ADS6143IRHB25 datasheet(1/67 Pages) TI1

Part #	ADS6143IRHB25

Description	14-BITS, 125/105/80/65 MSPS ADC WITH DDR LVDS/CMOS OUTPUTS

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FEATURES

DESCRIPTION

APPLICATIONS

ADS6145, ADS6144

ADS6143, ADS6142

SLWS198B – JULY 2007 – REVISED MARCH 2008

www.ti.com

14-BITS, 125/105/80/65 MSPS ADC WITH DDR LVDS/CMOS OUTPUTS

• Radar Systems

• Maximum Sample Rate: 125 MSPS

• 14-Bit Resolution with No Missing Codes

ADS6145/ADS6144/ADS6143/ADS6142

(ADS614X)

• 3.5 dB Coarse Gain and up to 6 dB

are a family of 14-bit A/D converters with sampling

Programmable Fine Gain for SNR/SFDR

frequencies up to 125 MSPS. The high performance

Trade-Off

and low power consumption of the ADS614X are

• Parallel CMOS and Double Data Rate (DDR)

combined in a compact 32 QFN package. An internal

LVDS Output Options

high bandwidth sample and hold and a low jitter clock

buffer help to achieve high SNR and high SFDR even

• Supports Sine, LVCMOS, LVPECL, LVDS Clock

at high input frequencies.

Inputs, and Clock Amplitude Down to 400

mVPP

The ADS614X feature coarse and fine gain options to

improve SFDR performance at lower full-scale analog

• Clock Duty Cycle Stabilizer

input ranges.

• Internal Reference with Support for External

Reference

The digital data outputs are either parallel CMOS or

DDR (Double Data Rate) LVDS. Several features

• No External Decoupling Required for

exist to ease data capture such as — controls for

References

output clock position and output buffer drive strength,

• Programmable Output Clock Position and

LVDS

current,

and

internal

termination

Drive Strength to Ease Data Capture

programmability.

• 3.3-V Analog and 1.8-V to 3.3-V Digital Supply

The output interface type, gain, and other functions

• 32-QFN Package (5 mm × 5 mm)

are programmed using a 3-wire serial interface.

Alternatively, some functions are configured using

• Pin Compatible 12-Bit Family (ADS612X)

dedicated parallel pins so the device powers up to the

desired state.

The ADS614X include internal references while

• Wireless Communications Infrastructure

eliminating traditional reference pins and associated

• Software Defined Radio

external decoupling. External reference mode is also

• Power Amplifier Linearization

supported.

• 802.16d/e

The ADS614X are specified over the industrial

• Test and Measurement Instrumentation

temperature range (–40

°C to 85°C).

• High Definition Video

• Medical Imaging

ADS614X Performance Summary

ADS6145

ADS6144

ADS6143

ADS6142

Fin = 10 MHz (0 dB gain)

90

91

93

95

SFDR, dBc

Fin = 170 MHz (3.5 dB gain)

78

82

83

84

Fin = 10 MHz (0 dB gain)

73.7

74.1

74.5

74.6

SINAD, dBFS

Fin = 170 MHz (3.5 dB gain)

68.6

70.5

70.6

71.5

Power, mW

417

374

318

285

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

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