AD9058JJ Analog Devices, AD9058JJ Datasheet

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AD9058JJ

Manufacturer Part Number
AD9058JJ
Description
AD9058JJDual 8-Bit 50 MSPS A/D Converter
Manufacturer
Analog Devices
Datasheet

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a
GENERAL DESCRIPTION
The AD9058 combines two independent high performance
8-bit analog-to-digital converters (ADCs) on a single mono-
lithic IC. Combined with an optional onboard voltage refer-
ence, the AD9058 provides a cost effective alternative for
systems requiring two or more ADCs.
Dynamic performance (SNR, ENOB) is optimized to provide
up to 50 MSPS conversion rates. The unique architecture
results in low input capacitance while maintaining high per-
formance and low power (<0.5 watt/channel). Digital inputs
and outputs are TTL compatible.
Performance has been optimized for an analog input of 2 V
p-p (± 1 V; 0 V to +2 V). Using the onboard +2 V voltage
reference, the AD9058 can be set up for unipolar positive
operation (0 V to +2 V). This internal voltage reference can
drive both ADCs.
Commercial (0°C to +70°C) and military (–55°C to +125°C)
temperature range parts are available. Parts are supplied in
hermetic 48-lead DIP and 44-lead “J” lead packages.
LO
RF
ENCODE
ENCODE
FUNCTIONAL BLOCK DIAGRAM
A
A
IN
IN
QUADRATURE RECEIVER
90°
Dual 8-Bit 50 MSPS
–V
–V
CONVERTER
CONVERTER
REF
REF
ANALOG-
ANALOG-
DIGITAL
DIGITAL
G
G
8-BIT
8-BIT
TO-
TO-
+2 V
REF
AD9058
+V
+V
A/D Converter
REF
REF
AD9058
AD9058
8
8
8
8
A
B
Q
I

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AD9058JJ Summary of contents

Page 1

GENERAL DESCRIPTION The AD9058 combines two independent high performance 8-bit analog-to-digital converters (ADCs single mono- lithic IC. Combined with an optional onboard voltage refer- ence, the AD9058 provides a cost effective alternative for systems requiring two or ...

Page 2

AD9058–SPECIFICATIONS 1 ABSOLUTE MAXIMUM RATINGS Analog Input . . . . . . . . . . . . . . . . . . . . . . . . . –1 +2 ...

Page 3

... 86.4°C/W; θ = 24.9°C/W; 48-lead hermetic DIP θ Temperature Model Range AD9058JJ 0°C to +70°C AD9058KJ 0°C to +70°C 3 AD9058TJ/883 –55°C to +125°C 44-Lead J-Leaded AD9058JD 0°C to +70°C AD9058KD 0° ...

Page 4

AD9058 J-Lead Pin Number ADC-A ADC-B Name REF 4 42 GROUND AIN 7 39 – –V REF ENCODE (MSB) ...

Page 5

THEORY OF OPERATION The AD9058 contains two separate 8-bit analog-to-digital con- verters (ADCs single silicon die. The two devices can be operated independently with separate analog inputs, voltage references and clocks traditional flash converter, 256 input ...

Page 6

AD9058 +5V 1 AD580 2 10k 10k 0.1µF 20k 50 ANALOG IN A ±0.125 V – 1/2 AD708 + 50 ANALOG IN B ±0.125 V RZ1, RZ2 = 2,000Ω SIP (8/PKG) The AD9058 offers considerable flexibility in selecting the ana- ...

Page 7

N ANALOG INPUT ENCODE D – D VALID DATA 0 7 FOR N – 1 Figure 5 below shows what the analog input to the AD9058 would look like when observed relative to the sample clock. Signal- to-noise ratio (SNR), ...

Page 8

AD9058 Die Dimensions . . . . . . . . . . . . . . . . 106 × 108 × 15 (± 2) mils Pad Dimensions . . . . . . . . . . . ...

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