SPECIFICATIONS
At TA = –40°C to +85°C, +VCC = +5V, fSAMPLE = 500kHz, fCLK = 16 • fSAMPLE, and internal +2.5V reference, unless otherwise specified.
ADS7835E
TYP
ADS7835EB
TYP
PARAMETER
RESOLUTION
CONDITIONS
MIN
MAX
MIN
MAX
UNITS
12
✻
Bits
ANALOG INPUT(1)
Input Voltage Range
±2.5V with the 2.5V
–VREF
+VREF
✻
✻
V
Internal Reference
Input Capacitance
Input Resistance
25
2
✻
✻
pF
kΩ
During Conversion (CONV = LOW)
SYSTEM PERFORMANCE
No Missing Codes
Integral Linearity
Differential Linearity
Bipolar Offset Error
Positive Fulll-Scale Error(3)
12
✻
Bits
LSB(2)
LSB
LSB
LSB
LSB
LSB
LSB
±1
±0.8
±2
±2
±0.5
±0.5
±1
±1
±1
±5
±12
±25
±12
±25
±10
±20
±35
±20
±35
At 25°C
–40°C to +85°C
At 25°C
±12
±7
Negative Full-Scale Error(3)
±12
±7
–40°C to +85°C
Noise
200
0.3
✻
✻
µVrms
LSB
Power Supply Rejection Ratio
Worst-Case ∆, +VCC = 5V ±5%
SAMPLING DYNAMICS
Conversion Time
Acquisition Time
Throughput Rate
Aperture Delay
1.625
0.350
✻
✻
µs
µs
kHz
ns
ps
ns
500
–72
✻
5
30
375
✻
✻
✻
Aperture Jitter
Step Response
DYNAMIC CHARACTERISTICS
Signal-to-Noise Ratio
Total Harmonic Distortion(4)
Signal-to-(Noise+Distortion)
Spurious Free Dynamic Range
VIN = 5Vp-p at 10kHz
VIN = 5Vp-p at 10kHz
VIN = 5Vp-p at 10kHz
VIN = 5Vp-p at 10kHz
72
–78
70
✻
–82
72
dB
dB
dB
dB
–75
68
72
70
75
78
82
REFERENCE OUTPUT
Voltage
Source Current(5)
Line Regulation
IOUT = 0
Static Load
4.75V ≤ VCC ≤ 5.25V
2.475
2.50
0.2
2.525
50
2.48
✻
✻
2.52
✻
V
µA
mV
REFERENCE INPUT
Range
2.3
2.9
✻
✻
V
kΩ
Resistance(6)
To Internal Reference Voltage
10
✻
✻
DIGITAL INPUT/OUTPUT
Logic Family
Logic Levels:
VIH
VIL
VOH
CMOS
IIH ≤ +5µA
IIL ≤ +5µA
IOH = –500µA
IOL = 500µA
3.0
–0.3
3.5
+VCC + 0.3
0.8
✻
✻
✻
✻
✻
V
V
V
V
VOL
0.4
✻
Data Format
Binary Two’s Complement
✻
POWER SUPPLY REQUIREMENT
+VCC
Quiescent Current
Specified Performance
fSAMPLE = 500kHz
Power-Down
4.75
5.25
30
✻
✻
✻
V
3.5
0.5
17.5
2.5
✻
✻
✻
✻
mA
mA
mW
mW
Power Dissipation
Power-Down
TEMPERATURE RANGE
Specified Performance
–40
+85
✻
✻
°C
✻ Specifications same as ADS7835E.
NOTES: (1) Ideal input span, does not include gain or offset error. (2) LSB means Least Significant Bit, with VREF equal to +2.5V, one LSB is 1.22mV. (3) Measured
relative to an ideal positive full scale of 2.499V for positive full-scale error. Measured relative to an ideal negative full scale of –2.499V for negative full-scale error.
(4) Calculated on the first nine harmonics of the input frequency. (5) If the internal reference is required to source current to an external load, the reference voltage
will change due to the internal 10kΩ resistor. (6) Can vary ±30%.
The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN
assumes 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.
®
ADS7835
2