maxq7667 Maxim Integrated Products, Inc., maxq7667 Datasheet - Page 3

• Manufacturer Part Number: maxq7667
• Description: 16-bit, Risc, Microcontroller-based, Ultrasonic Distance-measuring System
• Manufacturer: Maxim Integrated Products, Inc.

ELECTRICAL CHARACTERISTICS (continued)
(V
(f
otherwise specified. Typical values are at T
BANDPASS FILTER
Center Frequency
Passband Width
Minimum Stopband
Rejection
Output Data Rate
Output Data Resolution
LOWPASS FILTER
Corner Frequency
Rolloff
Output Data Rate
Output Data Resolution
SAR ADC
Resolution
Integral Nonlinearity
Differential Nonlinearity
Offset Error
Offset-Error Drift
Gain Error
Gain-Error Temperature
Coefficient
Input-Referred Noise
Differential Input Range
Absolute Input Range
Input Leakage Current
Conversion Time
Input Capacitance
Track-and-Hold Acquisition
Time
Turn-On Time
Conversion Clock
Conversion Rate
BPF
DVDDIO
) = 50kHz, C
PARAMETER
= +5V, V
REFBG
AVDD
_______________________________________________________________________________________
= C
Ultrasonic Distance-Measuring System
= +3.3V; V
REF
= 1µF in parallel with 0.01µF, f
SYMBOL
16-Bit, RISC, Microcontroller-Based,
f
ADCCLK
f
f
DVDD
BPF
LPF
= +2.5V, system clock (f
A
= +25°C.)
-3dB
One decade away from center
frequency
-3dB
Measurement
No missing codes
Tested at 125ksps
Tested at 125ksps
At ADC inputs
Unipolar
Bipolar
13 ADCCLK cycles at 2MHz
Three ADCCLK cycles at 2MHz
Eight ADCCLK cycles at 2MHz
f
tested)
ADCCLK
= 4MHz (not production
CONDITIONS
ADCCLK
SYSCLK
= 2MHz (SAR data rate = 125ksps), T
) = 16MHz, burst frequency (f
-V
MIN
REF
0.5
25
12
11
-2
0
0
/2
0.14 x f
0.1 x f
10 x f
5 x f
±0.4
±0.1
TYP
400
-60
±1
±1
±5
16
40
16
14
BPF
BURST
BPF
BPF
BPF
A
) = bandpass frequency
+V
= T
V
MAX
V
100
AVDD
250
6.5
1.5
±2
+2
±3
±1
REF
REF
4
4
MIN
/2
to T
dB/Decade
ppmFS/°C
MAX
UNITS
µV
µV/°C
ksps
ksps
ksps
MHz
kHz
kHz
Bits
kHz
Bits
Bits
LSB
LSB
mV
dB
µA
pF
µs
µs
µs
, unless
%
RMS
V
V
3