10V input. (6) Full-Power Bandwidth defined as Full-Scale input frequency at which Signal-

to (Noise + Distortion) degrades to 60dB. (7) Recovers to specified performance after 2 x FS input overvoltage.

ELECTROSTATIC

DISCHARGE SENSITIVITY

Electrostatic discharge can cause damage ranging from per-

formance degradation to complete device failure. Burr-Brown

Corporation recommends that this integrated circuit be handled

and stored using appropriate ESD protection methods.

ELECTRICAL

ADS7808P/U

ADS7808PB/UB

PARAMETER

CONDITIONS

MIN

TYP

MAX

MIN

TYP

MAX

UNITS

REF ....................................... Indefinite Short to AGND2,

Ground Voltage Differences: DGND, AGND2 .................................

±0.3V

Maximum Junction Temperature .................................................. +165

°C

Internal Power Dissipation ............................................................ 700mW

Lead Temperature (soldering, 10s) .............................................. +300

°C

ABSOLUTE MAXIMUM RATINGS

ORDERING INFORMATION

MINIMUM

MAXIMUM

SIGNAL-TO-

SPECIFICATION

LINEARITY

(NOISE + DISTORTION)

TEMPERATURE

PRODUCT

ERROR (LSB)

RATIO(dB)

RANGE (

PACKAGE

ADS7808P

±0.9

70

–40

°C to +85°C

20-Pin Plastic DIP

ADS7808PB

±0.45

72

–40

°C to +85°C

20-Pin Plastic DIP

ADS7808U

±0.9

70

–40

°C to +85°C

20-Pin SOIC

ADS7808UB

±0.45

72

–40

°C to +85°C

20-Pin SOIC

PACKAGE INFORMATION

PACKAGE DRAWING

PRODUCT

PACKAGE

ADS7808P

20-Pin Plastic DIP

222

ADS7808PB

20-Pin Plastic DIP

222

ADS7808U

20-Pin SOIC

221

ADS7808UB

20-Pin SOIC

221

NOTE: (1) For detailed drawing and dimension table, please see end of data

sheet, or Appendix C of Burr-Brown IC Data Book.

Serial 12 bits

Binary Two's Complement or Straight Binary

Conversion results only available after completed conversion.

Selectable for internal or external data clock