AD7679 datasheet(11/24 Pages) AD

11 / 24 page

AD7671

–11–

100

150

200

CL – pF

TPC 13. Typical Delay vs. Load Capacitance CL

SAMPLING RATE – SPS

0.001

0.01

0.1

100

1000

10000

100000

110

100

1000

10000

100000

1000000

AVDD, WARP/NORMAL

DVDD, WARP/NORMAL

AVDD, IMPULSE

DVDD, IMPULSE

OVDD, ALL MODES

TPC 14. Operating Currents vs. Sample Rate

1000

900

800

700

600

500

400

300

200

100

–55

–35

–15

105

TEMPERATURE – C

DVDD

AVDD

OVDD

TPC 15. Power-Down Operating Currents vs. Temperature

TEMPERATURE – C

–10

–55

125

–35

–15

456585105

–4

–6

–8

–2

OFFSET

–FS

+FS

TPC 16. +FS, Offset, and –FS vs. Temperature

CIRCUIT INFORMATION

The AD7671 is a fast, low power, single-supply, precise 16-bit

analog-to-digital converter (ADC). The AD7671 features different

modes to optimize performances according to the applications.

In Warp Mode, the AD7671 is capable of converting 1,000,000

samples per second (1 MSPS).

The AD7671 provides the user with an on-chip track-and-hold,

successive approximation ADC that does not exhibit any pipeline

or latency, making it ideal for multiple multiplexed channel

applications.

It is specified to operate with both bipolar and unipolar input

ranges by changing the connection of its input resistive scaler.

The AD7671 can be operated from a single 5 V supply and be

interfaced to either 5 V or 3 V digital logic. It is housed in a

48-lead LQFP package or a 48-lead LFCSP package that com-

bines space savings and flexible configurations as either serial

or parallel interface. The AD7671 is a pin-to-pin compatible

upgrade of the AD7665 and AD7664.

REV. C

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