TLV1562IPW datasheet(6/42 Pages) TI1

Part #	TLV1562IPW

Description	2.7 V TO 5.5 V, HIGH-SPEED LOW-POWER RECONFIGURABLE ANALOG-TO-DIGITAL CONVERTER WITH 4-INPUT, DUAL S/H, PARALLEL INTERFACE, AND POWER DOWN

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TLV1562

2.7 V TO 5.5 V, HIGH-SPEED LOW-POWER RECONFIGURABLE ANALOG-TO-DIGITAL

CONVERTER WITH 4-INPUT, DUAL S/H, PARALLEL INTERFACE, AND POWER DOWN

SLAS162 – SEPTEMBER 1998

6

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

detailed description (continued)

Table 1. Select Input Channels

CR0.4

(INPUT TYPE)

CR0.(3,2)

(CONVERSION MODE

SELECT)

CR0.(1,0)

(CHANNEL SELECT)

CHANNEL(S)

SELECTED

NOTE

0 (Single-ended)

00 or 10

0,0

CH1

Single channel

0 (Single-ended)

00 or 10

0,1

CH2

Single channel

0 (Single-ended)

00 or 10

1,0

CH3

Single channel

0 (Single-ended)

00 or 10

1,1

CH4

Single channel

1 (Differential)

00 or 10

0,X

Differential pair A

Single channel

1 (Differential)

00 or 10

1,X

Differential pair B

Single channel

0 (Single-ended)

01 or 11

X,0

Both CH1 and CH3

Dual channels

0 (Single-ended)

01 or 11

X,1

Both CH2 and CH4

Dual channels

0 (Single-ended)

01 or 11

X,0

Both CH1 and CH3

Dual channels

0 (Single-ended)

01 or 11

X,1

Both CH2 and CH4

Dual channels

1 (Differential)

01 or 11

X,X

Both differential pairs A and B

Dual channels

configure the device

The device can be configured by writing to control registers CR0 and CR1. A read register is carried out by

auto-sequence when the device is put into the software power-down state. CR0 is read first and then CR1 at

the next two RD rising edges after the device is in the software power-down state. The falling edge of RD has

no meaning and does not trigger a conversion in the software power-down state.

VIH

VIL

VIH

VIL

CS

CSTART

WR

DATA

td(CSL-WRL)

tw(CSH)

td(WRH-CSH)

VIH

VIL

ts(DATAIN)

tw(WRL)

th(DATAIN)

Configure Data

Figure 2. Configuration Cycle Timing

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