- Analog Devices, Inc.
- ICT and Industrial
The ADA4356 is a low-noise, wide-dynamic-range current-input analog-to-digital converter (ADC) μModule. Designed to save space in size-sensitive applications, the ADA4356 incorporates all the active and passive components necessary for a complete current/bit data acquisition solution, with configurable gain and FILTERS characteristics.
The ADA4356's high-speed TRANSFORMERS amplifier (TIA) front-end amplifier supports a pulse width of 20 ns, providing high spatial resolution in ToF measurements and enabling fast overdrive recovery from large input signals. The ADA4356 features three selectable TIA feedback resistance values for configurable TIA gain.
The internal analog low-pass FILTERS provides cutoff frequencies of 100MHz or 1MHz, reducing broadband noise and acting as an anti-aliasing FILTERS for the ADC input. For low-bandwidth signals, a 1MHz FILTERS configuration further reduces noise.
Following the TIA and FILTERS blocks, a 14-bit pipelined ADC converts the analog signal at 125 MSPS and outputs the digitized signal via two series low-voltage differential signaling (LVDS) data lanes, each operating at up to 1 GBPS. The data clock output (DCO) operates at frequencies up to 500 MHz and also supports double data rate (DDR) operation.
Features
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A high-performance current input, data acquisition μModule with the following features:
Programmable Gain TRANSFORMERS Amplifier (PGTIA)
Fully Differential Amplifier (FDA)
Configurable analog low-pass FILTERS (LPF)
14-bit, 125 MSPS ADC
Three selectable gains
Built-in 1.8V LDO for ADC -
Small form factor: 12.00mm × 6.00mm BGA
-
Operates on a single 3.3V POWER SUPPLIES.
-
PGTIA selectable gain, single 20ns pulse sensitivity
TZ = 133kΩ, 250nA to 10μA
TZ = 11kΩ, 1μA to 100μA
TZ = 4.54kΩ, 10μA to 300μA -
An optional external subcurrent circuit allows for current detection up to 60mA.
-
High-speed input overload recovery
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Analog FILTERS for noise reduction and anti-aliasing FILTERS
Selectable LPF bandwidths of 1.0MHz and 100MHz.
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Low input-referred current noise: 3.5 nA RMS
TZ = 133kΩ, 1MHz analog FILTERS
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14-bit ADC with a maximum sample rate of 125 MSPS
Serial LVDS data output
Serial Peripheral Interface (SPI) control -
Quiasting power: 546mW, LDO enabled
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Temperature range: -40°C to +85°C
application
- Time of Flight (ToF)
- Converting current to bits
- Rangefinder
- Optical fiber sensing
- Optical time domain reflectometry (OTDR)
Order information
| Model | Temperature Range | Package Description |
|---|---|---|
| ADA4356ABCZ | -40°C to +85°C | 84-Ball Chip-Scale Package Ball Grid Array [CSP_BGA] |
Evaluation boards, simulation models
Detail Link
ADA4356Inquiry
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