5

LTC1606

Note 1: Absolute Maximum Ratings are those values beyond which the life

of a device may be impaired.

Note 2: All voltage values are with respect to ground with DGND, AGND1

and AGND2 wired together (unless otherwise noted).

without latch-up.

Note 4: When these pin voltages are taken below ground, they will be

clamped by internal diodes. This product can handle input currents of

specified.

with respect to ground.

Note 7: Integral nonlinearity is defined as the deviation of a code from a

straight line passing through the actual end points of the transfer curve.

The deviation is measured from the center of the quantization band.

Note 8: Bipolar offset is the offset voltage measured from – 0.5 LSB when

the output code flickers between 0000 0000 0000 0000 and 1111 1111

1111 1111.

Note 9: Guaranteed by design, not subject to test.

Note 10: Recommended operating conditions.

Note 11: With CS low the falling R/C edge starts a conversion. If R/C

returns high at a critical point during the conversion, it can create errors.

For best results, ensure that R/C returns high within 1

µs after the start of

the conversion.

Note 12: As measured with fixed resistors shown in Figure 4. Adjustable to

zero with external potentiometer.

Note 13: Full-scale error is the worst-case of –FS or +FS 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.

Note 14: All specifications in dB are referred to a full-scale

±10V input.

Note 15: Full-power bandwidth is defined as full-scale input frequency at

which a signal-to-(noise + distortion) degrades to 60dB or 10 bits of

accuracy.

Note 16: Recovers to specified performance after (2 • FS) input

overvoltage.

LTC1606/LTC1606A

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Positive Supply Voltage

(Notes 9, 10)

4.75

5.25

V

Positive Supply Current

q

15

20

mA

Power Dissipation

q

75

100

mW

resistor to the analog input. Full-scale input range is

±10V.

AGND1 (Pin 2): Analog Ground. Tie to analog ground

plane.

REF (Pin 3): 2.5V Reference Output. Bypass with 2.2

µF

tantalum capacitor. Can be driven with an external refer-

ence.

CAP (Pin 4): Reference Buffer Output. Bypass with 10

µF

tantalum capacitor. The capacitor output voltage is 4.096V

when REF = 2.5V.

AGND2 (Pin 5): Analog Ground. Tie to analog ground

plane.

D15 to D8 (Pins 6 to 13): Three-State Data Outputs.

Hi-Z state when CS is high or when R/C is low.

DGND (Pin 14): Digital Ground.

D7 to D0 (Pins 15 to 22): Three-State Data Outputs.

Hi-Z state when CS is high or when R/C is low.

BYTE (Pin 23): Byte Select. With BYTE low, data will be

output with Pin 6 (D15) being the MSB and Pin 22 (D0)

being the LSB. With BYTE high the upper eight bits and

the lower eight bits will be switched. The MSB is output

on Pin 15 and bit 8 is output on Pin 22. Bit 7 is output on

Pin 6 and the LSB is output on Pin 13.

R/C (Pin 24): Read/Convert Input. With CS low, a falling

edge on R/C puts the internal sample-and-hold into the

hold state and starts a conversion. With CS low, a rising

edge on R/C enables the output data bits.