Datasheet
ADS807
4
SBAS072A
www.ti.com
ADS807E
PARAMETER CONDITIONS MIN TYP MAX UNITS
ELECTRICAL CHARACTERISTICS (Cont.)
At T
A
= full specified temperature range, V
S
= +5V, differential input range = 2V to 3V for each input, sampling rate = 50MHz, unless otherwise noted.
CMOS
Straight Offset Binary
DIGITAL OUTPUTS
Logic Family
Logic Coding
Low Output Voltage (I
OL
= 50µA) VDRV = 5V +0.1 V
Low Output Voltage, (I
OL
= 1.6mA) VDRV = 5V +0.2 V
High Output Voltage, (I
OH
= 50µA) VDRV = 5V +4.9 V
High Output Voltage, (I
OH
= 0.5mA) VDRV = 5V +4.8 V
Low Output Voltage, (I
OL
= 50µA) VDRV = 3V +0.1 V
High Output Voltage, (I
OH
= 50µA) VDRV = 3V +2.8 V
3-State Enable Time OE = L
(5)
20 40 ns
3-State Disable Time OE = H
(5)
210ns
Output Capacitance 5pF
ACCURACY (Internal Reference, 2Vp-p, Unless Otherwise Noted)
Zero Error (Referred to –FS) at 25°C ±1.0 ±2.0 %FS
Zero Error Drift (Referred to –FS) 16 ppm/°C
Gain Error
(6)
at 25°C ±1.5 ±2.5 %FS
Gain Error Drift
(6)
66 ppm/°C
Gain Error
(7)
at 25°C ±1.0 ±1.5 %FS
Gain Error Drift
(7)
23 ppm/°C
Power-Supply Rejection of Gain ∆V
S
= ±5% 50 70 dB
REFT Tolerance
2V Full-Scale Deviation From Ideal 3.0V ±10 ±65 mV
3V Full-Scale Deviation From Ideal 3.25V ±20 ±100 mV
REFB Tolerance
2V Full-Scale Deviation From Ideal 2.0V ±10 ±65 mV
3V Full-Scale Deviation From Ideal 1.75V ±20 ±100 mV
External REFT Voltage Range REFB + 0.4 3 V
S
– 1.70 V
External REFB Voltage Range 1.70 2 REFT – 0.4 V
Reference Input Resistance 1kΩ
POWER-SUPPLY REQUIREMENTS
Supply Voltage: +V
S
Operating +4.75 +5.0 +5.25 V
Supply Current: +I
S
Operating 60 mA
Power Dissipation: VDRV = 5V External Reference 305 360 mW
VDRV = 3V External Reference 290 350 mW
VDRV = 5V Internal Reference 350 390 mW
VDRV = 3V Internal Reference 335 380 mW
Thermal Resistance,
θ
JA
SSOP-28 50 °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 50kΩ pull-down resistor is inserted internally on OE pin. (6) Includes internal reference.
(7) Excludes internal reference.