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ADS823 Datasheet(PDF) 3 Page - Texas Instruments

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Part No. ADS823
Description  10-Bit, 60MHz Sampling ANALOG-TO-DIGITAL CONVERTER
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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ADS823 Datasheet(HTML) 3 Page - Texas Instruments

 
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ADS823, ADS826
SBAS070B
3
www.ti.com
DIGITAL INPUTS
Logic Family
Convert Command
Start Conversion
High Level Input Current(6) (VIN = 5V)
+100
µA
Low Level Input Current (VIN = 0V)
+10
µA
High Level Input Voltage
+3.5
+2.0
V
Low Level Input Voltage
+1.0
+0.8
V
Input Capacitance
5
pF
DIGITAL OUTPUTS
Logic Family
Logic Coding
Low Output Voltage (IOL = 50µA to 1.6mA)
VDRV = 5V
+0.1
V
High Output Voltage, (IOH = 50µA to 0.5mA)
+4.9
V
Low Output Voltage, (IOL = 50µA to 1.6mA)
VDRV = 3V
+0.1
V
High Output Voltage, (IOH = 50µA to 0.5mA)
+2.8
V
3-State Enable Time
OE = H to L
2
40
✻✻
ns
3-State Disable Time
OE = L to H
2
10
✻✻
ns
Output Capacitance
5
pF
ACCURACY (Internal Reference, 2Vp-p,
fS = 2.5Mhz
Unless Otherwise Noted)
Zero Error (referred to –FS)
At 25
°C
±1.0
±3.0
✻✻
% FS
Zero Error Drift (referred to –FS)
16
ppm/
°C
Midscale Offset Error
At 25
°C
±0.29
% FS
Gain Error(7)
At 25
°C
±1.5
±3.5
✻✻
% FS
Gain Error Drift(7)
66
ppm/
°C
Gain Error(8)
At 25
°C
±1.0
±2.5
✻✻
% FS
Gain Error Drift(8)
23
ppm/
°C
Power-Supply Rejection of Gain
∆V
S = ±5%
70
dB
REFT Tolerance
Deviation From Ideal 3.5V
±10
±25
✻✻
mV
REFB Tolerance(9)
Deviation From Ideal 1.5V
±10
±25
✻✻
mV
External REFT Voltage Range
REFB + 0.8
3.5
VS – 1.25
✻✻
V
External REFB Voltage Range
1.25
1.5
REFT – 0.8
✻✻
V
Reference Input Resistance
REFT to REFB
1.6
k
POWER-SUPPLY REQUIREMENTS
Supply Voltage: +VS
Operating
+4.75
+5.0
+5.25
✻✻
V
Supply Current: +IS
Operating
55
mA
Power Dissipation: VDRV = 5V
External Reference
275
335
✻✻
mW
VDRV = 3V
External Reference
265
mW
VDRV = 5V
Internal Reference
295
350
✻✻
mW
VDRV = 3V
Internal Reference
285
mW
Power-Down
Operating
20
mW
Thermal Resistance,
θ
JA
SSOP-28
89
°C/W
✻ Indicates the same specifications as the ADS823E.
NOTES: (1) ADS826 accepts a +3V clock input. (2) Spurious-Free Dynamic Range refers to the magnitude of the largest harmonic. (3) dBFS means dB relative to Full-Scale. (4) 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. (5) Effective number of bits (ENOB) is defined
by (SINAD – 1.76)/6.02. (6) A 50k
Ω pull-down resistor is inserted internally on OE pin. (7) Includes internal reference. (8) Excludes internal reference. (9) Ensured by design.
ELECTRICAL CHARACTERISTICS (Cont.)
At TA = full specified temperature range, VS = +5V single-ended input range = 1.5V to 3.5V, sampling rate = 60MHz, external reference, unless otherwise noted.
ADS823E
ADS826E(1)
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
CMOS-Compatible
Rising Edge of Convert Clock
TTL, +3V/+5V CMOS-Compatible
Rising Edge of Convert Clock
CMOS
Straight Offset Binary
CMOS
Straight Offset Binary


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