AD660 datasheet(3/12 Pages) AD

3 / 12 page

AD660

REV. A

–3–

(With the exception of Total Harmonic Distortion + Noise and Signal-to-Noise

Ratio, these characteristics are included for design guidance only and are not subject to test. THD+N and SNR are 100% tested.

TMIN

≤ T

MAX, VCC = +15 V, VEE = –15 V, VLL = +5 V except where noted.)

Parameter

Limit

Units

Test Conditions/Comments

Output Settling Time

µs max

20 V Step, TA = +25

°C

(Time to

±0.0008% FS

µs typ

20 V Step, TA = +25°C

with 2 k

Ω, 1000 pF Load)

µs typ

20 V Step, TMIN

≤ T

MAX

µs typ

10 V Step, TA = +25

°C

µs typ

10 V Step, TMIN ≤ TA ≤ TMAX

2.5

µs typ

1 LSB Step, TMIN

≤ T

MAX

Total Harmonic Distortion + Noise

A, B, S Grade

0.009

% max

0 dB, 990.5 Hz; Sample Rate = 96 kHz; TA = +25

°C

A, B, S Grade

0.056

% max

–20 dB, 990.5 Hz; Sample Rate = 96 kHz; TA = +25

°C

A, B, S Grade

5.6

% max

–60 dB, 990.5 Hz; Sample Rate = 96 kHz; TA = +25°C

Signal-to-Noise Ratio

dB min

TA = +25°C

Digital-to-Analog Glitch Impulse

nV-s typ

DAC Alternately Loaded with 8000H and 7FFFH

Digital Feedthrough

nV-s typ

DAC Alternately Loaded with 0000H and FFFFH; CS High

Output Noise Voltage

120

nV/

√Hz typ

Measured at VOUT; 20 V Span; Excludes Reference

Density (1 kHz – 1 MHz)

Reference Noise

125

nV/

√Hz typ

Measured at REF OUT

Specifications subject to change without notice.

AC PERFORMANCE CHARACTERISTICS

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 AD660 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.

ABSOLUTE MAXIMUM RATINGS*

VCC to AGND . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +17.0 V

VEE to AGND . . . . . . . . . . . . . . . . . . . . . . . +0.3 V to –17.0 V

VLL to DGND . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V

AGND to DGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

±1 V

Digital Inputs (Pins 5 through 23) to DGND . . . . . . –1.0 V to

+7.0 V

REF IN to AGND . . . . . . . . . . . . . . . . . . . . . . . . . . . .

±10.5 V

Span/Bipolar Offset to AGND . . . . . . . . . . . . . . . . . . .

±10.5 V

Ref Out, VOUT . . . . . . . Indefinite Short to AGND, DGND,

VCC, VEE, and VLL

Power Dissipation (Any Package)

To +60

°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1000 mW

Derates above +60

°C . . . . . . . . . . . . . . . . . . . . 8.7 mW/°C

Storage Temperature . . . . . . . . . . . . . . . . . . . –65

°C to +150°C

Lead Temperature Range

(Soldering 10 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . +300

°C

*Stresses above those listed under “Absolute Maximum Ratings” may cause

permanent damage to the device. This is a stress rating only and functional

operation of the device at these or any other conditions above those indicated in

the operational section of this specification is not implied. Exposure to absolute

maximum rating conditions for extended periods may affect device reliability.

PIN CONFIGURATION

TOP VIEW

(Not to Scale)

AD660

DB7, 15

OUT

SPAN,

BIPOLAR OFFSET

OUT

AGND

REF OUT

REF IN

LDAC

DGND

–V

HBE

SER

CLR

DB6, 14

DB5, 13

DB4, 12

DB3, 11

DB2, 10

DB0, 8, SIN

DB1, 9, MSB/LSB

LBE, UNI/BIP CLEAR

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