AD7893ANZ-10 Analog Devices Inc, AD7893ANZ-10 Datasheet - Page 4

• Manufacturer Part Number: AD7893ANZ-10
• Description: 12-BIT ADC,8 PIN PACKAGE
• Manufacturer: Analog Devices Inc

Specifications of AD7893ANZ-10

• Number Of Bits: 12
• Sampling Rate (per Second): 117k
• Data Interface: Serial
• Number Of Converters: 1
• Power Dissipation (max): 45mW
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Through Hole
• Package / Case: 8-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AD7893
Pin
No.
1
2
3
4
5
6
7
8
Pin
Mnemonic
REF IN
V
AGND
SCLK
SDATA
DGND
CONVST
V
IN
DD
Analog Ground. Ground reference for track/hold, comparator and DAC.
Serial Clock Input. An external serial clock is applied to this input to obtain serial data from the AD7893. A
Serial Data Output. Serial data from the AD7893 is provided at this output. The serial data is clocked out by
Digital Ground. Ground reference for digital circuitry.
Description
Voltage Reference Input. An external reference source should be connected to this pin to provide the refer-
Analog Input Channel. The analog input range is 10 V (AD7893-10), 2.5 V (AD7893-3), 0 V to +5 V
Convert Start. Edge-triggered logic input. On the falling edge of this input, the serial clock counter is reset to
Positive supply voltage, +5 V
ence voltage for the AD7893’s conversion process. The REF IN input is buffered on-chip. The nominal ref-
erence voltage for correct operation of the AD7893 is +2.5 V.
(AD7893-5) and 0 V to +2.5 V (AD7893-2).
new serial data bit is clocked out on the rising edge of this serial clock, and data is valid on the falling edge.
The serial clock input should be taken low at the end of the serial data transmission.
the rising edge of SCLK and is valid on the falling edge of SCLK. Sixteen bits of serial data are provided
with four leading zeros followed by the 12 bits of conversion data. On the sixteenth falling edge of SCLK, the
SDATA line is disabled (three-stated). Output data coding is twos complement for the AD7893-10 and
AD7893-3, straight binary for the AD7893-2 and AD7893-5.
zero. On the rising edge of this input, the track/hold goes into its hold mode and conversion is initiated.
Model
AD7893AN-2
AD7893BN-2
AD7893AR-2
AD7893BR-2
AD7893SQ-2
AD7893AR-3
*N = Plastic DIP, Q = Cerdip, SO = SOIC.
AD7893AN-5
AD7893BN-5
AD7893AR-5
AD7893BR-5
AD7893SQ-5
AD7893AN-10 –40 C to +85 C
AD7893BN-10 –40 C to +85 C
AD7893AR-10 –40 C to +85 C
AD7893BR-10 –40 C to +85 C
AD7893SQ-10 –55 C to +125 C
PIN FUNCTION DESCRIPTION
REF IN
Temperature
Range
–40 C to +85 C
–40 C to +85 C
–40 C to +85 C
–40 C to +85 C
–55 C to +125 C
–40 C to +85 C
–40 C to +85 C
–40 C to +85 C
–40 C to +85 C
–55 C to +125 C
–40 C to +85 C
AGND
SCLK
PIN CONFIGURATION
V
IN
5%.
1
2
3
4
ORDERING GUIDE
DIP and SOIC
(NOT TO SCALE)
AD7893
TOP VIEW
–4–
Linearity
Error
1 LSB
1/2 LSB 72 dB
1 LSB
1/2 LSB 72 dB
1 LSB
1 LSB
1/2 LSB 72 dB
1 LSB
1/2 LSB 72 dB
1 LSB
1 LSB
1/2 LSB 72 dB
1 LSB
1/2 LSB 72 dB
1 LSB
1 LSB
8
7
6
5
V
CONVST
DGND
SDATA
DD
SNR
70 dB
70 dB
70 dB
70 dB
70 dB
70 dB
70 dB
70 dB
70 dB
70 dB
Package
Options*
N-8
N-8
SO-8
SO-8
Q-8
N-8
N-8
SO-8
SO-8
Q-8
N-8
N-8
SO-8
SO-8
Q-8
SO-8
REV. E