SPECIFICATIONS
All specifications TMIN to TMAX, +VA = +VD = +5V, VREF = internal +2.5V and fCLK = 8MHz, fSAMPLE = 500kHz, unless otherwise noted.
ADS7864Y
TYP
ADS7864YB
TYP
PARAMETER
RESOLUTION
CONDITIONS
MIN
MAX
MIN
MAX
UNITS
12
✻
Bits
ANALOG INPUT
Input Voltage Range-Bipolar
Absolute Input Range
VCENTER = +2.5V
–VREF
–0.3
–0.3
+VREF
+VA + 0.3
+VA + 0.3
✻
✻
V
V
V
+IN
–IN
Input Capacitance
Input Leakage Current
15
±1
✻
✻
pF
µA
CLK = GND
SYSTEM PERFORMANCE
No Missing Codes
Integral Linearity
Integral Linearity Match
Differential Linearity
Bipolar Offset Error
Bipolar Offset Error Match
Positive Gain Error
Positive Gain Error Match
Negative Gain Error
Negative Gain Error Match
Common-Mode Rejection Ratio
12
✻
✻
Bits
LSB
LSB
LSB
LSB
LSB
% of FSR
LSB
% of FSR
LSB
±0.75
0.5
±0.6
±0.75
±2
±0.5
✻
±0.4
±0.5
±1
–0.9
Referenced to REFIN
Referenced to REFIN
Referenced to REFIN
±4
3
±0.75
3
±0.75
3
±3
✻
±0.5
✻
±0.5
✻
±0.15
±0.15
±0.1
±0.1
At DC
84
80
120
0.3
✻
✻
✻
✻
dB
dB
µVrms
LSB
VIN = ±1.25Vp-p at 50kHz
Noise
Power Supply Rejection Ratio
2
✻
SAMPLING DYNAMICS
Conversion Time per A/D
Acquisition Time
1.75
0.25
✻
✻
µs
µs
Throughput Rate
Aperture Delay
Aperture Delay Matching
Aperture Jitter
Small-Signal Bandwidth
500
✻
kHz
ns
ps
ps
MHz
3.5
100
50
✻
✻
✻
✻
40
DYNAMIC CHARACTERISTICS
Total Harmonic Distortion
SINAD
Spurious Free Dynamic Range
Channel-to-Channel Isolation
VIN = ±2.5Vp-p at 100kHz
VIN = ±2.5Vp-p at 100kHz
VIN = ±2.5Vp-p at 100kHz
–75
71
78
✻
✻
✻
✻
dB
dB
dB
dB
V
IN = ±2.5Vp-p at 50kHz
–76
VOLTAGE REFERENCE
Internal Reference Voltage
Internal Drift
2.475
2.5
10
50
2.525
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
V
ppm/°C
µVp-p
mA
mV/µA
dB
Internal Noise
Internal Source Current
Internal Load Rejection
Internal PSRR
External Reference Voltage Range
Input Current
2
0.005
80
2.5
1.2
2.6
100
✻
✻
V
µA
Input Capacitance
5
✻
✻
pF
DIGITAL INPUT/OUTPUT
Logic Family
Logic Levels: VIH
VIL
VOH
VOL
External Clock
Data Format
CMOS
IIH = +5µA
IIL = +5µA
IOH = –500µA
IOL = –500µA
3.0
–0.3
3.5
+VD + 0.3
0.8
✻
✻
✻
✻
✻
V
V
V
V
MHz
0.4
8
✻
✻
0.2
✻
Binary Two’s Complement
✻
✻
POWER SUPPLY REQUIREMENTS
Power Supply Voltage, +VA, +VD
Quiescent Current, +VA, +VD
Power Dissipation
4.75
5
5.25
10
50
✻
✻
✻
✻
V
mA
mW
✻ Specifications same as ADS7864Y.
Theinformationprovidedhereinisbelievedtobereliable;however, BURR-BROWNassumesnoresponsibilityforinaccuraciesoromissions. BURR-BROWNassumes
no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change
without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant
any BURR-BROWN product for use in life support devices and/or systems.
®
ADS7864
2
BB [ BURR-BROWN CORPORATION ]
