ADS2807

3

SBAS169B

www.ti.com

ADS2807Y

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

DYNAMIC CHARACTERISTICS (Cont.)

f = 1MHz (–1dBFS input)

65

dBFS

f = 10MHz (–1dBFS input)

57

64

dBFS

f = 20MHz (–1dBFS input)

64

dBFS

f = 1MHz (–1dBFS input)

3Vp-p

68

dBFS

f = 10MHz (–1dBFS Input)

3Vp-p

68

dBFS

Channel-to-Channel Crosstalk

2Vp-p

85

dBFS

Output Noise

Input Grounded

0.2

LSBs rms

Aperture Delay Time

2ns

Aperture Jitter

1.2

ps rms

Overvoltage Recovery Time

2ns

DIGITAL INPUTS

Logic Family

+3V/+5V CMOS Compatible

Convert Command

Start Conversion

Rising Edge of Convert Clock

+50

µA

+10

µA

High Level Input Voltage

+2.4

V

Low Level Input Voltage

+1.0

V

Input Capacitance

5pF

DIGITAL OUTPUTS

Logic Family

CMOS

Logic Coding

Straight Offset Binary

VDRV = 5V

+0.1

V

VDRV = 5V

+0.2

V

VDRV = 5V

+4.9

V

VDRV = 5V

+4.8

V

VDRV = 3V

+0.4

V

VDRV = 3V

+2.4

V

3-State Enable Time

20

40

ns

3-State Disable Time

210

ns

Output Capacitance

5pF

ACCURACY (Internal Reference, 2Vp-p,

Unless Otherwise Noted)

Zero Error (Midscale)

at 25

°C

±1.0

%FS

Zero Error Drift (Midscale)

16

ppm/

°C

at 25

°C

±1.5

%FS

66

ppm/

°C

at 25

°C

±1.0

%FS

23

ppm/

°C

Power-Supply Rejection of Gain

∆V

70

dB

REFT Tolerance

2V Full-Scale

Deviation From Ideal 3.0V

±10

±65

mV

3V Full-Scale

Deviation From Ideal 3.25V

±20

mV

REFB Tolerance

2V Full-Scale

Deviation From Ideal 2.0V

±10

±65

mV

3V Full-Scale

Deviation From Ideal 1.75V

±20

mV

External REFT Voltage Range

REFB + 0.4

3

V

External REFB Voltage Range

1.70

2

REFT – 0.4

V

Reference Input Resistance

375

Ω

POWER-SUPPLY REQUIREMENTS

Operating

+4.75

+5.0

+5.25

V

Operating

134

mA

Power Dissipation: VDRV = 5V

External Reference

720

mW

VDRV = 3V

External Reference

700

mW

VDRV = 5V

Internal Reference

740

mW

VDRV = 3V

Internal Reference

720

760

mW

Thermal Resistance,

θ

JA

TQFP-64

21.5

°C/W

NOTES: (1) Spurious-Free Dynamic Range refers to the magnitude of the largest harmonic. (2) dBFS means dB relative to Full-Scale. (3) 2-tone intermodulation

distortion is referred to the largest fundamental tone. This number will be 6dB higher if it is referred to the magnitude of the 2-tone fundamental envelope.

(4) Effective number of bits (ENOB) is defined by as (SINAD – 1.76) /6.02. (5) A 50k

reference. (7) Excludes internal reference.